Circuit Description
The clutch switch is a normally closed switch, clutch pedal released. The engine control module (ECM) detects an ignition voltage on the clutch switch circuit when the clutch switch is closed. The ECM detects 0 volts on the clutch switch circuit when the clutch switch is open, clutch pedal depressed.
When the ECM detects a large number of gear changes without detecting a clutch switch transition, DTC P0833 sets. DTC P0833 is a type B DTC.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P0833 Clutch Pedal Switch 2 Circuit
Conditions for Running the DTC
| • | No VSS DTCs P0721 or P0722. |
| • | The vehicle speed is greater than 15 km/h (9 mph). |
| • | The brake switch remains released. |
Conditions for Setting the DTC
| • | The ECM must detect 20 or more gear changes. |
| • | Time between gear changes must be 4 seconds or greater. |
Action Taken When the DTC Sets
| • | The ECM illuminates the malfunction indicator lamp (MIL) during the second consecutive trip in which the Conditions for Setting the DTC are met. |
| • | The ECM disables Cruise Control. |
| • | The ECM records the operating conditions when the Conditions for Setting the DTC are met. The ECM stores this information as Freeze Frame and Failure Records. |
| • | The ECM stores DTC P0833 in ECM History during the second consecutive trip in which the Conditions for Setting the DTC are met. |
Conditions for Clearing the MIL/DTC
| • | The ECM turns OFF the MIL during the third consecutive trip in which the diagnostic runs and passes. |
| • | 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. |
| • | The ECM cancels the DTC default actions when the ignition switch is OFF long enough in order to power down the ECM. |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
-
This test confirms if the scan tool is receiving a clutch switch position signal.
-
This step inspects the clutch pedal connector and adjustment.
Step | Action | Values | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |
Important: Before clearing the DTCs, use the scan tool in order to record the Freeze Frame and Failure Records for reference. Using the Clear Info function erases the Freeze Frame and Failure Records from the ECM. Does the scan tool indicate a change in state when the clutch pedal is either applied or released? | -- | Refer to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 | |
Inspect the clutch pedal position switch and the connector. Does the clutch switch or the connector require service? | -- | Go to Step 11 | Go to Step 4 | |
4 | Inspect the HTR VLV/CLTCH fuse for an open. Refer to Circuit Protection - Fuses . Is the HTR VLV/CLTCH fuse open? | -- | Go to Step 9 | Go to Step 5 |
5 | Using a DMM, measure voltage at the HTR VLV/CLTCH fuse. Does the DMM indicate the specified value? | B+ | Go to Step 6 | Go to Step 12 |
6 |
Does the DMM indicate the specified value? | B+ | Go to Step 7 | Go to Step 13 |
7 |
Does the scan tool display that the clutch is applying and releasing? | -- | Go to Step 15 | Go to Step 8 |
8 |
Did you find a short to voltage, high resistance or an open on the clutch pedal position switch signal circuit? | -- | Go to Step 14 | Go to Step 16 |
9 |
Is the ignition 1 voltage circuit grounded? | -- | Go to Step 13 | Go to Step 10 |
10 | Using a DMM, test for a short to ground on the clutch pedal position switch signal circuit at the switch connector. Is the clutch pedal position switch signal circuit grounded? | -- | Go to Step 14 | Go to Step 15 |
11 | Replace the clutch pedal position switch, or repair the connector, as necessary. Refer to Clutch Pedal Position Switch Replacement or Connector Repairs . Did you complete the repair? | -- | Go to Step 17 | -- |
12 | Repair the power distribution circuit to the HTR VLV/CLTCH fuse. Did you complete the repair? | -- | Go to Step 17 | -- |
13 | Repair the open, high resistance, or short to ground in the ignition 1 voltage circuit or a parallel circuit that uses the brake fuse. Refer to Wiring Repairs . Did you complete the repair? | -- | Go to Step 17 | -- |
14 | Repair the open, high resistance, short to ground, or short to voltage in the clutch pedal position switch signal circuit. Refer to Wiring Repairs . Did you complete the repair? | -- | Go to Step 17 | -- |
15 | Replace the clutch pedal position switch. Refer to Clutch Pedal Position Switch Replacement . Is the action complete? | -- | Go to Step 17 | -- |
16 | Replace the ECM. Refer to Control Module References for replacement, setup, and programming. Is the action complete? | -- | Go to Step 17 | -- |
17 |
Has the test run and passed? | -- | Go to Step 18 | Go to Step 2 |
18 | With the scan tool, observe the stored information, capture info and DTC info. Does the scan tool display any DTCs that you have not diagnosed? | -- | System OK |
