Inspection Procedure

DTC 42 No.1 Vehicle Speed Sensor Signal Circuit
WIRING DIAGRAM

Diagram Of The No.1 Vehicle Speed Sensor Circuit:

INSPECTION PROCEDURE



1. CHECK VOLTAGE BETWEEN TERMINAL SP1 OF ENGINE CONTROL MODULE CONNECTOR AND BODY GROUND.
- Shift the shift lever to "N" or neutral position.
- Jack up a rear wheel on one side.
- Connect the Check Harness A.
- Disconnect power steering ECU connector and cruise control ECU connector.
- Turn ignition switch ON.



- Measure voltage between terminal SP1 of ECM connector and body ground when the wheel is turned slowly.



OK if a pulsed voltage is generated.
- 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 between the ECM and the malfunction indicator lamp (MIL) in the instrument cluster.
- If not OK proceed to Step 3.

3. CHECK OPERATION OF No.1 SPEED SENSOR AT THE SENSOR CONNECTOR.
- If OK repair or replace harness or connector between the No.1 vehicle speed sensor and the MIL (instrument cluster).
- If not OK replace the sensor.