PRE-RELEASE
DTC P0575
| DTC P0575 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptor |
DTC P0575
Cruise Control Switch Signal Message Counter Incorrect
| Circuit/System Description |
When a cruise control function switch is activated, the body control module (BCM) detects a predetermined voltage. The BCM sends a serial data message to the engine control module (ECM) indicating the function that has been requested.
| Conditions for Running the DTC |
The ignition is ON.
| Conditions for Setting the DTC |
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The ECM receives an invalid cruise control switch status serial data message from the BCM.
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This diagnostic runs continuously.
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| Action Taken When the DTC Sets |
DTC P0575 is a type C DTC.
| Conditions for Clearing the DTC |
DTC P0575 is a type C DTC.
| Reference Information |
Schematic Reference
Cruise Control Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Cruise Control Description and Operation
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
| 1. |
Verify that DTC B3794 is not set.
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| 2. |
If DTC is set, refer to
DTC B3794
.
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| 3. |
Road test the vehicle and attempt to engage cruise control. Verify that cruise control engages properly and the DTC P0575 is not set.
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| 4. |
If DTC is set, replace the K9 Body Control Module. Clear the DTC, road test the vehicle and attempt to engage cruise control. If the DTC resets, replace the K20 Engine Control Module.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for control module replacement, setup and programming
