Scantool Diagnostics
Engine Control
P0642 Sensor Reference Voltage - Scantool Diagnostics
Monitor GDS Data
1. Connect GDS to Data Link Connector(DLC).
2. Warm up the engine to normal operating temperature.
3. Monitor the "A/C Refrigerant Pressure Sensor,Power Steering Pressure Sensor,Fuel Tank Pressure Sensor" parameters on the GDS.
4. Is parameter displayed within specifications?