C1063

DTC C1063 (No.63): ABS Fail-Safe Relay Circuit

Wiring Diagram










DTC Detecting Condition

ABS control module monitors the voltage at the terminal of solenoid circuit constantly with ignition switch turned ON. Also, immediately after ignition switch is turned ON, perform initial check as follows.

Switch fail-safe relay in the order of OFF -> ON and check if voltage changes to Low -> High. If anything faulty is found in the initial check and when the voltage is low with ignition switch turned ON, this DTC will be set.

DTC Troubleshooting

1.
Check battery voltage.

Is it about 11 V or higher?
YES
Go to Step 2.
NO
Check charging system referring to Charging System Specifications.

2.
Check ABS main fuse and connection.

Is it in good condition?
YES
Go to Step 3.
NO
Repair and/or replace fuse.

3. Ignition switch OFF.
Disconnect ABS hydraulic unit/control module connector.
Check proper connection to ABS hydraulic unit/control module at terminal "E15-25".
If OK, then measure voltage between connector terminal "E15-25" and body ground.

Is it 10 - 14 V?
YES
Substitute a known-good ABS hydraulic unit/control module assembly and recheck.
NO
"WHT/BLU" circuit open or short to ground.