140
SR. NO.
PROBLEM OBSERVED
PROBABLE CAUSE
ACTION TO BE TAKEN
ANTI-LOCK BRAKING SYSTEM
1.
ABS warning lamp stays ‘ON’
ABS unit faulty
No supply to ABS unit
•
Check wiring connections &
battery condition.
Electrical circuit problem :
•
Check wiring harness
Intermittent contact, Wiring
connections
connections / connections loose/
faulty
Component and sensor failure :
•
Check gap between sensor &
RPM sensors/toner rings fitting
toner ring
loose, gap disturbances, Sensor
signal that deviates from the specified
levels
Circuit / bulb failure
•
Replace bulb
Leakage from hydraulic unit ports
•
Eliminate leakage by tightening
Hydraulic unit fluid level low
•
Check reservoir fluid level and
bleed properly.
Unusual response and malfunction
•
Check sensor condition &
in the actuators
replace if necessary.
PRELIMINARY TROUBLE SHOOTING
P R E L I M I N A R Y T R O U B L E S H O O T I N G
