PRE-RELEASE
DTC C0131
| DTC C0131 |
| 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 C0131 00
Traction Control System Pressure Circuit Malfunction
DTC C0131 5A
Traction Control System Pressure Circuit Not Plausible
| Circuit/System Description |
The electronic brake control module monitors the brake pressure sensor, which is integrated in the unit with the brake pressure modulation valve. When the brake pedal is actuated, the body control module (BCM) sends a serial data message to the electronic brake control module (EBCM) concerning the brake pedal position. The EBCM compares the relationship between brake pedal position and the brake pressure recorded by the brake pressure sensor. This information is used to check the vehicle when electronic stability control takes place.
| Conditions for Running the DTC |
Ignition ON.
| Conditions for Setting the DTC |
C0131 00
The electronic brake control module detects that the brake pressure is not within the specified range.C0131 5A
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The electronic brake control module recorded an invalid or uneven brake pressure.
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The brake pressure sensor signal is not reasonable with regard to the acceleration/deceleration of the vehicle.
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The brake pressure sensor signal offset is out of specified range.
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| Action Taken When the DTC Sets |
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The traction control/stability control-active indicator turns ON.
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The electronic brake control module 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 in the history is cleared after 40 consecutive fault-free ignition cycles have taken place.
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| 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 |
| Note | ||
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Troubleshoot all other brake light-related DTCs or symptoms before starting this troubleshooting procedure. |
| 1. |
Ignition ON
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| 2. |
Confirm that DTC C0131 is not set.
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| 3. |
If this DTC is set:
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| 3.1. |
Execute
Brake pressure modulation valve pressure sensor, calibration
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| 3.2. |
Verify that the DTC is not set.
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| 3.3. |
If the DTC is set, replace Q5 brake pressure modulation valve.
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| 3.4. |
If the DTC is not set:
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| 3.5. |
All OK
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| 4. |
If the DTC is not set:
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| 5. |
All OK
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the repair.
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Brake Pressure Modulator Valve Replacement
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Control Module References
for replacement, programming and setup of the electronic brake control module.
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