Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptor
DTC C0236 00: Traction Control System (TCS) Engine RPM Signal CircuitDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
EBCM Speed Signal Circuit | C0236 00 | C0236 00 | -- | -- |
Circuit/System Description
The RPM signal circuit provides the EBCM with an indication of engine RPM for the TCS to maintain optimum traction.
Conditions for Running the DTC
| • | Engine Running. |
| • | No under voltage condition is present. |
Conditions for Setting the DTC
An open/high resistance, or short to ground on the engine speed signal circuit.
Action Taken When the DTC Sets
| • | The EBCM disables the traction control system (TCS) for the duration of the ignition. |
| • | A DIC message and/or a warning indicator may be displayed. |
Conditions for Clearing the DTC
| • | The condition for the DTC is no longer present in the last 100 ignition cycles and no DTCS have been detected. |
| • | The condition for the DTC is no longer present. |
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Engine Running, with the scan tool observe the EBCM Engine Speed parameter and the ECM/PCM Engine Speed parameter. The reading should increase and decrease when pressing and releasing the accelerator pedal.
Circuit/System Testing
- Ignition OFF, disconnect the X1 harness connector at the EBCM.
- Ignition ON, test for B+ between the appropriate signal circuit listed below terminal 11 and ground.
- Replace the EBCM.
| • | Signal circuit terminal 7 (JL4) |
| • | Signal circuit terminal 11 (-JL4) |
| ⇒ | If less than the specified value, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the ECM/PCM. |
Repair Instructions
Control Module References for EBCM, PCM, or ECM replacement, setup, and programming
Control Module Referencesfor EBCM, PCM, or ECM replacement, setup, and programming
