Suzuki GA413 Service Manual page 280

5E-26 ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL)
DTC 61 – ABS PUMP MOTOR CIRCUIT
DESCRIPTION
ABS control module monitors the voltage at monitor terminal of pump motor circuit constantly with the ignition
switch turned ON. It sets this DTC when the voltage at the monitor terminal does not become high/low according
to ON/OFF commands to the motor relay of the module (does not follow these commands).
INSPECTION
STEP
1 1) Check pump motor referring to item
"ABS HYDRAULIC UNIT OPERATION CHECK"
in this section.
Is it in good condition?
2 1) Ignition switch OFF.
2) Disconnect ABS hydraulic unit / control module
connector. (See Fig. 1)
3) Check for proper connection to ABS hydraulic
unit / control module connector at terminal "A27".
4) If OK, then measure voltage between terminal
"A27" of module connector and body ground.
Is it 10 – 14V?
3 Measure resistance between connector terminal
"A28" of ABS hydraulic unit / control module
assembly and body ground.
Is it infinite (
Fig. 1
ACTION
)?
1. ABS hydraulic
unit / control
module connector
1. ABS hydraulic unit/control module assembly
1-1. ABS pump motor relay
1-2. ABS pump motor
1-3. ABS fail safe relay
2. ABS hydraulic unit/control module connector of harness
YES
Check terminals "A11"
and "A27" connection.
If connections OK,
substitute a known-good
ABS hydraulic unit /
control module
assembly and recheck.
Go to step 3.
"B" circuit open.
NO
Go to step 2.
"W / Bl" circuit open.
Substitute a known-
good ABS hydraulic
unit/ control module
assembly and recheck.