Suzuki GA413, Service Manual

Page: 271 / 1246

ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E-17
TABLE – C “ABS” WARNING LAMP CIRCUIT CHECK – THE LAMP FLASHES
CONTINUOUSLY WHILE IGNITION SWITCH IS ON
1. “ABS” warning lamp in combination meter
2. ABS hydraulic unit / control module assembly
3. Diagnosis connector
3-1. Diag. switch terminal
3-2. Diag. ground terminal
CIRCUIT DESCRIPTION
When diag. switch terminal is shorted or connected to the ground with ignition switch ON, diag. trouble code (DTC)
is indicated by flashing of “ABS” warning lamp only in following cases.
Normal DTC (12) is indicated if no malfunction DTC is detected in the ABS.
A history malfunction DTC is indicated by flashing of the lamp if a current malfunction DTC is not detected at that
point although a history malfunction DTC is stored in memory.
NOTE:
If ABS hydraulic unit/control module assembly has been replaced by a new one, “ABS” warning lamp may
flash when ignition switch is turned ON. In such case, perform “ABS Hydraulic Unit Operation Check” de-
scribed in this section and make sure that it does not flash.
INSPECTION
STEP ACTION YES NO
1 Is diag. switch terminal connected to ground via
service wire?
Go to step 3. Go to step 2.
2 1) Ignition switch ON.
2) Measure voltage between diag. switch terminal and
ground.
Is it 10 – 14 V
Substitute a known-
good ABS hydraulic
unit / control module
assembly and recheck.
“P” wire circuit shorted
to ground.
3 1) Ignition switch ON.
2) Does flashing of ABS warning lamp indicate
DTC (DTC 12 or history DTC)?
Go to step 7 of ABS
diagnostic flow table in
this section.
Substitute a known-
good ABS hydraulic
unit / control module
assembly and recheck.