Dtc 63 - Abs Fail-Safe Relay Circuit - Suzuki sq-416-420-625 Service Manual

DTC 63 (DTC C1063) – 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. (See Fig. 1)
3) Check proper connection to ABS hydraulic unit/
control module at terminal "A11".
4) If OK, then measure voltage between connector
terminal "A11", and body ground.
Is it 10 – 14 V?
Fig. 1
1. ABS hydraulic
unit / control
module connector
2
ACTION
ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E1-29
1. Ignition switch
2. ABS hydraulic unit/
3. ABS hydraulic unit/
YES
Go to step 2.
Go to step 3.
Substitute a
known-good ABS
hydraulic unit/
control module
assembly and
recheck.
control module assembly
control module connector
of harness
NO
Check charging
system referring
to "CHARGING
SYSTEM" section.
Repair and/or
replace fuse.
"W/Bl" circuit open
or short to ground.