Suzuki Wagon R RB310 Supplementary Service Manual page 39

5E-22 ANTILOCK BRAKE SYSTEM (ABS)
INSPECTION
Step
1 Is G sensor installed floor securely?
2 1) Ignition switch OFF.
2) Remove G sensor with bracket.
3) Check for proper connection to G sensor.
4) If OK then check G sensor referring to
INSPECTION of "G SENSOR".
Is it in good condition?
3 1) Disconnect connectors from ABS hydraulic
unit/control module assembly and G sensor.
2) Check for proper connection to ABS control
module at terminals "E20-11" and "E20-13".
3) If OK, then turn ignition switch ON and mea-
sure voltage between "W/B" terminal of sen-
sor connector and body ground.
It is 10 – 14 V?
4 Measure voltage between "ORN" terminal of
sensor connector and body ground.
Is it 0 V?
5 1) Ignition switch OFF.
2) Check that "Bl/W" circuit is free from open
or short to ground and "Bl/R" circuit.
Is it in good condition?
Action Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
Go to Step 5.
"Bl/R" circuit open.
If circuit is OK, substitute
a known-good ABS
hydraulic unit/control
module assembly.
No
Tighten sensor or bracket
screw securely. If not,
using new screw.
Replace G sensor.
"W/B" circuit open.
"ORN" circuit shorted to
power circuit.
"Bl/W" circuit open or
shorted to ground or
"BLK/ORN" circuit.