ABS –
Troubleshooting
35B-13
INSPECTION PROCEDURE 2
Even after the engine is started, the ABS warning lamp
remains illuminated.
Probable cause
The cause is probably a short-circuit in the ABS warning lamp illumination circuit.
D
Malfunction of combination meter
D
Malfunction of ABS-ECU
D
Malfunction of wiring harness (short circuit)
NOTE
This trouble symptom is limited to cases where ABS-ECU power supply is normal and the diagnosis
code is a normal diagnosis code.
NO
Check the harness wire, and repair if necessary.
D
Between ABS warning lamp and ABS-ECU
D
Between ABS warning lamp relay and valve relay
NO
D
Disconnect the ABS-ECU connector B-25.
D
Disconnect the valve relay connector A-76.
D
Ignition switch: ON
D
Does the ABS warning lamp go off?
YES
Replace the ABS-ECU.
Does the ABS warning lamp stay illuminated when the connector
B-52 is disconnected and the ignition switch is turned to ON?
YES
Replace the combination meter.
INSPECTION PROCEDURE 3
After the ignition key is turned to “ON”, the ABS warning
lamp blinks once, and when turned to “START”, it
illuminates. When returned to “ON”, the lamp flashes
once, and then switches off.
Probable cause
The ABS-ECU causes the ABS warning lamp to illuminate during the initial check.
During the initial check, the valve relay turns from off to on, off and back to on again.
If there is an open circuit in the harness between the ABS-ECU and the ABS warning
lamp, the lamp will illuminate only when the valve relay is OFF during valve relay
test, etc.
D
Malfunction of wiring harness or connector
D
Malfunction of ABS-ECU
OK
Check the trouble symptom.
NG
Check the harness between the com-
bination meter and the ABS-ECU, and
repair if necessary.
OK
Check the trouble symptom.
NG
Replace the ABS-ECU.
OK
Check the following connector:
B-25
NG
Repair
Measure at ABS-ECU connector B-25.
D
Disconnect the connector and
meeasure at the harness side.
D
Disconnect valve relay connector
A-76.
D
Ignition switch: ON
D
Voltage between 50 and body
ground
OK: Battery voltage
NG
Check the following connector:
B-25
NG
Repair
Summary of Contents for Lancer Evolution IV
Page 1: ...Pub No S9806CNCP9 WORKSHOP MANUAL EVOLUTION IV EVOLUTION V...
Page 3: ...MODELS 2 00 1 GENERAL CONTENTS...
Page 40: ...LUBRICANTS 2 ENGINE OIL COOLER 2 12 1 ENGINE LUBRICATION CONTENTS...
Page 117: ...MANUAL TRANSMISSION 22A MANUAL TRANSMISSION OVERHAUL 22B 22 1 MANUAL TRANSMISSION CONTENTS...
Page 179: ...26 1 FRONT AXLE CONTENTS SERVICE SPECIFICATIONS 2 SPECIAL TOOLS 2 AXLE HUB AND KNUCKLE 3...
Page 237: ...ROLL STOPPER AND CENTERMEMBER 2 32 1 POWER PLANT MOUNT CONTENTS...
Page 265: ...BASIC BRAKE SYSTEM 35A ANTI LOCK BRAKING SYSTEM ABS 35B 35 1 SERVICE BRAKES CONTENTS...