Pinpoint Test D: The Cruise Control Does Not Disengage When The Clutch Is Applied

Cruise Control

Pinpoint Test D: The Cruise Control Does Not Disengage When The Clutch Is Applied

Refer to Wiring Diagram Set 31, Speed Control for schematic and connector information. [1][2]Diagrams By Number

Normal Operation

Vehicles equipped with a manual transaxle have an additional clutch pedal cruise control deactivator switch. The PCM receives a ground signal through the normally closed clutch pedal cruise control deactivator switch. When the clutch pedal is applied, the clutch pedal cruise control deactivator switch opens and removes the ground signal to the PCM disengaging the cruise control.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- Clutch pedal cruise control deactivator switch

- PCM

PINPOINT TEST D : THE CRUISE CONTROL DOES NOT DISENGAGE WHEN THE CLUTCH IS APPLIED

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

D1 CHECK THE CPP (Clutch Pedal Position) SWITCH (CPP_TOP) PID

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: PCM DataLogger.

- While applying and releasing the clutch pedal monitor the PCM PID (CPP_TOP).

Does the PID value read NO with the clutch pedal released and YES with the clutch pedal applied?

Yes
GO to D4.

No
GO to D2.

D2 CHECK THE CLUTCH PEDAL CRUISE CONTROL DEACTIVATOR SWITCH GROUND CIRCUIT FOR A SHORT TO GROUND

- Disconnect: Clutch Pedal Cruise Control Deactivator Switch C2070.

- Disconnect: PCM C175B.

- Measure the resistance between the clutch pedal cruise control deactivator switch C2070-4, circuit CE904 (GN/VT), harness side and ground.





Is the resistance greater than 10,000 ohms?

Yes
INSTALL a new clutch pedal cruise control deactivator switch. REFER to Cruise Control Deactivator Switch . TEST the system for normal operation.

No
REPAIR the circuit. TEST the system for normal operation.

D4 CHECK FOR CORRECT PCM OPERATION

- Disconnect all the PCM connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the PCM connectors and make sure they seat correctly.

- Operate the system and verify the concern is still present.

Is the concern still present?

Yes
INSTALL a new PCM. TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.