Mitsubishi 1992 3000GT, Руководство по обслуживанию

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SERVICE BRAKES
Anti-lock Braking System Troubleshooting
Code No. 51 ABS valve relay system
Probable cause
ABS-ECU monitors solenoid valve drive circuit at all times. When 5 or more solenoids
are not energized with solenoid valve turned ON by ABS-ECU or when 5 or more
l
valve relay defective
solenoids are kept energized with solenoid valve turned OFF by ABS-ECU, ABS
l
Harness, connector defective
l
HU defective
valve is judged to be in trouble and output is provided.
l
ABS-ECU defective
Check ABS valve relay.
(Refer to
Replace ABS valve relay.
Measure at ABS valve relay
connector A-80.
Check harness between ABS valve
l
Disconnect connectors and
make measurements on har-
ness side.
l
Voltage between terminal No. 5
and body ground
Battery voltage
Measure at ABS-ECU connector
NG
E-12.
l
Disconnect connectors and
make measurements on har-
ness side.
l
Resistance between 82-47
c-94, A-80
Check solenoid valve.
(Refer to Replace HU.
Check harness between ABS valve
A-64,
at HU connector A-64 and
connector E-l 2.
Disconnect connectors and
make measurements on har-
ness side.
Continuity between the following
terminals
Continuity provided
HU side ABS-ECU side
3 78
7
50
4 31
8
59
1 30
5 58
2
79
6 51
OK
Check harness between HU and
ABS-ECU, and repair if necessary.
Measure at HU connector A-65 and
ABS valve relay connector A-80.
l
Disconnect connectors and
make measurements on har-
A-65, A-80
ness side.
l
Continuitybetween thefollowing
Check harness between HU and
ABS valve relay, and repair if
OK: Continuity provided
HU side ABS valve relay side
necessary.
1 2 - 4
OK
N G
E-12
Check trouble symptoms. Replace
TSB Revision