Rough Road Sensor: Testing and Inspection

ACCELERATION SENSOR
The acceleration sensor is attached in the engine compartment on the driver's side. While driving, the rough road condition is sensed by the acceleration sensor and the ECM uses this input signal to avoid the wrong misfire detection.




CIRCUIT DIAGRAM







HARNESS INSPECTION PROCEDURES




P1605, P1606 - TROUBLESHOOTING PROCEDURES

HINT: When abnormal output voltage occurs at stop position of vehicle or acceleration sensor is operated beyond normal operating zone.




USING VOLTMETER