Page 155 - Workshop Manual - Aumark (BJ1051)

04-11
Diagnose- ABS system

4. Diagnostic procedure for BCs

Mode Step System response Operation
Diagnosis 1. Ignition switch: ON. No actual malfunction exists in ABS, so no
If ABS malfunction action should be taken.
indicator light shines for an
instant and then goes out, it
indicates normal system.
If ABS malfunction Go to symptoms table.
indicator light does not
come on, it indicates line
failure or bulb damaged.
If ABS malfunction Go to step 2.
indicator light shines all the
time, it indicates one or
more malfunctions in the
system.
2. Depress ABS diagnostic ASR (ABS) blink code Determine whether the malfunction is actual
switch and hold for 1 indicator light starts to flash or stored:
second. 2 groups of codes. Actual malfunction: The light will show a
code repeatedly. 04
Stored malfunction: The light will show
code of malfunction at each storage and
then go out. The malfunction will be
displayed only once.
st
3. Determine BC 1 digit: 1-8 flashes Go to DTC list.
nd
according to number of 2 digit: 1-6 flashes
flashes. Interval between displays of
nd
st
1 and 2 digits is 1.5
second.

4. Correct and record In the case of an actual
malfunction. malfunction Make necessary repairs. Repeat steps 1
through 3 until the system is OK.
In the case of a stored Record for your future reference.
malfunction Notice:
The malfunction displayed first is the one
last stored in ABS control unit.

Clear 5. Clear a DTC from ABS. ASR (ABS) blink code The light should go out after all DTCs have
Depress ABS diagnostic indicator light gives at least been cleared.
switch and hold for at least 8 blinks.
3 seconds. ASR (ABS) blink code The actual malfunction persists. Then repeat
indicator light does not give steps 1 through 5.
8 blinks.
5. Using a special diagnostic tester to read and clear DTCs
(a) Ignition switch: OFF.

(b) Insert the diagnostic wire having a 9-pin plug into corresponding interface on the diagnostic tester.
(c) Connect the other end of the diagnostic wire with the diagnostic interface.

(d) Turn on ignition switch.
(e) “888” will be displayed immediately on display screen of the diagnostic tester.
(f) “ABS” will be displayed after approx. 1 second.
(g) The diagnostic tester is connected with ABS successfully.

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