Abs Control Module; Self-Diagnosis Function; Fail-Safe Function - Suzuki Jimny Service Manual

ABS Control Module

Self-diagnosis function

ABS control module diagnoses conditions of the system compo-
nent parts (whether or not there is any abnormality) all the time
and indicates the results (warning of abnormality occurrence and
DTC) through the "ABS" warning lamp as described below.
1) When ignition switch is turned ON, "ABS" warning lights for 2
seconds to check its bulb and circuit.
2) When no abnormality has been detected (the system is in
good condition), "ABS" warning lamp turns OFF after 2 sec-
onds.
3) When an abnormality in the system is detected, "ABS" warn-
ing lamp lights and the area where that abnormality lies is
stored in the memory in ABS control module.
4) When Diag. switch terminal of monitor connector is
grounded, the abnormal area is output as DTC.
SYSTEM CONDITION
No trouble in the past
In good
condition
Trouble occurred in
at present
the past
No trouble in the past
Abnormal-
ity exists Trouble occurred in
at present
the past
NOTE:
The current code and the history code are displayed
without any classification.
For procedure to clear all DTC's, refer to the item "Diagnostic
Trouble Code (DTC) Clearance" in this section.
1. Ignition switch
2. "ABS" warning lamp
3. Monitor connector
3-1. Diag. switch terminal
3-2. Ground terminal

Fail-safe function

When an abnormality occurs (an abnormal DTC is detected),
ABS control module turns OFF the fail-safe transistor which sup-
plies power to ABS hydraulic unit. Thus, with ABS not operating,
brakes function just like the brake system of the vehicle without
ABS.
ANTILOCK BRAKE SYSTEM (ABS) 5E-5
DIAGNOSIS "ABS"
SWITCH WARNING
TERMINAL LAMP
Open
Grounded
Open
Grounded History DTC
Open
Grounded Current DTC
Open
Current and
Grounded
history DTC
4. ABS control module
5. Sensed information
6. Output
7. Lamp driver module
OFF
DTC 12
OFF
ON
ON