With GST
- Turn ignition switch ON.
- Check voltage between ECM terminal 102 (PNP switch signal) and ground under the conditions listed in ECM TERMINAL 102 VOLTAGE SPECIFICATION .ECM TERMINAL 102 VOLTAGE SPECIFICATION
Condition (Gear position) Voltage V (Known-good data) P or N position Approx. 0 Except above position BATTERY VOLTAGE (11 - 14V) - If NG, go to DIAGNOSTIC PROCEDURE .