Page 207 - Workshop Manual - Aumark (BJ1051)

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Diagnosis-ABS system

ABS Malfunction Indicator Light Does Not Come On

Description
1. Symptom determination
(a) Generally, you can judge if the ABS works normally by observing ABS malfunction
indicator light and emergency brake application with vehicle speed greater than 40km/h.

04

(b) Operation of ABS malfunction indicator light is shown in the table below:

ABS malfunction indicator light
Ignition switch status Description
status
The light shines for an instant
(approx. 3 seconds) and then goes ABS is normal.
out.
If the light goes out when vehicle speed is greater
than 7km/h, it indicates ABS is normal.
Ignition switch: ON
Shines all the time. If the light does not go out when vehicle speed is
greater than 7km/h, it indicates an ABS malfunction
or indicator light line failure.
Indicator light line failure or ABS control unit
Does not come on.
malfunction

Tip:
• The ABS indicator light must not go out until vehicle speed is greater than 7km/h (if the
system is OK) after the vehicle is started for the first time or the system has been diagnosed.
Conditions after ignition switch is turned on for the second time are shown in above table.
• If ABS malfunction indicator light shines all the time, you should read DTC first and then
diagnose according to corresponding DTC.
• If no DTC exists, follow the steps below to perform troubleshooting.

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