GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC P0833: Clutch Pedal Switch 2 Circuit

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

CPP Switch Signal

P0833

P0833

--

P0833

Circuit/System Description

The clutch switch is a normally closed switch, clutch pedal released. The powertrain control module (PCM) detects an ignition voltage on the clutch switch circuit when the clutch switch is closed. The PCM detects 0 volts on the clutch switch circuit when the clutch switch is open, clutch pedal depressed.

Conditions for Running the DTC

DTC P0500 is not set.

Conditions for Setting the DTC

The PCM detects 7 changes in vehicle speed greater than 38 km/h (24 mph) without the PCM detecting a clutch pedal transition.

Action Taken When the DTC Sets

    • DTC P0833 is a Type B DTC.
    • The PCM disables cruise control.
    • The PCM disables power take-off.

Conditions for Clearing the DTC

DTC P0833 is a Type B DTC.

Reference Information

Schematic Reference

Manual Transmission Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Transmission System Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References

Circuit/System Verification

Ignition ON, observe the scan tool CPP Switch parameter while applying and releasing the clutch pedal. The reading should change between applied and released.

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the CPP switch.
  2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal B and ground.
  3. If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the fuse is open, test the ignition circuit for a short to ground.
  4. Verify the scan tool CPP Switch parameter is applied.
  5. If not the specified value, test the signal circuit terminal A for a short to voltage. If the circuit tests normal, replace the PCM.
  6. Install a 3A fused jumper wire between the CPP signal circuit terminal A and the ignition circuit terminal B. Verify the scan tool CPP switch parameter is released.
  7. If not the specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the PCM.
  8. If all circuits test normal, test or replace the CPP switch.

Component Testing

  1. Ignition OFF, disconnect the harness connector at the CPP switch.
  2. Test for infinite resistance between the CPP signal terminal A and the ignition circuit terminal B with the switch in the open position, clutch pedal applied.
  3. If not the specified value, replace the CPP switch.
  4. Test for less than 1 ohm of resistance between the CPP signal terminal A and the ignition circuit terminal B with the switch in the closed position, clutch pedal released.
  5. If greater than the specified range, replace the CPP switch.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

    •  Clutch Pedal Position Switch Replacement
    •  Control Module References for PCM replacement, setup and programming