Suzuki GA413 Service Manual page 281

DTC 63 – ABS FAIL-SAFE RELAY CIRCUIT
DESCRIPTION
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 ON ! OFF ! ON and check if voltage at 3 solenoid circuit terminals changes
to High ! Low ! High. If anything faulty is found in the initial check and when voltage at all solenoid circuit terminals
is low with 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
2
ACTION
1. ABS hydraulic
unit / control
module connector
ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E-27
1. Ignition switch
2. ABS hydraulic unit/control module assembly
3. ABS hydraulic unit/control module connector of harness
YES
Go to step 2.
Go to step 3.
Substitute a known-
good ABS hydraulic
unit/ control module
assembly and recheck.
NO
Check charging
system referring to
"CHARGING
SYSTEM" section.
Repair and / or
replace fuse.
"W / Bl" circuit open
or short to ground.