PRE-RELEASE
DTC C056E
| DTC C056E |
| 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 Descriptors |
DTC C056E 42
Electronic Control Unit Software Calibration Not Programmed
DTC C056E 45
Electronic Control Unit Software Variant Not Programmed
DTC C056E 4A
Electronic Control Unit Software Programming Checksum Error
DTC C056E 4B
Electronic Control Unit Software Calibration Not Learned
DTC C056E 5A
Electronic Control Unit Software Not Plausible
| Circuit/System Description |
The electronic brake control module (EBCM) must be configured with the security code, CAN configuration data and vehicle options. If not properly configured after installation, the EBCM may set a DTC.
The internal fault detection is handled inside the control module. No external circuits are involved.
| Conditions for Running the DTC |
Ignition ON
| Conditions for Setting the DTC |
The control module is not properly programmed.
| Action Taken When the DTC Sets |
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The ABS indicator turns ON.
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The electronic brake control module (EBCM) disconnects the traction control and stability control during the ignition cycle.
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| Conditions for Clearing the DTC |
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The DTC is cleared if a diagnostic test is run and passes.
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The DTC stored in the history is cleared after 40 consecutive fault-free ignition cycles have taken place.
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| Diagnostic Aids |
A newly replaced electronic brake control module (EBCM) can set one or more DTCs on its initial ignition ON cycle.
| Reference Information |
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
ABS 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 scan tool information
| Circuit/System Verification |
| 1. |
Ignition ON
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| 2. |
Verify that DTC C056E has not been generated.
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| 3. |
If the DTC C056E has been generated:
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| 3.1. |
Program K17 electronic brake control module.
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| 3.2. |
Confirm that the DTC is not generated after having run the vehicle over 40 km/h (25 mph).
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| 3.3. |
If a DTC is generated, replace K17 the electronic brake control module.
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| 3.4. |
If DTC is not generated:
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| 3.5. |
All OK.
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| 4. |
If DTC is not generated:
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| 5. |
All OK.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the repair.
Control Module References for replacement, programming and setup of the electronic brake control module.
