Mitsubishi Lancer Evolution VI - Page 222

REAR AXLE – Troubleshooting <AYC>
27-28
CHECK AT AYC-ECU TERMINALS
TERMINAL VOLTAGE LISTING
D The voltage is to be measured across each terminal and ground terminal.
D Fig. below shows the arrangement of the terminals.
Terminal
No.
Check item Check requirement Normally
1 Lateral acceleration sensor Ignition switch: ON 2.4 – 2.6 V
(horizontal position)
2 Longitudinal acceleration
sensor ground
Lateral acceleration sensor
ground
At all times 0 V
3 Longitudinal acceleration
sensor
Ignition switch: ON 2.4 – 2.6 V
(horizontal position)
4 Steer sensor (ST-2) Engine: Idle speed
Turn steering wheel slowly.
0 V ↔ approx. 3 V
flashing
5 Steer sensor (ST-1) Engine: Idle speed
Turn steering wheel slowly.
0 V ↔ approx. 3 V
flashing
6*
1
FR wheel speed Vehicle stationary 1 V or less
Forward vehicle slowly. 0 – 5 V
7*
1
FL wheel speed Vehicle stationary 1 V or less
Forward vehicle slowly. 0 – 5 V
8*
1
RR wheel speed Vehicle stationary 1 V or less
Forward vehicle slowly. 0 – 5 V
9*
1
FL wheel speed Vehicle stationary 1 V or less
Forward vehicle slowly. 0 – 5 V
10 Diagnosis selection input When MUT-II is connected 1 V or less
When MUT-II is disconnected System voltage
11 Stop lamp switch Ignition switch:
ON
Stop lamp switch: ON System voltage
ON
Stop lamp switch: OFF 1 V or less
12*
1
ABS monitor When ABS monitor is activated System voltage
When ABS monitor is deactivated 1 V or less