
REAR AXLE –
Troubleshooting <AYC>
27-16
Code No. 72: Directional control valve (right) system
Probable cause
This code is output when the directional control valve (right) control circuit is open-
or short-circuited.
D
Defective directional control valve (right)
D
Defective harness or connector
D
Defective AYC-ECU
OK
Check and repair the harness between
directional control valve (right) and
body ground.
OK
Check the trouble symptom.
OK
Replace AYC-ECU.
NG
Check the harness between directional
control valve (right) and AYC-ECU.
NG
Repair
OK
Check the trouble symptom.
OK
Check the following connectors:
B-96, B-94, D-06, F-30, F-29
NG
Repair
OK
Measure at F-29 directional control
valve (right) connector.
D
Disconnect the connector and
measure at the directional control
valve side.
D
Continuity across 1 and body
ground
OK: Conducting
NG
Check the following connectors:
F-29, F-30
NG
Repair
Measure at F-29 directional control
valve (right) connector.
D
Disconnect the connector and
measure at the directional control
valve side.
D
Resistance across 1 – 2
OK: 19 – 21
Ω
or less
NG
Replace the hydraulic unit.
Summary of Contents for LANCER EVOLUTION-IV 1998
Page 4: ...NOTES...
Page 15: ...B 11 NOTES...
Page 19: ...B 15 NOTES...
Page 21: ...SINGLE PART INSTALLATION POSITION ECU A B 17 ECU Name Symbol AYC ECU A...
Page 27: ...SINGLE PART INSTALLATION POSITION Ground 1 2 5 6 B 23 GROUND 1 2 5 6 7 14 15 13 11 12 10 9...
Page 28: ...SINGLE PART INSTALLATION POSITION Ground 7 9 10 11 12 11 12 13 14 15 B 24...
Page 57: ...B 53 NOTES...
Page 67: ...B 63 NOTES...
Page 75: ...B 71 NOTES...
Page 91: ...B 87 NOTES...
Page 116: ...SINGLE PART INSTALLATION POSITION Ground Cable Ground C 18 GROUND CABLE GROUND...
Page 135: ...C 37 NOTES...
Page 151: ...C 53 NOTES...
Page 161: ...C 63 NOTES...
Page 171: ...C 73 NOTES...
Page 177: ...C 79 NOTES...
Page 185: ...MODELS 2 00 1 GENERAL CONTENTS...
Page 222: ...LUBRICANTS 2 ENGINE OIL COOLER 2 12 1 ENGINE LUBRICATION CONTENTS...
Page 299: ...MANUAL TRANSMISSION 22A MANUAL TRANSMISSION OVERHAUL 22B 22 1 MANUAL TRANSMISSION CONTENTS...
Page 300: ...22 2 NOTES...
Page 362: ...26 1 FRONT AXLE CONTENTS SERVICE SPECIFICATIONS 2 SPECIAL TOOLS 2 AXLE HUB AND KNUCKLE 3...
Page 420: ...ROLL STOPPER AND CENTERMEMBER 2 32 1 POWER PLANT MOUNT CONTENTS...
Page 448: ...BASIC BRAKE SYSTEM 35A ANTI LOCK BRAKING SYSTEM ABS 35B 35 1 SERVICE BRAKES CONTENTS...
Page 449: ...35 2 NOTES...