Monitor GDS Data
- Connect GDS to Data Link Connector(DLC).
- Engine start.
- Monitor the "Engine speed" parameters on the GDS.
- Are the parameters displayed correctly?
YES
Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connect
NO
Go to "TERMINAL & CONNECTOR INSPECTION " procedure.