Suzuki SY413 Service Manual page 1813

DTC C1063 (DTC 63) – ABS FAIL-SAFE RELAY CIRCUIT
DESCRIPTION
The ABS control module monitors the voltage at the terminal of the solenoid circuit constantly with the ignition
switch turned ON. Also, immediately after the ignition switch is turned ON, perform an initial check as follows.
Switch the fail-safe relay in the order of ON ! OFF ! ON and check if the voltage at 6 solenoid circuit terminals
changes to High ! Low ! High. If anything faulty is found in the initial check and when the voltage at all solenoid
circuit terminals is low with the ignition switch turned ON and ABS not operated, this DTC will be set.
INSPECTION
STEP
1 Check battery voltage. Is it about 11 V or higher?
2 Check ABS main fuse and connection. Is it in good
condition?
3 1) Ignition switch OFF.
2) Disconnect ABS hydraulic unit / control module connector
(1). (See Fig. 1)
3) Check proper connection to ABS hydraulic unit / control
module at terminal "E116-2".
4) If OK, then measure voltage between connector terminal
"E116-2" and body ground.
Is it 10 – 14 V?
Fig. 1
ACTION
ANTILOCK BRAKE SYSTEM (ABS) 5B-29
- 1. Ignition switch
- 2. ABS hydraulic unit/
control module assembly
2-1. ABS fail-safe relay
(Solenoid valve relay)
- 3. ABS hydraulic unit/
control module connector
of harness
YES
Go to step 2. Check charging
system referring to
"CHARGING SYS-
TEM" section.
Go to step 3. Repair and / or re-
place fuse.
Substitute a "BLK/ RED" circuit
known-good ABS open or short to
hydraulic unit / con- ground.
trol module assem-
bly and recheck.
NO