Circuit Description
The EBCM is wired to the ignition 1 voltage circuit to indicate the ignition ON/OFF state. The EBCM monitors this voltage to ensure the voltage remains within an acceptable operating range.
Conditions for Running the DTC
| • | The ignition is ON. |
| • | The vehicle speed is greater than 20 km/h (13 mph). |
Conditions for Setting the DTC
The EBCM samples the ignition voltage every 7 milliseconds. When ignition voltage is detected as too high, this DTC sets immediately.
Action Taken When the DTC Sets
If equipped, the following actions occur.
| • | The EBCM disables ABS/TCS. |
| • | The ABS indicator turns ON. |
| • | The traction off indicator turns ON. |
Conditions for Clearing the DTC
The conditions for setting the DTC are no longer present and you use the scan tool Clear DTCs function.
Diagnostic Aids
Several charging system related malfunctions may cause this DTC to set intermittently. Refer to the Engine Electrical section for further diagnostic aids.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Antilock Brake System Schematics | |||
1 | Did you perform the ABS Diagnostic System Check? | Go to Step 2 | |
2 |
Does the DTC set? | Go to Step 3 | Go to Diagnostic Aids |
3 |
Important: Following EBCM replacement, use the scan tool to perform the Tire Size/Wheel Base Calibration procedure. Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Did you complete the replacement? | Go to Step 4 | -- |
4 |
Does the DTC reset? | Go to Step 3 | System OK |
