Mitsubishi Lancer Evolution-VI, Workshop Manual, Page: 223 / 447

REAR AXLE –
Troubleshooting <AYC>
27-29
Terminal
No. Normally Check requirement Check item
17 Steer sensor (ST-N) Engine:
Idle speed Steering wheel: Neutral position 0.5 V or less
Idle speed
Steering wheel: Turned 90
_
from
neutral position
2.5 – 3.5 V
18 TPS Ignition switch:
ON Accelerator pedal: Fully closed 0.3 – 1.0 V
ON
Accelerator pedal: Fully open 4.5 – 5.0 V
23 Diagnosis data input/output When MUT-
II
is connected Serial communica-
tion with MUT-
II
When MUT- II is disconnected 1 V or less
24 Idle position switch Ignition switch:
ON Accelerator pedal: Fully closed 2 V or less
ON
Accelerator pedal: Fully open 4.5 – 5.0 V
25 Accumulator pressure
switch Ignition switch:
ON Accumulator internal pressure:
Low 2 V or less
Accumulator internal pressure:
High System voltage
26 ECU ground At all times 0 V
31 AYC-ECU power supply Ignition switch: ON System voltage
Ignition switch: OFF 0 V
35 AYC motor relay Ignition switch:
ON When motor is energized System voltage
ON
When motor is deenergized 2 V or less
36 AYC warning lamp Ignition switch:
ON When lamp is OFF System voltage
ON
When lamp is ON 2 V or less
37 Directional control valve
(right) Ignition switch:
ON Right clutch: ON System voltage
(right) ON
Right clutch: OFF 0 V
38 Proportioning valve Ignition switch:
ON AYC-ON 0 V to system volt-
age
AYC-OFF 0 V
39 ECU backup power supply At all times System voltage
45 Directional control valve
(left) Ignition switch:
ON Left clutch: ON System voltage
(left) ON
Left clutch: OFF 0 V
46 ECU ground At all times 0 V
NOTE
*1: Indicates the vehicles with ABS.