Possible Causes
| Possible Causes |
|---|
| EXHAUST LEAK |
| (K141) O2 1/2 SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE |
| (K904) O2 RETURN (DOWN) CIRCUIT FOR A SHORT TO VOLTAGE |
| (K141) O2 1/2 SIGNAL CIRCUIT FOR A SHORT TO GROUND |
| (K904) O2 RETURN (DOWN) CIRCUIT FOR A SHORT TO GROUND |
| (K141) O2 1/2 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| (K904) O2 RETURN (DOWN) CIRCUIT OPEN OR HIGH RESISTANCE |
| 1/2 OXYGEN SENSOR |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .