Mitsubishi Lancer Evolution-IV Workshop Manual page 207

27-24
7. CHECK AT AYC-ECU TERMINALS
7-1 TERMINAL VOLTAGE LISTING
(1) The voltage is to be measured across each terminal and ground terminal.
(2) Fig. below shows the arrangement of the terminals.
Terminal Check item
No.
1 Lateral acceleration sensor
2 Longitudinal acceleration
sensor ground
Lateral acceleration sensor
ground
3 Longitudinal acceleration
sensor
4 Steer sensor (ST-2)
5 Steer sensor (ST-1)
1
6* FR wheel speed
1
7* FL wheel speed
1
8* RR wheel speed
1
9* FL wheel speed
10 Diagnosis selection input
11 Stop lamp switch
1
12* ABS monitor
17 Steer sensor (ST-N)
REAR AXLE –
Troubleshooting <AYC>
Check requirement
Ignition switch: ON
At all times
Ignition switch: ON
Engine: Idle speed
Turn steering wheel slowly.
Engine: Idle speed
Turn steering wheel slowly.
Vehicle stationary
Forward vehicle slowly.
Vehicle stationary
Forward vehicle slowly.
Vehicle stationary
Forward vehicle slowly.
Vehicle stationary
Forward vehicle slowly.
Ignition switch:
ON ON
When ABS monitor is activated
When ABS monitor is deactivated
Engine:
Idle speed
Idle speed
Stop lamp switch: ON
Stop lamp switch: OFF
Steering wheel: Neutral position
Steering wheel: Turned 90_ from
neutral position
Normally
2.4 – 2.6 V
(horizontal position)
0 V
2.4 – 2.6 V
(horizontal position)
0 V ↔ approx. 3 V
flashing
0 V ↔ approx. 3 V
flashing
1 V or less
0 – 5 V
1 V or less
0 – 5 V
1 V or less
0 – 5 V
1 V or less
0 – 5 V
Battery voltage
Battery voltage
1 V or less
Battery voltage
1 V or less
0.5 V or less
2.5 – 3.5 V