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Anti-lock Braking System(ABS)
14
C. ABS SYSTEM FAILURE WARNING LIGHT :
Cause of System
failure
Function
Warning Lamp
ABS
EBD
EDC (If
Equipped)
TOD
Control (If
Equipped)
Vehicle
Speed &
Odometer
ABS
EBD
None
Operates Operates Operates
Operates
Operates
OFF
OFF
One Wheel Speed
Sensor Failure
Does Not
Operate
Operates
Does Not
Operate
Does Not
Operate
Operates
ON
OFF
Failure of more than 2
wheel speed sensors
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
Operates
Till All
WSS Fail.
ON
ON
Pump Failure
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
Operates
ON
ON
Battery voltage low
(V>8.4 and V < 10)
Does Not
Operate
Operates
Does Not
Operate
Does Not
Operate
Operates
ON
OFF
Battery voltage low
(V<8.4)
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
ON
ON
Battery voltage High
(V>17.5)
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
ON
ON
Valve failure
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
Operates
ON
ON
ECU Internal failures
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
Does Not
Operate
ON
ON
CAN Bus Off (Open
Ckt, Short Ckt,
Hardware failure )
Operates Operates
Does Not
Operate
Does Not
Operate
Does Not
Operate
ON
ON
Message Time Out
With EMS
Operates Operates
Does Not
Operate
Operates
Operates
ON
OFF