Suzuki WagonR+ RB310 Service Manual page 1300

Table – A ABS Warning Lamp Circuit Check – Lamp Does Not Come "ON" at
Ignition Switch ON
1. Main fuse
2. Ignition switch
3. Circuit fuse
4. Combination meter
CIRCUIT DESCRIPTION
Operation (ON/OFF) of ABS warning lamp is controlled by ABS control module through lamp driver module in
combination meter.
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 and then turns it OFF. If an abnormality in the system is detected, ABS
warning lamp is turned ON continuously by ABS control module. Also, it is turned ON continuously by lamp
driver module when the connector of ABS control module is disconnected.
INSPECTION
Step
1 1) Turn ignition switch ON.
Do other warning lamp come ON?
2 1) Disconnect ABS hydraulic unit/control mod-
ule connector.
Does ABS warning lamp light with ignition
switch ON?
3 1) Remove combination meter.
Is bulb of ABS warning lamp in good condition?
4 Is IG fuse in good condition?
5. ABS warning lamp
6. Brake warning lamp
7. Lamp driver module
8. Parking brake switch
Action
ANTILOCK BRAKE SYSTEM (ABS) 5E-9
9. Brake fluid level switch
10. ABS hydraulic unit/control module assembly
11. ABS hydraulic unit/control module connector
Yes
Go to Step 2.
Substitute a known-good ABS
hydraulic unit/control module
assembly and recheck.
"R/Bl" circuit shorted to ground.
If OK, replace combination
meter (lamp driver module).
Open in "B/W" wire to combina-
tion meter or poor connection.
No
Go to Step 4.
Go to Step 3.
Replace bulb.
Repair and replace.