PRE-RELEASE
DTC C0000
| DTC C0000 |
| 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 C0000 71
Vehicle Speed Information Circuit Invalid Data
| Circuit/System Description |
The wheel speeds are detected by active wheel speed sensors. Each wheel speed sensor receives a 12 V reference voltage from the electronic brake control module (EBCM) and provides an alternating current square wave signal to the EBCM. As the wheel spins, the EBCM uses the frequency of the square wave signal to calculate the wheel speed. The EBCM sends the wheel speed information as a high speed controller area network (CAN) serial data message. Modules connected to the high speed CAN circuit monitor for the vehicle speed information.
| Conditions for Running the DTC |
System voltage is between 9-16 V.
| Conditions for Setting the DTC |
A supervised periodic message that includes the wheel speed serial data has not been received.
| Action Taken When the DTC Sets |
The electronic suspension control is disabled for the duration of the ignition cycle.
| Conditions for Clearing the DTC |
A current DTC clears when the diagnostic runs and passes.
| Reference Information |
Schematic Reference
Electronic Suspension Control Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Electronic Suspension 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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Scan Tool Reference
Control module, references for diagnostic tool information
| Circuit/System Verification |
Ignition ON, observe the scan tool EBCM Wheel Speed Sensor parameters. The parameters displayed should be within 1.6 km/h (1 mph) on all sensors when driving in a straight line at a speed greater than 20 km/h (13 mph).
| Circuit/System Testing |
| 1. |
Ignition ON, verify that DTC C0035, C0040, C0045, or C0050 is not present in the K17 electronic brake control module (EBCM).
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| 2. |
If any listed DTC is present, refer to
Diagnostic Trouble Code (DTC) List - Vehicle
.
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| 3. |
Replace the K19 Suspension Control Module and verify the DTC does not reset.
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| 4. |
If the DTC resets, replace the K17 electronic brake control module (EBCM).
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for module replacement, programming and setup.
