|
|
MANUAL TRANSMISSION - TROUBLESHOOTING 22-18 Code No.74 Proportional valve <ACD> system Assumed cause of concern In cases where the proportional valve <ACD> control circuit • Proportional valve <ACD> malfunction Remarks *2 : refer to ’01-1 Lancer Evolution VII Service Manual (No.1036K02) MUT-II/III Service data OK: P.22-32 Refer to (Service Data List) *2 OK -> Intermittent malfunction Measurement at F-25 proportional valve <ACD> valve side • Resistance between 2 -3 OK: 4.7 Ω or less Measurement at F-25 proportional valve <ACD> OK: 2 Ω or less Connector check: F-25, F-22 Check harness between proportional valve <ACD> - Replace hydraulic unit Connector check: F-25, F-22, C-30, C-133, C-38 Check harness between 4WD-ECU and Proportional damaged NG -> repair MUT-II/III Service data OK: refer to P.22-32 (Service Data List) *2 NG: replace 4WD ECU Code No.81 Electric pump relay system Assumed cause of concern Output when the circuit on the pump relay coil side is broken • Electric pump relay malfunction Remarks *2 : refer to ’01-1 Lancer Evolution VII Service Manual (No.1036K02) MUT-II/III actuator test OK: the electric pump operating sound is audible OK -> Intermittent malfunction Check electric pump relay (refer P.22-53) *2 Measurement at B-127 electric pump relay connector OK: 2 Ω or less Connector check: B-127 Check harness between electric pump relay - body earth Replace electric pump relay Connector check: B-127, C-38 Check harness between 4WD-ECU and electric pump relay or damaged NG -> repair MUT-II/III Actuator test OK: the electric pump operating sound is audible NG: replace 4WD ECU NG OK OK OK OK OK NG OK OK NG NG OK OK OK NG OK |