Suzuki GRAND VITARA Owner's Manual page 840

4E-14 ABS:
Troubleshooting
Step
1 1) Perform diagnostic trouble code check.
Is there any DTC(s)?
2 Are main fuses for ABS pump motor and ABS solenoid in
good condition?
3 1) Turn ignition switch to OFF.
2) Disconnect ABS hydraulic unit / control module
connector.
3) Check for proper connection to ABS hydraulic unit /
control module connector at terminals "E03-7", "E03-13"
and "E03-17".
4) If OK then turn ignition switch to ON position and
measure voltage between terminal "E03-7" and vehicle
body ground.
Is it 10 – 14 V?
4 1) Turn ignition switch to OFF position.
2) Check for proper connection to ABS hydraulic unit /
control module connector at terminals "E03-1" and "E03-
14".
3) If OK then turn ignition switch to ON position and
measure voltage between each terminal of "E03-1",
"E03-14" and vehicle body ground.
Are they 10 – 14 V?
5 1) Turn ignition switch to OFF and measure resistance
between each terminal of "E03-13", "E03-26" and vehicle
body ground.
Is resistance less than 2
6 Check CAN communication circuit between combination
meter and ABS hydraulic unit / control module referring to
"DTC U1073: Control Module Communication Bus Off: ".
Is CAN communication circuit in good condition?
Action
Ω
?
Yes
Go to Step 7 of "ABS
Check: ".
Go to Step 3.
Go to Step 4.
Go to Step 5.
Go to Step 6.
Substitute a known-
good combination meter
and recheck. If ABS
warning lamp remains
ON, substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.
No
Go to Step 2.
Replace fuse and check
circuit for short to
ground.
"GRN/ORN" circuit
open.
"WHT/RED" and/or
"WHT/BLU" circuit
open.
Ground circuit for ABS
hydraulic unit / control
module open or high
resistance.
Repair or replace.