Dorinsky
New Member
No oxygen sensor heater power PLEASE HELP
I have an 04 jeep liberty with a 3.7 engine, check engine light on, had codes for 02 sensor failures, replaced O2 sensors an cleared the codes, road test check engine light back on. this time got a code for O2 heater failure. check for power at each O2 sensor heater circuit and I have none on all 4. can someone please tell me where the oxygen sensor heaters get their power, can't seem to find a wiring diagram that shows the whole circuit.. Somebody please help, i'm in school and don't have the $ to bring to a dealer. Thank you for helping
I have an 04 jeep liberty with a 3.7 engine, check engine light on, had codes for 02 sensor failures, replaced O2 sensors an cleared the codes, road test check engine light back on. this time got a code for O2 heater failure. check for power at each O2 sensor heater circuit and I have none on all 4. can someone please tell me where the oxygen sensor heaters get their power, can't seem to find a wiring diagram that shows the whole circuit.. Somebody please help, i'm in school and don't have the $ to bring to a dealer. Thank you for helping
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