Suzuki Grand Vitara 1998, Service Manual

Page: 358 / 801

YH4
GRAND
VITARA
ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E1-17
1. ABS hydraulic
unit / control
module connector
TABLE – B “ABS” WARNING LAMP CIRCUIT CHECK – LAMP COMES “ON”
STEADY
Refer to TABLE – A for System Circuit Diagram and Circuit Description.
INSPECTION
STEP ACTION YES NO
1 Perform diagnostic trouble code check. Is there any DTC
(including code No.12, NO CODES on SUZUKI scan
tool) exists? Go to step 2. Go to step 3.
2 Is malfunction DTC (other than code No.12) exists at step
1? Go to step 7 of ABS
diagnostic flow table
in this section. Go to step 3.
3 1) Disconnect ABS hydraulic unit / control module
connector. (See Fig. 1)
2) Check for proper connection to ABS hydraulic
unit / control module connector at terminals “A17”,
“A25” and “A10”.
3) If OK, turn ignition switch “ON” and measure
voltage at terminal “A25” of connector.
Is it 10 – 14 V?
Go to step 4. “B / W” circuit open.
4 1) With ABS control module connector disconnected,
turn ignition switch ON and light ABS warning lamp.
2) Connect terminal “A17” of disconnected connector to
ground using service wire.
Does “ABS warning lamp” turn off?
Go to step 5. “Bl / O” circuit open.
If wire and
connection are OK,
replace ABS lamp
driver module.
5 1) Measure resistance from connector terminal “A10”
to body ground.
Is continuity indicated?
Substitute a
known-good ABS
hydraulic unit /
control module
assembly and
recheck. “B” circuit open.
Fig. 1