Suzuki GA413, Service Manual

Page: 269 / 1246

ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E-15
TABLE – A “ABS” WARNING LAMP CIRCUIT CHECK – LAMP DOES NOT
COME “ON” AT IGNITION SWITCH ON
1. Main fuse
2. Ignition switch
3-1. Circuit fuse (for IG)
3-2. Circuit fuse (for ABS)
4.
“ABS” warning lamp in combination meter
5. Combination meter
6. ABS lamp driver module
7. ABS hydraulic unit / control module assembly
8. Fail-safe relay
9. To solenoid valves and pump motor relay
(ABS hydraulic unit)
10. Diagnosis connector
10-1. Diag. switch terminal
10-2. Diag. ground terminal
11.
ABS hydraulic unit/control module connector
of harness
CIRCUIT DESCRIPTION
Operation (ON / OFF) of “ABS” warning lamp is controlled by ABS control module.
If the Antilock brake system is in good condition, ABS control module turns “ABS” warning lamp ON at the ignition
switch ON, keeps it ON for 2 seconds only and then turns it OFF. If an abnormality in the system is detected, the
lamp is turned ON by ABS control module. Also, it is turned ON by ABS lamp driver module when the connector
of ABS control module was disconnected.
INSPECTION
STEP ACTION YES NO
1 1) Turn ignition switch ON.
Do other warning lamp come ON?
Go to step 2. Go to step 4.
2 1) Disconnect ABS hydraulic unit/control module
connector.
Does ABS warning lamp light with ignition switch ON?
Replace ABS hydraulic
unit/control module
assembly.
Go to step 3.
3 1) Remove combination meter.
Is bulb of ABS warning lamp in good condition?
“R/Bl” circuit shorted to
ground. If OK, replace
ABS lamp driver module.
Replace bulb.
4 Is IG fuse in good condition? Open in “B / W” wire to
combination meter or poor
connection.
Repair and replace.