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.
• | The ignition is ON. |
• | The vehicle speed is greater than 20 km/h (13 mph). |
The EBCM detects low ignition voltage for greater than 224 milliseconds.
If equipped, the following actions occur.
• | The EBCM disables ABS/TCS. |
• | The ABS indicator turns ON. |
• | The traction off indicator turns ON. |
The conditions for setting the DTC are no longer present and you use the scan tool Clear DTCs function.
Several charging system related malfunctions may cause this DTC to set intermittently. Refer to the Engine Electrical section for further diagnostic aids.
The numbers below refer to the step numbers on the diagnostic table.
Step | Action | Values | 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 |
Does the resistance measure within the specified range? | 0-0.2ohms | Go to Step 5 | Go to Step 4 | |
4 | Repair the high resistance in the igniton 1 voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 7 | -- |
5 | Inspect for poor connections at the harness connector of the EBCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 7 | Go to Step 6 |
6 |
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 7 | -- |
7 |
Does the DTC reset? | -- | Go to Step 3 | System OK |