Diagnostic Procedure

DTC 42 No.1 Vehicle Speed Sensor Signal Circuit
DIAGNOSTIC PROCEDURE

Diagram Of The No.1 Vehicle Speed Sensor Circuit:

1. CHECK VOLTAGE OF TERMINAL SP1.
- If OK Check and replace ECM.
- If not OK proceed to step 2.

2. CHECK OPERATION OF ODOMETER AND TRIP METER.
- If OK repair or replace harness or connector.
- If not OK proceed to Step 3.

3. CHECK OPERATION OF No.1 VEHICLE SPEED SENSOR.
- If OK repair or replace harness or connector.
- If not OK replace the sensor.