PRE-RELEASE
DTC B0000, C0055, C0246, C1207-C1210, C1221-C1228, or C1232-C1235
| DTC B0000, C0055, C0246, C1207-C1210, C1221-C1228, or C1232-C1235 |
| 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 B0000 71
Vehicle Speed Information Circuit Invalid Data
DTC C0055 00
Invalid Data Received From Electronic Brake Control Module Malfunction
DTC C0246 00
Invalid Data Received From Electronic Brake Control Module Malfunction
DTC C1207 00
Left Front Wheel Speed Sensor Circuit High Input Malfunction
DTC C1208 00
Right Front Wheel Speed Sensor Circuit High Input Malfunction
DTC C1209 00
Left Rear Wheel Speed Sensor Circuit High Input Malfunction
DTC C1210 00
Right Rear Wheel Speed Sensor Circuit High Input Malfunction
DTC C1221 00
Left Front Wheel Speed Sensor Circuit Malfunction
DTC C1222 00
Right Front Wheel Speed Sensor Circuit Malfunction
DTC C1223 00
Left Rear Wheel Speed Sensor Circuit Malfunction
DTC C1224 00
Right Rear Wheel Speed Sensor Circuit Malfunction
DTC C1225 00
Left Front Wheel Speed Sensor Circuit Performance Malfunction
DTC C1226 00
Right Front Wheel Speed Sensor Circuit Malfunction
DTC C1227 00
Left Rear Wheel Speed Sensor Circuit Malfunction
DTC C1228 00
Right Rear Wheel Speed Sensor Circuit Malfunction
DTC C1232 00
Left Front Wheel Speed Sensor Circuit Low Input Malfunction
DTC C1233 00
Right Front Wheel Speed Sensor Circuit Low Input Malfunction
DTC C1234 00
Left Rear Wheel Speed Sensor Circuit Low Input Malfunction
DTC C1235 00
Right Rear Wheel Speed Sensor Circuit Low Input Malfunction
| 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. Some modules connected to the high speed CAN bus monitor for the wheel speed information. The DTC is set when the wheel speed information has not been received.
| Conditions for Running the DTC |
Ignition ON.
| 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 |
Specific subsystems will not function or operate in degraded mode.
| Conditions for Clearing the DTC |
A current DTC clears when the diagnostic runs and passes.
| 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 |
Ignition ON, observe the scan tool EBCM Wheel Speed Sensor parameters. The reading should be the same speed 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 EBCM.
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| 2. |
If any listed DTC is present, refer to
DTC C0035, C0040, C0045, or C0050
to diagnose that DTC prior to this diagnostic.
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| 3. |
Replace the K17 Electronic Brake Control Module and verify the DTC does not reset.
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| 4. |
If the DTC resets, replace the module that set the DTC.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for module replacement, setup and programming
