Possible Causes
| Possible Causes |
|---|
| INTERMITTENT DTC |
| EXHAUST LEAK |
| (K141) O2 1/2 SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| (K904) O2 RETURN (DOWN) CIRCUIT SHORTED TO VOLTAGE |
| (K141) O2 1/2 SIGNAL CIRCUIT SHORTED TO GROUND |
| (K904) O2 RETURN (DOWN) CIRCUIT SHORTED TO GROUND |
| (K141) O2 1/2 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| (K904) O2 RETURN (DOWN) CIRCUIT OPEN OR HIGH RESISTANCE |
| 1/2 O2 SENSOR |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.