P0835-CLUTCH PEDAL SWITCH "B" CIRCUIT HIGH

For a complete wiring diagram, refer to the Wiring Information.

When Monitored:
Engine running. Battery voltage greater than 10.4 Volts.
Set Condition:
The Powertrain Control Module (PCM) receives a signal from the Clutch Interlock Switch indicating that the clutch pedal is not depressed when the vehicle is started.

Possible Causes
(T26) CLUTCH UPSTOP SWITCH SIGNAL CIRCUIT SHORTED TO GROUND
CLUTCH INTERLOCK SWITCH
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

1. ACTIVE DTC

1.	Ignition on, engine not running.

2.	With a scan tool, monitor the Clutch Upstop Switch state while pressing and releasing the clutch pedal.

Does the clutch pedal state change when pressing and releasing the clutch pedal?

Yes

Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

Go To 2

2. CLUTCH INTERLOCK SWITCH

1.	Turn the ignition off.

2.	Disconnect the Clutch Interlock Switch harness connector.

NOTE: Check connectors - Clean/repair as necessary.

3.	Connect a jumper wire between the (Z905) Ground circuit and the (T26) Clutch Upstop Switch Signal circuit in the Clutch Interlock Switch harness connector.

4.	Turn the ignition on.

5.	Using the scan tool, monitor the Clutch Upstop status.

NOTE: The scan tool should display the Clutch Upstop Switch status as not pressed with the jumper wire in place and pressed with the jumper wire removed.

Does the scan tool display the status as described above?

Yes

Replace the Clutch Interlock Switch in accordance with the Service Information.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

Go To 3

3. CHECK THE (T26) CLUTCH UPSTOP SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND

1.	Turn the ignition off.

2.	Disconnect the PCM C1 harness connector.

3.	Measure the resistance between ground and the (T26) Clutch Upstop Switch Signal circuit in the Clutch Interlock Switch harness connector.

Is the resistance above 10K Ohms?

Yes

Go To 4

Repair the short to ground in the (T26) Clutch Upstop Switch Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

4. POWERTRAIN CONTROL MODULE (PCM)

1.	Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Clutch Interlock Switch and the Powertrain Control Module (PCM).

2.	Look for any chafed, pierced, pinched, or partially broken wires.

3.	Look for broken, bent, pushed out or corroded terminals.

4.	Verify that there is good pin to terminal contact in the Clutch Interlock Switch and PCM harness connectors.

5.	Perform any Technical Service Bulletins (TSBs) that may apply.

Were there any problems found?

Yes

Repair as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

Replace and program the Powertrain Control Module in accordance with the service information.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

P0835-CLUTCH PEDAL SWITCH "B" CIRCUIT HIGH

Possible Causes