The engine control module (ECM) supplies a 5 volts to the Clutch Switch Circuit. This circuit ensures the engine can only be started when the clutch pedal is fully depressed. When the pedal is full depressed the circuit is earthed through the switch circuit.

The ECM detects that 15 gear changes have been performed with less than 3 clutch pedal switch inputs.

DTC P0704 is a type C DTC.

DTC P0704 is a type C DTC.

Schematic Reference

Starting and Charging Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, While observing the scan tool depress and release the clutch pedal, the scan tool display display should toggle between Inactive to Active when the pedal is depressed.

1. Ignition OFF, disconnect the Clutch pedal switch at the switch.
2. Ignition ON, verify that a test lamp illuminate between the signal terminal and a known ground.

⇒	If the test lamp does not illuminates, test the signal circuit for a short to ground or an open/high resistance. If circuit tests normal replace the ECM.

3. Connect a 10A fusible link wire between the signal circuit and the earth terminal at the wiring harness connection.

⇒	observe the scan tool active should be displayed.

⇒	If the display still reads inactive, test the earth circuit for a short to ground or an open/high resistance.

4. If all circuits test normal replace the clutch switch.

Replace the clutch switch refer to Clutch Pedal Position Switch Replacement

Perform the Diagnostic Repair Verification.

Ignition ON, While observing the scan tool depress and release the clutch pedal, the scan tool display display should toggle between Inactive to Active when the pedal is depressed.