Dtc C1063 (No. 63): Abs Fail-Safe Relay Circuit - Suzuki Liana RH413 Service Manual

4E-30 ABS:

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

Wiring Diagram
[A]: ABS hydraulic unit / control module connector E15
1. Battery
2. Main fuse box
3. Ignition switch
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 (transistor) 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
Step
1 Was "ABS Check" performed?
2 Check battery voltage.
Is it about 11 V or higher?
3 Check ABS (60 A) main fuse and its terminal.
Is it in good condition?
4 1) Turn ignition switch to OFF position.
2) Disconnect ABS hydraulic unit / control module
connector.
3) Check for proper connection to ABS hydraulic unit /
control module at terminal "E15-14".
4) If OK, then measure voltage between connector terminal
"E15-14" and body ground.
Is it 10 – 14 V?
4. Circuit fuse box
5. Fail-safe relay (transistor)
6. ABS hydraulic unit / control module assembly
7. To solenoid valve
Action Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
Substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.
S3RH0A4504019
I3RH0A450007-01
8. ABS (10 A) fuse
9. ABS (60 A) fuse
No
Go to "ABS Check".
Check charging system
referring to "Battery
Inspection in Section
1J" and "Generator Test
(Undercharged Battery
Check) in Section 1J".
Replace fuse and check
for short circuit to
ground.
"WHT/BLU" circuit
imperfect short to
ground.