Possible Causes
WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| (K141) O2 SENSOR 1/2 SIGNAL CIRCUIT SHORTED TO GROUND |
| (K733) O2 SENSOR 1/2 PUMP CELL CURRENT TRIM CIRCUIT SHORTED TO GROUND |
| (K904) O2 SENSOR 1/2 RETURN CIRCUIT SHORTED TO GROUND |
| (K734) O2 SENSOR 1/2 POSITIVE CURRENT CONTROL CIRCUIT SHORTED TO GROUND |
| O2 SENSOR 1/2 |
| SMART O2 SENSOR MODULE |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L .
NOTE:
Before replacing any O2 Sensor or O2 Sensor Module, check aftertreatment wiring harness for spread terminals. For wiring harness checking procedure, DO NOT back probe, use Electric Terminal Tool Kit (special tool #8197A, Electric Terminal Tool Kit).