HOW TO: Determine what errors a check engine light represent

Discussion in 'How To' started by Bennett, Dec 10, 2004.

  1. Bennett

    Bennett Active Member Administrator

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    Here's an easy way to determine why the check engine light is coming on.

    Turn the key to the accessory position then off
    then accessory then off
    then accessory...

    (Basically, three cycles of accessory/off, ending up in the accessory position.)

    At this point, in the odomoder area, you will see a code that corresponds to the error code.


    Alternate Method
    ADDED BY GROGIEFROG: There is another way that only works on my 2004:
    Start with the ignition off. Within five seconds, switch the key on, off, on, off, on. ("On" is NOT "Start" and "Off" is NOT "Lock").

    Bit off topic - Test for Gauges
    -----
    1. Hold in the trip reset button.
    2. Turn key to ON position.
    3. Release trip reset button.
    4. Gauge and Lamp test begins
    5. When odometer is finished counting codes display
    6. Test is done when you see a Software Version number (e.g. 6.4) and Odometer returns to normal.


    ~~~ Code list updated 2/1/05 ~~~

    <table border="1" cellpadding="2" cellspacing="0"><tr><td bgcolor="#555555">Code</td><td bgcolor="#555555">What it means</td></tr><tr><td bgcolor="white">30</td><td bgcolor="white">Sensor heater relay problem</td></tr> <tr><td bgcolor="#dddddd">36</td><td bgcolor="#dddddd">Sensor heater relay problem</td></tr> <tr><td bgcolor="white">106</td><td bgcolor="white">MAP sensor voltage out of range detected at startup</td></tr> <tr><td bgcolor="#dddddd">107</td><td bgcolor="#dddddd">MAP sensor voltage too low</td></tr> <tr><td bgcolor="white">108</td><td bgcolor="white">MAP sensor voltage too high</td></tr> <tr><td bgcolor="#dddddd">112</td><td bgcolor="#dddddd">Intake air temperature sensor voltage low</td></tr> <tr><td bgcolor="white">113</td><td bgcolor="white">Intake air (charge) temperature sensor voltage high</td></tr> <tr><td bgcolor="#dddddd">116</td><td bgcolor="#dddddd">Coolant temparature sensor reading doesn't make sense</td></tr> <tr><td bgcolor="white">117</td><td bgcolor="white">Engine coolant temperature sensor voltage low</td></tr> <tr><td bgcolor="#dddddd">118</td><td bgcolor="#dddddd">Engine coolant temperature sensor voltage high</td></tr> <tr><td bgcolor="white">121</td><td bgcolor="white">Throttle position sensor and MAP sensor disagree with each other</td></tr> <tr><td bgcolor="#dddddd">122</td><td bgcolor="#dddddd">Throttle position sensor voltage low</td></tr> <tr><td bgcolor="white">123</td><td bgcolor="white">Throttle position sensor voltage high</td></tr> <tr><td bgcolor="#dddddd">125</td><td bgcolor="#dddddd">Taking too long to reach proper operating temparature and switch to energy-efficient mode</td></tr><tr><td bgcolor="white">129</td><td bgcolor="white">Bad barometric pressure sensor (thanks, John King)</td></tr><tr><td bgcolor="white">130</td><td bgcolor="white">Sensor heater relay problem</td></tr><tr><td bgcolor="#dddddd">131</td><td bgcolor="#dddddd">Oxygen sensor seems to be shorted out or broken</td></tr><tr><td bgcolor="white">147</td><td bgcolor="white">Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)</td></tr><tr><td bgcolor="#dddddd">151</td><td bgcolor="#dddddd">Oxygen sensor voltage problem - short circuit to ground?</td></tr> <tr><td bgcolor="white">152</td><td bgcolor="white">Oxygen sensor voltage problem - short circuit to active 12V?</td></tr> <tr><td bgcolor="#dddddd">153</td><td bgcolor="#dddddd">Oxygen sensor response too slow</td></tr> <tr><td bgcolor="white">154</td><td bgcolor="white">Oxygen sensor does not show either a rich or lean condition - may need replacement</td></tr> <tr><td bgcolor="#dddddd">155</td><td bgcolor="#dddddd">Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)</td></tr> <tr><td bgcolor="white">157</td><td bgcolor="white">Oxygen sensor voltage problem - short circuit to ground?</td></tr> <tr><td bgcolor="#dddddd">158</td><td bgcolor="#dddddd">Oxygen sensor voltage problem - short circuit to active 12V?</td></tr> <tr><td bgcolor="white">159</td><td bgcolor="white">Oxygen sensor response too slow</td></tr> <tr><td bgcolor="#dddddd">160</td><td bgcolor="#dddddd">Oxygen sensor does not show either a rich or lean condition - may need replacement</td></tr> <tr><td bgcolor="white">161</td><td bgcolor="white">Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)</td></tr> <tr><td bgcolor="#dddddd">171</td><td bgcolor="#dddddd">The oxygen sensor is saying that the system air/fuel mix is far too lean (too much fuel is being added as a correction).</td></tr> <tr><td bgcolor="white">172</td><td bgcolor="white">The oxygen sensor is saying that the system air/fuel mix is far too rich (too much air is being added as a correction).</td></tr> <tr><td bgcolor="#dddddd">174</td><td bgcolor="#dddddd">The oxygen sensor is saying that the system air/fuel mix is far too lean (too much fuel is being added as a correction).</td></tr> <tr><td bgcolor="white">175</td><td bgcolor="white">The oxygen sensor is saying that the system air/fuel mix is far too rich (too much air is being added as a correction).</td></tr> <tr><td bgcolor="#dddddd">176</td><td bgcolor="#dddddd">Flex fuel sensor can't be seen</td></tr> <tr><td bgcolor="white">178</td><td bgcolor="white">Flex fuel sensor problem</td></tr> <tr><td bgcolor="#dddddd">179</td><td bgcolor="#dddddd">Flex fuel sensor problem</td></tr> <tr><td bgcolor="white">182</td><td bgcolor="white">Compressed natural gas temperature sensor problem</td></tr> <tr><td bgcolor="#dddddd">183</td><td bgcolor="#dddddd">Compressed natural gas temperature sensor problem</td></tr> <tr><td bgcolor="white">201</td><td bgcolor="white">Injector #1 control circuit problem (open or shorted)</td></tr> <tr><td bgcolor="#dddddd">202</td><td bgcolor="#dddddd">Injector #2 control circuit problem (open or shorted)</td></tr> <tr><td bgcolor="white">203</td><td bgcolor="white">Injector #3 control circuit problem (open or shorted)</td></tr> <tr><td bgcolor="#dddddd">204</td><td bgcolor="#dddddd">Injector #4 control circuit problem (open or shorted)</td></tr> <tr><td bgcolor="white">205</td><td bgcolor="white">Injector #5 control circuit problem (open or shorted) </td></tr> <tr><td bgcolor="#dddddd">206</td><td bgcolor="#dddddd">Injector #6 control circuit problem (open or shorted) </td></tr> <tr><td bgcolor="white">207</td><td bgcolor="white">Injector #7 control circuit problem (open or shorted) </td></tr> <tr><td bgcolor="#dddddd">208</td><td bgcolor="#dddddd">Injector #8 control circuit problem (open or shorted) </td></tr> <tr><td bgcolor="white">209</td><td bgcolor="white">Injector #9 control circuit problem (open or shorted) </td></tr> <tr><td bgcolor="#dddddd">210</td><td bgcolor="#dddddd">Injector #10 control circuit problem (open or shorted) </td></tr> <tr><td bgcolor="white">300</td><td bgcolor="white">Misfire detected in multiple cylinders.</td></tr> <tr><td bgcolor="#dddddd">301</td><td bgcolor="#dddddd">Misfire detected in cylinder #1.</td></tr> <tr><td bgcolor="white">302</td><td bgcolor="white">Misfire detected in cylinder #2.</td></tr> <tr><td bgcolor="#dddddd">303</td><td bgcolor="#dddddd">Misfire detected in cylinder #3.</td></tr> <tr><td bgcolor="white">304</td><td bgcolor="white">Misfire detected in cylinder #4.</td></tr> <tr><td bgcolor="#dddddd">305</td><td bgcolor="#dddddd">Misfire detected in cylinder #5. </td></tr> <tr><td bgcolor="white">306</td><td bgcolor="white">Misfire detected in cylinder #6.</td></tr> <tr><td bgcolor="#dddddd">307</td><td bgcolor="#dddddd">Misfire detected in cylinder #7</td></tr> <tr><td bgcolor="white">308</td><td bgcolor="white">Misfire detected in cylinder #8.</td></tr> <tr><td bgcolor="#dddddd">309</td><td bgcolor="#dddddd">Misfire detected in cylinder #9.</td></tr> <tr><td bgcolor="white">310</td><td bgcolor="white">Misfire detected in cylinder #10.</td></tr> <tr><td bgcolor="#dddddd">320</td><td bgcolor="#dddddd">Crankshaft position sensor reference signal cannot be found while the engine is cranking.</td></tr> <tr><td bgcolor="white">325</td><td bgcolor="white">Knock sensor (#1) signal is wrong.</td></tr> <tr><td bgcolor="#dddddd">330</td><td bgcolor="#dddddd">Knock sensor (#2) signal is wrong.</td></tr> <tr><td bgcolor="white">340</td><td bgcolor="white">No camshaft signal being received by the computer</td></tr> <tr><td bgcolor="#dddddd">350</td><td bgcolor="#dddddd">A coil is drawing too much current.</td></tr> <tr><td bgcolor="white">351</td><td bgcolor="white">Coil #1 is not reaching peak current at the right time</td></tr> <tr><td bgcolor="#dddddd">352</td><td bgcolor="#dddddd">Coil #2 is not reaching peak current at the right time</td></tr> <tr><td bgcolor="white">353</td><td bgcolor="white">Coil #3 is not reaching peak current at the right time</td></tr> <tr><td bgcolor="#dddddd">354</td><td bgcolor="#dddddd">Coil #4 is not reaching peak current at the right time</td></tr> <tr><td bgcolor="white">355</td><td bgcolor="white">Coil #5 is not reaching peak current at the right time</td></tr> <tr><td bgcolor="#dddddd">356</td><td bgcolor="#dddddd">Coil #6 is not reaching peak current at the right time</td></tr> <tr><td bgcolor="white">357</td><td bgcolor="white">Coil #7 is not reaching peak current at the right time</td></tr> <tr><td bgcolor="#dddddd">358</td><td bgcolor="#dddddd">Coil #8 is not reaching peak current at the right time</td></tr> <tr><td bgcolor="white">401</td><td bgcolor="white">A required change in air/fuel mixture was not detected during diagnostic test.</td></tr> <tr><td bgcolor="#dddddd">403</td><td bgcolor="#dddddd">An problem was detected in the EGR solenoid control circuit.</td></tr> <tr><td bgcolor="white">404</td><td bgcolor="white">The EGR sensor's reported position makes no sense</td></tr> <tr><td bgcolor="#dddddd">405</td><td bgcolor="#dddddd">EGR position sensor voltage wrong.</td></tr> <tr><td bgcolor="white">406</td><td bgcolor="white">EGR position sensor voltage wrong.</td></tr> <tr><td bgcolor="#dddddd">412</td><td bgcolor="#dddddd">The secondary air solenoid control circuit seems bad (this is used for the aspirator).</td></tr> <tr><td bgcolor="white">420</td><td bgcolor="white">The catalyst seems inefficient (#1).</td></tr> <tr><td bgcolor="#dddddd">432</td><td bgcolor="#dddddd">The catalyst seems inefficient (#2).</td></tr> <tr><td bgcolor="white">441</td><td bgcolor="white">Evaporative purge flow system not working properly</td></tr> <tr><td bgcolor="#dddddd">442</td><td bgcolor="#dddddd">A leak has been detected in the evaporative system!
    JeepKJ Note:Check your gas cap</td></tr> <tr><td bgcolor="white">443</td><td bgcolor="white">Evaporative purge flow system solenoid not working properly</td></tr> <tr><td bgcolor="#dddddd">455</td><td bgcolor="#dddddd">A large leak has been detected in the evaporative system!</td></tr> <tr><td bgcolor="white">456</td><td bgcolor="white">A small leak has been detected in the evaporative system!</td></tr> <tr><td bgcolor="#dddddd">460</td><td bgcolor="#dddddd">The fuel level sender is not reporting any change over a long distance. Something seems wrong.</td></tr> <tr><td bgcolor="white">461</td><td bgcolor="white">The fuel level sender is not reporting any change over a long time. Something seems wrong.</td></tr> <tr><td bgcolor="#dddddd">462</td><td bgcolor="#dddddd">Fuel level sender voltage wrong.</td></tr> <tr><td bgcolor="white">463</td><td bgcolor="white">Fuel level sender voltage wrong.</td></tr> <tr><td bgcolor="#dddddd">500</td><td bgcolor="#dddddd">Haven't heard from the speed sensor lately.</td></tr> <tr><td bgcolor="white">505</td><td bgcolor="white">The idle speed air control motor doesn't seem to be working correctly.</td></tr> <tr><td bgcolor="#dddddd">522</td><td bgcolor="#dddddd">Oil pressure sensor problems</td></tr> <tr><td bgcolor="white">523</td><td bgcolor="white">Oil pressure sensor problems</td></tr> <tr><td bgcolor="#dddddd">551</td><td bgcolor="#dddddd">The power steering switch may not be working. (Neons: high pressure is showing up at high speed)</td></tr> <tr><td bgcolor="white">600</td><td bgcolor="white">Oh-oh! The coprocessors aren't talking to each other within the computer!</td></tr> <tr><td bgcolor="#dddddd">601</td><td bgcolor="#dddddd">Internal computer error!</td></tr> <tr><td bgcolor="white">604</td><td bgcolor="white">Internal computer error! (RAM check)</td></tr> <tr><td bgcolor="#dddddd">605</td><td bgcolor="#dddddd">Internal computer error! (ROM)</td></tr> <tr><td bgcolor="white">615</td><td bgcolor="white">Starter relay circuit problem</td></tr> <tr><td bgcolor="#dddddd">622</td><td bgcolor="#dddddd">Generator field control problem</td></tr> <tr><td bgcolor="white">645</td><td bgcolor="white">A/C clutch relay circuit problem.</td></tr> <tr><td bgcolor="#dddddd">700</td><td bgcolor="#dddddd">The automatic transmission computer or Aisin computer has a problem - ask it what's going on. I don't know.</td></tr> <tr><td bgcolor="white">703</td><td bgcolor="white">Brake switch circuit information seems wrong.</td></tr> <tr><td bgcolor="#dddddd">711</td><td bgcolor="#dddddd">Based on the transmission temperature and its operations, it looks like the transmission temperature sensor's gone bad.</td></tr> <tr><td bgcolor="white">712</td><td bgcolor="white">Transmission fluid temperature sensor voltage wrong.</td></tr> <tr><td bgcolor="#dddddd">713</td><td bgcolor="#dddddd">Transmission fluid temperature sensor voltage wrong.</td></tr> <tr><td bgcolor="white">720</td><td bgcolor="white">The Output Shaft Speed Sensor doesn't match the reported vehicle speed.</td></tr> <tr><td bgcolor="#dddddd">740</td><td bgcolor="#dddddd">The engine's running faster than it should for these speeds, so I think thetorque convertor clutch lock-up system is bad</td></tr> <tr><td bgcolor="white">743</td><td bgcolor="white">Torque converter clutch (part throttle unlock) solenoid circuit problem - shift solenoid C electrical fault</td></tr> <tr><td bgcolor="#dddddd">748</td><td bgcolor="#dddddd">Governor Pressure Solenoid circuit problem (Transmission relay circuit problem in Jeep RE transmissions)</td></tr> <tr><td bgcolor="white">751</td><td bgcolor="white">Overdrive override switch has been pressed for over five minutes. Just thought you should know.</td></tr> <tr><td bgcolor="#dddddd">753</td><td bgcolor="#dddddd">Overdrive solenoid control circuit problem (transmission relay circuit in Jeep RE transmissions.)</td></tr> <tr><td bgcolor="white">756</td><td bgcolor="white">Shift solenoid B (2-3) fault</td></tr> <tr><td bgcolor="#dddddd">783</td><td bgcolor="#dddddd">The overdrive solenoid can't go from 3rd gear to the overdrive gear.</td></tr> <tr><td bgcolor="white">801</td><td bgcolor="white">Transmission reverse gear lockout solenoid circuit problem!</td></tr> <tr><td bgcolor="#dddddd">833</td><td bgcolor="#dddddd">Problem with the clutch-released switch circuit?</td></tr> <tr><td bgcolor="white">1192</td><td bgcolor="white">Inlet air temperature sensor voltage is wrong</td></tr> <tr><td bgcolor="#dddddd">1193</td><td bgcolor="#dddddd">Inlet air temperature sensor voltage is wrong</td></tr> <tr><td bgcolor="white">1194</td><td bgcolor="white">Oxygen sensor heater performance is faulty</td></tr> <tr><td bgcolor="#dddddd">1195</td><td bgcolor="#dddddd">Oxygen sensor is slow</td></tr> <tr><td bgcolor="white">1196</td><td bgcolor="white">The oxygen sensor switched too slowly (bank 2).</td></tr> <tr><td bgcolor="#dddddd">1197</td><td bgcolor="#dddddd">The oxygen sensor switched too slowly (bank 1).</td></tr> <tr><td bgcolor="white">1198</td><td bgcolor="white">Radiator coolant temperature sensor voltage is wrong.</td></tr> <tr><td bgcolor="#dddddd">1199</td><td bgcolor="#dddddd">Radiator coolant temperature sensor voltage is wrong.</td></tr> <tr><td bgcolor="white">1281</td><td bgcolor="white">The engine is staying cold too long - check your thermostat.</td></tr> <tr><td bgcolor="#dddddd">1282</td><td bgcolor="#dddddd">The fuel pump relay circuit seems to be having a problem.</td></tr> <tr><td bgcolor="white">1288</td><td bgcolor="white">The intake manifold short runner tuning valve circuit seems to be having a problem.</td></tr> <tr><td bgcolor="#dddddd">1289</td><td bgcolor="#dddddd">There's a problem in the manifold tuning valve solenoid control circuit.</td></tr> <tr><td bgcolor="white">1290</td><td bgcolor="white">Compressed natural gas system pressure is too high</td></tr> <tr><td bgcolor="#dddddd">1291</td><td bgcolor="#dddddd">The heated air intake sensor does not seem to be working.</td></tr> <tr><td bgcolor="white">1292</td><td bgcolor="white">Natural gas pressure sensor issue</td></tr> <tr><td bgcolor="#dddddd">1293</td><td bgcolor="#dddddd">Natural gas pressure sensor issue</td></tr> <tr><td bgcolor="white">1294</td><td bgcolor="white">Can't get to target engine speed, check for vacuum leaks and idle speed motor issues.</td></tr> <tr><td bgcolor="#dddddd">1295</td><td bgcolor="#dddddd">The throttle position sensor doesn't seem to be getting enough electricity.</td></tr> <tr><td bgcolor="white">1296</td><td bgcolor="white">The MAP sensor doesn't seem to be getting enough electricity.</td></tr> <tr><td bgcolor="#dddddd">1297</td><td bgcolor="#dddddd">The MAP sensor doesn't change its reading when the engine is running!</td></tr> <tr><td bgcolor="white">1298</td><td bgcolor="white">During wide-open throttle, the engine runs lean.</td></tr> <tr><td bgcolor="#dddddd">1299</td><td bgcolor="#dddddd">MAP Sensor and Throttle Position Sensor signals don't match, check for a vacuum leak.</td></tr> <tr><td bgcolor="white">1388</td><td bgcolor="white">Auto shutdown relay circuit problems?</td></tr> <tr><td bgcolor="#dddddd">1389</td><td bgcolor="#dddddd">No Z1 or Z2 voltage seen by the computer when the auto shutdown relay is used.</td></tr> <tr><td bgcolor="white"> 1390</td><td bgcolor="white">Cam and crank signals don't match - did the timing belt skip a tooth?</td></tr> <tr><td bgcolor="#dddddd">1391</td><td bgcolor="#dddddd">Sometimes, I can't see the crank or cam sensor signal.</td></tr> <tr><td bgcolor="white">1398</td><td bgcolor="white">I can see the Crank Sensor's signal when I prepare for Misfire Diagnostics. Try replacing it.</td></tr> <tr><td bgcolor="#dddddd">1399</td><td bgcolor="#dddddd">Problem in the Wait to Start Lamp circuit - (diesels only?)</td></tr> <tr><td bgcolor="white">1403</td><td bgcolor="white">EGR position sensor not getting (enough) voltage.</td></tr> <tr><td bgcolor="#dddddd">1476</td><td bgcolor="#dddddd">Too little secondary air injection during aspirator test.</td></tr> <tr><td bgcolor="white">1477</td><td bgcolor="white">Too much secondary air injection during aspirator test.</td></tr> <tr><td bgcolor="#dddddd">1478</td><td bgcolor="#dddddd">Battery temperature sensor voltage wrong.</td></tr> <tr><td bgcolor="white">1479</td><td bgcolor="white">Transmission fan relay circuit problems?</td></tr> <tr><td bgcolor="#dddddd">1480</td><td bgcolor="#dddddd">PCV solenoid circuit problems?</td></tr> <tr><td bgcolor="white">1481</td><td bgcolor="white">Transmission RPM pulse generator signal for misfire detection seems wrong.</td></tr> <tr><td bgcolor="#dddddd">1482</td><td bgcolor="#dddddd">Catalyst temperature sensor circuit shorted low.</td></tr> <tr><td bgcolor="white">1483</td><td bgcolor="white">Catalyst temperature sensor circuit shorted high.</td></tr> <tr><td bgcolor="#dddddd">1484</td><td bgcolor="#dddddd">The catalyst seems to be overheating!</td></tr> <tr><td bgcolor="white">1485</td><td bgcolor="white">Air injection solenoid circuit problems.</td></tr> <tr><td bgcolor="#dddddd">1486</td><td bgcolor="#dddddd">Pinched or blocked hose in the evaporative hose system.</td></tr> <tr><td bgcolor="white">1487</td><td bgcolor="white">Control circuit of the #2 high-speed radiator fan control relay is having problems.</td></tr> <tr><td bgcolor="#dddddd">1488</td><td bgcolor="#dddddd">Auxiliary 5-volt sensor feed is too low.</td></tr> <tr><td bgcolor="white">1489</td><td bgcolor="white">High speed radiator fan control circuit problem.</td></tr> <tr><td bgcolor="#dddddd">1490</td><td bgcolor="#dddddd">Low speed radiator fan control circuit problem.</td></tr> <tr><td bgcolor="white">1491</td><td bgcolor="white">Radiator fan control circuit problem (may be solid state relays as well as other circuits).</td></tr> <tr><td bgcolor="#dddddd">1492</td><td bgcolor="#dddddd">Ambient or battery temperature sensor voltage wrong</td></tr> <tr><td bgcolor="white">1493</td><td bgcolor="white">Ambient or battery temperature sensor voltage wrong</td></tr> <tr><td bgcolor="#dddddd">1494</td><td bgcolor="#dddddd">Leak Detection Pump (LDP) pressure switch problem - electrical or the pump itself.</td></tr> <tr><td bgcolor="white">1495</td><td bgcolor="white">Leak Detection Pump (LDP) pressure switch problem - the solenoid circuit.</td></tr> <tr><td bgcolor="#dddddd">1496</td><td bgcolor="#dddddd">Sensor feed is below an acceptable limit. (under 4v for 4 seconds - should be 5v).</td></tr> <tr><td bgcolor="white">1498</td><td bgcolor="white">High speed radiator fan control circuit problem. (#3 control relay)</td></tr> <tr><td bgcolor="#dddddd">1594</td><td bgcolor="#dddddd">Voltage too high in charging system.</td></tr> <tr><td bgcolor="white">1595</td><td bgcolor="white">Speed control vacuum or vent solenoid control circuits shorted or lost.</td></tr> <tr><td bgcolor="#dddddd">1596</td><td bgcolor="#dddddd">Speed control switch always high</td></tr> <tr><td bgcolor="white">1597</td><td bgcolor="white">Speed control switch always low</td></tr> <tr><td bgcolor="#dddddd">1598</td><td bgcolor="#dddddd">A/C pressure sensor voltage high</td></tr><tr><td bgcolor="white">1599</td><td bgcolor="white">A/C pressure sensor voltage low</td></tr><tr><td bgcolor="#dddddd">1681</td><td bgcolor="#dddddd">No messages received from the cluster control module (dashboard computer).</td></tr><tr><td bgcolor="white">1682</td><td bgcolor="white">Charging system doesn't seem to be working well. Check alternator, etc.</td></tr> <tr><td bgcolor="#dddddd">1683</td><td bgcolor="#dddddd">Speed control servo power control circuit problem.</td></tr> <tr><td bgcolor="white">1684</td><td bgcolor="white">The battery has been disconnected within the last 50 starts.</td></tr> <tr><td bgcolor="#dddddd">1685</td><td bgcolor="#dddddd">Invalid key received from the Smart Key Immobilizer Module.</td></tr> <tr><td bgcolor="white">1686</td><td bgcolor="white">No messages received from the Smart Key Immobilizer Module.</td></tr> <tr><td bgcolor="#dddddd">1687</td><td bgcolor="#dddddd">No messages received from the Mechanical Instrument Cluster module.</td></tr> <tr><td bgcolor="white">1 693</td><td bgcolor="white">The companion engine control module has shown a fault.</td></tr> <tr><td bgcolor="#dddddd">1694</td><td bgcolor="#dddddd">No messages received from the powertrain control module-Aisin transmission.</td></tr> <tr><td bgcolor="white">1695</td><td bgcolor="white">No messages received from the body control module.</td></tr> <tr><td bgcolor="#dddddd">1696</td><td bgcolor="#dddddd">Unsuccessful attempt to write to an EEPROM location!</td></tr> <tr><td bgcolor="white">1697</td><td bgcolor="white">Unsuccessful attempt to update Service Reminder Indicator (SRI or EMR) mileage!</td></tr> <tr><td bgcolor="#dddddd">1698</td><td bgcolor="#dddddd">No messages received from the electronic transmission control module or the Aisin transmission controller.</td></tr> <tr><td bgcolor="white">1719</td><td bgcolor="white">Transmission 2-3 gear lockout solenoid control circuit problem.</td></tr> <tr><td bgcolor="#dddddd">1740</td><td bgcolor="#dddddd">Either the tcc solenoid or overdrive solenoid systems doesn't seem to be making much sense.</td></tr> <tr><td bgcolor="white">1756</td><td bgcolor="white">Transmission control pressure not equal to target. (Mid pressure problem)</td></tr> <tr><td bgcolor="#dddddd">1757</td><td bgcolor="#dddddd">Transmission control pressure not equal to target. (Zero pressure problem)</td></tr> <tr><td bgcolor="white">1762</td><td bgcolor="white">The Governor Pressure Sensor input was too high or too low for 3 consecutive park/neutral calibrations.</td></tr> <tr><td bgcolor="#dddddd">1763</td><td bgcolor="#dddddd">The Governor Pressure Sensor input is too high</td></tr> <tr><td bgcolor="white">1764</td><td bgcolor="white">The Governor Pressure Sensor input is too low.</td></tr> <tr><td bgcolor="#dddddd">1765</td><td bgcolor="#dddddd">Open or short in the Transmission Relay control circuit.</td></tr> <tr><td bgcolor="white">1899</td><td bgcolor="white">The Park/Neutral switch seems to be stuck!</td></tr></table>

    -Blu
     
  2. BluPhant

    BluPhant Full Access Member

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    Connecticut
    I'm trying to add to this list, when members here have a solution to a code, or more explanation to whats wrong, I can edit the codes post to have a link to this document. So if anyone has any thoughts, either reply here, or PM me.

    Example:
    <TABLE><tr><td bgcolor="#dddddd">442</td><td bgcolor="#dddddd">A leak has been detected in the evaporative system!
    JeepKJ Note:Check your gas cap</td></tr> </TABLE>

    Thanks much!!!!

    -Blu
     
  3. nickpar

    nickpar New Member

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    ATHENS-GREECE
    now ..what ??

    I try to check the evic self test. Because the abs check is open. The dealer off
    jeep send me that must change the right front sensor. Can i see this problem
    in the evic ?
    The result was:

    Software rev:
    EVIC=13 HL= NO (2 SECONDS I SEE THIS MESSAGE )AND THEN
    PASSED SELF TEST (AND NOTHING ELSE )

    My KJ is model 2002
    Can you tell me what happen??
     
  4. jmirro

    jmirro New Member

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    6.0

    I ran the test, had to use Method 2, 1st one didn't work.

    Ran through the cycle and it ended with a 6.0; I don't see that listed or is that equivilent to 600 (and I've got a computer error!)?

    Check engine lights been on for a couple weeks now, don't notice any difference in performance though. This happened a couple years ago and it ended up being loose gas cap. I've checked that, and don't think thats the problem this time.

    Oh yeah...

    '02 Limited 4WD 3.7L V6
    40K Miles
     
  5. Talon

    Talon Full Access Member

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    There have been reports that this method wont work with \'04s, if anyone has feedback on this, post here.

    Did the on/off thing 3 times on my `04 and it worked. My check engine light came on last week at GWNF and it runs fine. I got code 0038...

    Mike


    [Edit]Did some research and found this here: P0038 - HO2S Heater Control Circuit High Bank 1 Sensor 2[/Edit]

    Update 8/8/05: I had the dealership look at it and they stated on their report: "Tech found 02 Sensor not staying centered. Replaced 02 Sensor assy." Fixed under warranty.
     
  6. castle

    castle New Member

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    Codes on '03 Liberty Limited

    I tried both methods mentioned above and wasn't able to retrieve any codes. First method yielded nothing and the second ended with a 1.4 which I'm assuming is the software version and then it went right to the miles on odometer. Do I have to go buy an OBD II reader?
     
  7. AtlanticLiberty

    AtlanticLiberty Full Access Member

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    Neither one of these worked for me either. If you have a Autozone or Advanced Auto parts by you, you can simply stop in and they will read your code for you for free with their reader. That's what I did. Save yourself some $
     
  8. castle

    castle New Member

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    thanks man, I just might do that. Only thing is the truck is stalling, don't know if I'll make it there.
     
  9. Rsjones

    Rsjones New Member

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    I have an 02 and I tried method one and it didn't work. However, it did work with a slight variation. You stated that the cycle should end in the accessory position but nothing on my instrument cluster lights in that position. So, I started in the OFF position and cycled three times to the ON position. Viola =D>
     
  10. MoladoGuy

    MoladoGuy Full Access Member

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    I found that I had error code P0137 which is not listed in the above list. Does anyone know where Bank 1 Sensor 2 is (fuses?)????

    P0137 HO2S Circuit Low Voltage Bank 1 Sensor 2

    I found a 2005 updated Chrysler list here:
    http://www.allpar.com/fix/computer-codes.html

    Hope this helps!!

    -Peace!
     
  11. rescuefish

    rescuefish New Member

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    code P0116 help?

    I've got an 04 Libby with 39,000 miles on it. Recently on a very hot day, I started my Jeep up and the check engine light came on. It gave me a code P0116 which is listed simply as a CTS in the Chilton's manual. I am assuming that this is basically the same as an ECT sensor, just called something different. Should I just drop a new one in, or are there some other tests I should do first? Is this common for the LIbby, and how much did you pay for the part?
     
  12. hyde

    hyde Moderator KJ Supporting Member

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    Thank you so much, I will try this tomorrow, first thing in the morning, I hope it works. Thanks!
     
  13. fouros

    fouros Full Access Member

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    well i got a code P0513 any ideas guys?????
     
  14. MoladoGuy

    MoladoGuy Full Access Member

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    P0513=Incorrect immobilizer key

    Have you had a key cut recently or maybe some type of alarm system?
     
  15. hyde

    hyde Moderator KJ Supporting Member

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    P0441 is still driving me crazy, it is going away and then coming back on after a while... I checked the hoses, I cannot see anything wrong visibly.
     
  16. pr0zak8

    pr0zak8 New Member

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    computer reset ...

    hi , i installed my dual intake system on my libby 3,7 this evenning , once i got back in the jeep my engine warning light came on , what i did before :
    took off all the original air intake systeme , unplugged the air sensor in the tube in front the trottle body . then took my dual intake , put it on the trottle body , took the air sensor off my original tube and installed it on my dual intake . tight everything in place , hook bak the connector to the sensor , then oups my engine light is on ...

    does anyone know how to reset it ? or how to make it unlight ?
    thanks
     
  17. dotcentral

    dotcentral New Member

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    YEs, I have the same question.
     
  18. fouros

    fouros Full Access Member

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    disconnect the battery and pump your brakes leave battery disconnected for 10 - 15 mins

    this will reset your CEL
     
  19. Dave

    Dave Administrator Administrator Moderator

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    fouros.......I didn't realize you needed to pump your brakes when you disconnected the battery. What does that do???

    Dave
     
  20. Marlon_JB2

    Marlon_JB2 Kombat Edition Jeep

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    Sounds like a precautionary measure to completely drain the electrical system of any remaining electricity.