Circuit Description
When the ignition switch turns I, the battery voltage is supplied to the valve coil through the terminal 15 of the electronic brake control module (EBCM) connector.
Conditions for Running the DTC
When the battery voltage, less than 9 volts, is supplied to the EBCM, this fault code happens.
Conditions for Setting the DTC
EBCM external fault
Action Taken When the DTC Sets
The warning lamp is ON.
This is a critical operational fault. The antilock brake system (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 voltage within the specified value? | 10.5-13.5 V | Go to Step 9 | Go to Step 2 |
2 | Is the voltage within the specified value? | 0.1-9 V | Go to Step 4 | Go to Step 3 |
3 | Is the voltage the specified value? | 0 V | Go to Step 5 | -- |
4 | Repair the fault of the low voltage. Is the repair complete? | -- | System OK | -- |
5 |
Is the fuse OK? | -- | Go to Step 7 | Go to Step 6 |
6 | Replace the fuse Ef4. Is the repair complete? | -- | System OK | -- |
7 |
Is the test light on? | -- | Go to Step 9 | Go to Step 8 |
8 | Repair the open between fuse Ef4 input and ignition switch IGN 1. Is the repair complete? | -- | System OK | -- |
9 | Replace the EBCM. Is the repair complete? | -- | System OK | -- |
