hello, new member kristie. Needing help for a 2007 jeep liberty code c121c
any help would be great..
Hello Kristie
Code C121C ??
Are you sure on that code ?
How did you come up with it?
The only thing I came up with is this
C121C-TORQUE REQUEST SIGNAL DENIED
For a complete wiring diagram Refer to Section 8W.
When Monitored:
With the engine running.
Set Condition:
When the Powertrain Control Module indicates, for an extended period of time, that engine management relevant for Automatic Yaw Control/Traction Control System control can not be accomplished.
Possible Causes
ANTI-LOCK BRAKE MODULE
POWERTRAIN CONTROL MODULE
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Diagnostic Test
1. CHECK FOR A DTC C121C-TORQUE REQUEST SIGNAL DENIED
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NOTE: This DTC must be active for the results of this test to be valid and this DTC may set while driving under severe load conditions.
Turn the ignition on.
With the scan tool, read and record DTCs.
With the scan tool, read and record Freeze Frame information.
With the scan tool, erase DTCs.
Cycle the ignition switch from off to on.
Start Engine.
With the scan tool, read and record DTCs and monitor ESP Torque Request status.
Does the scan tool display: C121C-TORQUE REQUEST SIGNAL DENIED?
Yes
Go To 2
No
Refer to the INTERMITTENT CONDITION diagnostic procedure. (Refer to 5 - BRAKES - DIAGNOSIS AND TESTING)
2. CHECK THE POWERTRAIN DTCS
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With the scan tool, read and record Powertrain DTCs.
Were any Powertrain related DTCs found?
Yes
Repair the Powertrain System in accordance with the Service Information.
No
Go To 3
3. ESP TORQUE REQUEST SIGNAL
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Engine started.
With the scan tool, read the Allow ESP Torque Request status bit.
Was the Allow ESP Torque Request showing NOT set?
Yes
Replace the Powertrain Module in accordance with the Service Information.
No
Replace the Anti-Lock Brake Module in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).