Circuit Description
The electronic brake control module (EBCM) proceeds the self-test about the dump valve or the motor driver, if the EBCM senses the brake signal.
Conditions for Running the DTC
If the EBCM proceeds the self-test about the dump valve or the motor driver and senses the fault, the EBCM may make the fault code.
Conditions for Setting the DTC
EBCM internal fault -- Left rear isolation voltage open or ground shorted
Action Taken When the DTC Sets
| • | Antilock brake system (ABS) warning lamp ON |
| • | ABS warning lamp OFF if the ignition switch ON/OFF |
This is a critical operational fault. The ABS is disabled and the ABS warning lamp is turned ON. The proportioning is operation.
Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Antilock Brake System Schematics Connector End View Reference: Antilock Brake System Connector End Views | ||||
1 |
Is the fuse open? | -- | Go to Step 3 | Go to Step 2 |
2 | Replace the fuse Ef1. Is the repair complete? | -- | System OK | -- |
3 |
Is the voltage within the specified value? | 10.5-13.5 V | Go to Step 5 | Go to Step 4 |
4 | Repair the short to voltage between terminal 18 of the EBCM connector and engine fuse block Ef1 output. Is the repair complete? | -- | System OK | -- |
5 | Use a DVM to measure the voltage between terminal 18 and terminal 19 of the EBCM connector. Is the voltage within the specified value? | 10.5-13.5 V | Go to Step 7 | Go to Step 6 |
6 | Repair the open between terminal 19 of the EBCM connector and ground G101. Is the repair complete? | -- | System OK | -- |
7 | Replace the EBCM. Is the repair complete? | -- | System OK | -- |
