YH4
GRAND
VITARA
ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E1-19
-1. “ABS” warning lamp
-2. ABS hydraulic unit/ control
module assembly
-3. Diagnosis connector
3-1. Diag. switch terminal
3-2. Diag. ground terminal
-4. ABS hydraulic unit/
control module connector
of harness
1. ABS hydraulic
unit/ control
module connector
TABLE – D CODE (DTC) IS NOT OUTPUTTED EVEN WITH DIAG. SWITCH
TERMINAL CONNECTED TO GROUND
CIRCUIT DESCRIPTION
When the diag. switch terminal is connected to the ground with the ignition switch turned ON, the ABS control mod-
ule outputs a diagnostic trouble code by flashing “ABS” warning lamp.
INSPECTION
STEP ACTION YES NO
1 Is it shorted diag. switch terminal and ground terminal by
service wire properly?
Go to step 2. Connect service
wire securely.
2 1) Disconnect service wire.
2) Disconnect ABS hydraulic unit/control module
connector. (See Fig. 1)
3) Measure resistance between diag. switch terminal
and connector terminal “A8”.
Is it infinite ()?
“P” circuit open. Go to step 3.
3 1) Measure resistance between ground terminal of
monitor connector and body ground.
Is continuity indicated?
Go to step 4. “B” circuit open or
poor connection.
4 1) Check for proper connection to ABS hydraulic
unit/control module at terminal “A8” and “A10”.
2) If OK, then check “ABS” warning lamp circuit
referring to “TABLE A, B and C”.
Is it in good condition?
Substitute a
known-good ABS
hydraulic unit/
control module
assembly and
recheck.
Repair “ABS”
warning lamp
circuit.
Fig. 1
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