Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2006 >> Liberty Renegade, 4WD, Part Time, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 3.7L Engine - DTCS P0122 To P0175 >> Diagnosis And Testing >> P0137-O2 Sensor 1/2 Circuit Low >> Possible Causes

Possible Causes

Possible Causes 
(K904) O2 DOWNSTREAM RETURN CIRCUIT SHORTED TO GROUND
(K141) O2 1/2 SIGNAL CIRCUIT SHORTED TO GROUND
(K141) O2 1/2 SIGNAL CIRCUIT SHORTED TO THE (K904) O2 DOWNSTREAM RETURN CIRCUIT
(K141) O2 1/2 SIGNAL CIRCUIT SHORTED TO THE (Z42) O2 1/2 HEATER GROUND CIRCUIT
O2 SENSOR
PCM

Always perform the  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  before proceeding. 

scientia non olet · About Mike's Workshop Manuals