DTC P128A: Cylinder Head Temperature (CHT) Sensor Circuit Intermittent/Erratic
P128A - CYLINDER HEAD TEMPERATURE (CHT) SENSOR CIRCUIT INTERMITTENT/ERRATIC
| Description: Indicates the CHT circuit became intermittently open or short while the engine was running. | |||
Possible Causes:
|
|||
| Diagnostic Aids: Monitor the CHT PID on a scan tool. Look for sudden changes in the reading when the harness is wiggled or the sensor is tapped. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DL . | ||