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 P0567: Cruise Control Resume Switch CircuitDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
B+ | 1 | 1 | -- | -- |
Cruise Control ON Switch Signal | 1 | 1 | -- | -- |
Cruise Control Resume/Accel Switch Signal | 1 | 2 | P0567 | -- |
Cruise Control Set/Coast Switch Signal | 1 | 1 | P0568 | -- |
Cruise Control Switch Ground | -- | 1 | -- | -- |
1. Cruise Control Malfunction 2. Cruise Control Resume/Accel Malfunction | ||||
Circuit Description
The cruise control resume/accel switch is an input to the engine control module (ECM). The ECM monitors the cruise control resume/accel switch signal circuit in order to detect when the driver has requested to accelerate the set vehicle speed or to resume the cruise control system. The ECM module detects a voltage signal on the cruise control resume/accel switch signal circuit when the switch is applied. This DTC sets if the ECM detects that voltage is present on the cruise control resume/accel switch signal circuit for longer than 60 seconds.
Conditions for Running the DTC
| • | The ignition is ON. |
| • | The cruise control switch is ON. |
Conditions for Setting the DTC
The ECM detects that the resume/accel switch circuit is active for longer than 60 seconds.
Actions Taken When the DTC Sets
| • | The malfunction indicator lamp (MIL) will not illuminate. |
| • | The cruise control system is disabled. |
Conditions for Clearing the DTC
| • | The condition responsible for setting the DTC no longer exists. |
| • | A history DTC will clear after 40 malfunction-free ignition cycles have occurred. |
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Cruise Control Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Engine ON, observe the scan tool Cruise Control Switch parameter while pressing each of the cruise control switches. The parameter should toggle between ON, OFF, Resume, Set, as the applicable switch is pressed.
Circuit/System Testing
- Ignition OFF, disconnect the X2 harness connector at the turn signal/multifunction switch.
- Ignition ON, verify the scan tool Resume/Accel. Switch parameter displays Inactive.
- If all circuits test normal, test or replace the turn signal/multifunction switch.
| ⇒ | If the parameter displays Active, test the signal circuit terminal 28 for a short to voltage. If the circuit tests normal, replace the ECM module. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for ECM replacement, setup, and programming |
