lemon-mirror:
Home >> Chrysler >> 2007 >> PT Cruiser Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0129 To P0339 >> P0137-O2 Sensor 1/2 Circuit Low >> Possible Causes

Possible Causes

Possible Causes 
(K902) O2 DOWNSTREAM RETURN CIRCUIT SHORTED TO GROUND
(K141) O2 1/2 SIGNAL CIRCUIT SHORTED TO GROUND
(K141) O2 1/2 SIGNAL CIRCUIT SHORTED TO (K902) O2 DOWNSTREAM RETURN CIRCUIT
(K141) O2 1/2 SIGNAL SHORTED TO THE (Z902) O2 1/2 HEATER GROUND CIRCUIT
O2 SENSOR
PCM

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

· About lemon-mirror