For 1990-2009 cars

### Circuit Description

The clutch switch is a normally open switch with the clutch pedal released. The engine control module (ECM) detects an feed back voltage on the clutch switch circuit when the clutch switch is open. The ECM detects 0 volts on the clutch switch circuit when the clutch switch is closed as the clutch pedal depressed.

When the ECM detects the clutch pedal switch circuit is shorted to ground, DTC P0834 sets.

### DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0834 Clutch Pedal Switch Circuit Low Voltage

### Conditions for Setting the DTC

• | Ignition voltage is between 11 Volts and 16 Volts.

• | The ECM detects that the clutch pedal is depressed.

• | Vehicle speed is between 3 km/h (2 mph) and 52 km/h (32 mph).

• | The ECM detects no clutch switch transition.

### Action Taken When the DTC Sets

• | The ECM illuminates the malfunction indicator lamp (MIL).

• | The ECM records the operating conditions when the Conditions for Setting the DTC are met. The ECM stores this information in the Failure Records buffers.

• | The ECM stores DTC P0834 in ECM History.

### Conditions for Clearing the MIL/DTC

• | A scan tool can clear the MIL/DTC.

• | The ECM clears the DTC from ECM history if the vehicle completes 40 warm-up cycles without an emission-related diagnostic fault occurring.

• | Disconnect the ECM battery feed for more than 10 seconds.

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 |

1. Turn the ignition switch ON, Engine OFF.
2. Using a DMM, measure the voltage at the clutch pedal switch connector terminal 3.

Does the DMM indicate the specified value?

B+

Go to Step 3

Go to Step 4

3 |

1. Turn the engine OFF.
2. Disconnect the ECM connector.
3. Connect the test lamp to battery positive, then probe connector terminal C15.
4. Depress and release the clutch pedal while monitoring the test lamp.

Does the test lamp go ON and OFF?

--

Go to Step 9

Go to Step 5

Step 4 | Check the clutch pedal switch signal circuit for an open or high resistance. Is a repair necessary? | -- | Go to Step 7 | Go to Step 9
Step 5 | Check the clutch pedal switch signal circuit for a short to battery voltage or a short to ground. Is a repair necessary? | -- | Go to Step 7 | Go to Step 6
Step 6 | Check the clutch pedal switch signal circuit for an open. Is a repair necessary? | B+ | Go to Step 7 | Go to Step 8
Step 7 | Repair the circuit as necessary. Did you complete the repair? | -- | Go to Step 10 | --
Step 8 | Replace the clutch pedal switch. Did you complete the replacement? | -- | Go to Step 10 | --
Step 9 | Replace the ECM. Did you complete the replacement? | -- | Go to Step 10 | --
Step 10 |

1. Clear the DTCs using the scan tool.
2. Turn the ignition OFF for 30 seconds.
3. Start the engine.
4. Operate the vehicle within the conditions for setting the DTC.

Has the test run and passed?

--

Go to Step 11

Go to Step 2

Step 11 | Check if any additional DTCs are set. Does the scan tool display any DTCs that you have not diagnosed? | -- | Go to Diagnostic Trouble Code (DTC) List - Vehicle | System OK