43
It does not go on.
[A]
Check the ABS
warning light.
Goes on for 2 seconds and goes off afterward.
Flashing
[B-1]
Warning light
does not
go on.
[B-3]
Warning light
keeps flashing.
Keeps going on.
[B-2]
Warning light
keeps going on.
[B-5]
Present
malfunction
[B-4]
Past
malfunction
NOTE: Display the
malfunction code
number and record it.
[C-1]
Only ABS
warning light
does not go
on.
[C-2]
All indicator
lights do not
go on.
[C-3]
Warning light
keeps flashing.
[C-5]
Diagnoses by
malfunction
codes.
[C-4]
ABS warning light
flashes every
0.5 second.
Check
the fuse.
Check the
connect-
ing parts.
Check the
brake switch
circuit.
Check the
ECU com-
ector.
Check the
wire har-
nesses.
Check the
test coupler
adaptor.
ECU
[D-1]
To investigate, use
the diagnosis table
(from [C-5-1] to
[C-5-10]).
Explain to the
customer.
Check the
wire harness.
Sensor
[D-3, 4]
Fail-safe
relay
[D-2]
Check
the piping.
HU test
[D-6-3]
HU
[D-5]
ECU
[D-1]
Are all defective phenomena corrected?
Return to [A]
Delete the malfunction
code record. [D-6-4]
End
ANTI-LOCK BRAKE SYSTEM (ABS)
CHAS
NOTE:
WARNING
BASIC PROCESS FOR TROUBLESHOOTING
Do not delete the malfunction code during the troubleshooting procedures. Be sure to delete it when the
service is finished.
Always execute the “final check” when the components related to ABS are checked and serviced.
