Mitsubishi Lancer Evolution VI. Manual - part 70

 

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Mitsubishi Lancer Evolution VI. Manual - part 70

 

 

ABS  – 

Troubleshooting

35B-30

ACTUATOR TEST REFERENCE TABLE

The MUT-

II

 activates the following actuators for testing.

NOTE
(1) If the ABS-ECU runs down, actuator testing cannot be carried out.
(2) Actuator testing is only possible when the vehicle is stationary.

ACTUATOR TEST SPECIFICATIONS

Item
No.

Checking item

Activation

01

Solenoid valve for front-right
wheel

Solenoid valves and
pump motors in the
h d

li

it ( i

l

02

Solenoid valve for front-left
wheel

p

p

hydraulic unit (simple
inspection mode)

03

Solenoid valve for rear-right
wheel

04

Solenoid valve for rear-left
wheel

CHECK AT ABS-ECU TERMINALS

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.

<EVOLUTION-IV>

Terminal
No.

Check item

Check requirement

Normally

1

Solenoid valve IN (RR) output

Ignition switch: ON (after initial check)

System voltage

2

Ground

At all times

0 V

14

Solenoid valve OUT (FL) output

Ignition switch: ON (after initial check)

System voltage

15

Solenoid valve OUT (RR) output

Ignition switch: ON (after initial check)

System voltage

16

Solenoid valve IN (FL) output

Ignition switch: ON (after initial check)

System voltage

2s

1s

Activation pattern of Items No. 01 – 04

Solenoid
valve

Pump
motor

ON

OFF

MUT-

II

 actuator test 

(Items No. 01, 02, 03, 04) start

End

A

B

C

About 0.05s

About
0.01s

NOTE

A: Hydraulic pressure increase
B: Hydraulic pressure holds
C: Hydraulic pressure decrease

ABS  – 

Troubleshooting

35B-31

Terminal
No.

Normally

Check requirement

Check item

17

Acceleration sensor input

Ignition switch: ON

2.4 – 2.6 V 
(horizontal position)

18

Acceleration sensor ground

At all times

0 V

25

ABS-ECU backup power supply

At all times

System voltage

26

ABS-ECU power supply

Ignition switch: ON

System voltage

Ignition switch: START

0 V

31

Ground

At all times

0 V

33

Diagnosis changeover input

When the MUT-

II

 is connected

0 V

When the MUT-

II

 is not connected

System voltage

34

Valve relay monitor input

Ignition switch: ON (after initial check)

System voltage

35

Motor monitor input

Ignition switch:
ON (after initial

When motor is ON

System voltage

ON (after initial
check)

When motor is OFF

0 V

37

Solenoid valve OUT (RL) output

Ignition switch: ON (after initial check)

System voltage

38

Solenoid valve IN (FR) output

Ignition switch: ON (after initial check)

System voltage

39

Ground

At all times

0 V

40

Stop lamp switch input

Ignition switch:
ON

Stop lamp switch: ON

System voltage

ON

Stop lamp switch: OFF

0 V

41

Diagnosis data input/output

When the MUT-

II

 is connected

Serial communica-
tion with MUT-

II

possible

When the MUT-

II

 is not connected

–

42

Valve relay output

Ignition switch:
ON

When relay is ON 
(after initial check)

0 V

When relay is OFF

System voltage

43

Motor relay output

Ignition switch:
ON

When motor is energized

0 V

ON

When motor is deenergized

System voltage

44

ABS warning lamp output

Ignition switch:
ON

When lamp is off

System voltage

ON

When lamp is on

0 V

45

Solenoid valve IN (RL) output

Ignition switch: ON

System voltage

46

Solenoid valve OUT (FR) output

Ignition switch: ON

System voltage

ABS  – 

Troubleshooting

35B-32

<EVOLUTION-V, VI>

Terminal
No.

Check item

Check requirement

Normally

1

Solenoid valve OUT (FL) output

Ignition switch: ON (after initial check)

System voltage

2

Solenoid valve OUT (RR) output

Ignition switch: ON (after initial check)

System voltage

3

Solenoid valve IN (RR) output

Ignition switch: ON (after initial check)

System voltage

4

Acceleration sensor (longitudinal
acceleration) input

Ignition switch: ON

2.4 – 2.6 V 
(horizontal position)

11

Wheel speed (FL) output

Vehicle stationary

1 V or less

Moving forward slowly

0 – 5 V

13

ABS-ECU power supply

Ignition switch: ON

System voltage

14

Solenoid valve IN (FL) output

Ignition switch: ON (after initial check)

System voltage

15

Ground

At all times

0 V

17

Acceleration sensor ground

At all times

0 V

18

Acceleration sensor (lateral
acceleration) input

Ignition switch: ON

2.4 – 2.6 V 
(horizontal position)

24

Wheel speed (RL) output

Vehicle stationary

1 V or less

Moving forward slowly

0 – 5 V

25

Ground

At all times

0 V

32

ABS-ECU backup power supply

At all times

System voltage

33

Wheel speed (FR) output

Vehicle stationary

1 V or less

Moving forward slowly

0 – 5 V

34

Stop lamp switch input

Stop lamp switch: ON

System voltage

Stop lamp switch: OFF

0 V

36

Diagnosis data input/output

When the MUT-

II

 is connected

Serial communica-
tion with MUT-

II

possible

When the MUT-

II

 is not connected

–

37

Valve relay output

Ignition switch:
ON

When relay is ON

0 V

ON

When relay is OFF

System voltage

38

Motor relay output

Ignition switch:
ON

When motor is energized

0 V

ON

When motor is deenergized

System voltage

40

Solenoid valve OUT (RL) output

Ignition switch: ON (after initial check)

System voltage

41

Solenoid valve OUT (FR) output

Ignition switch: ON (after initial check)

System voltage

42

Ground

At all times

0 V

ABS  – 

Troubleshooting

35B-33

Terminal
No.

Normally

Check requirement

Check item

44

Wheel speed (RR) output

Vehicle stationary

1 V or less

Moving forward slowly

0 – 5 V

47

Diagnosis changeover input

When the MUT-

II

 is connected

0 V

When the MUT-

II

 is not connected

System voltage

48

Valve relay monitor input

Ignition switch: ON (after initial check)

System voltage

49

Motor relay monitor input

Ignition switch:
ON

When motor is energized

0 V

ON

When motor is deenergized

System voltage

50

ABS warning lamp output

Ignition switch:
ON

When lamp is off

System voltage

ON

When lamp is on

0 V

51

Solenoid valve IN (RL) output

Ignition switch: ON (after initial check)

System voltage

52

Solenoid valve IN (FR) output

Ignition switch: ON (after initial check)

System voltage

LISTING OF RESISTANCE AND CONTINUITY ACROSS CONNECTOR TERMINALS ON HARNESS
SIDE

1.

Measure the resistance and check for continuity with the ignition switch in the “OFF” position and
ABS-ECU connector disconnected.

2.

Measure the resistance and check for continuity across terminals listed below.

3.

Fig. below shows the arrangement of terminals.

<EVOLUTION-IV>

Terminal No.

Signal name

Normally

1 – body ground

Solenoid valve IN (RR)

8.04 – 9.04 

Ω

2 – body ground

ECU ground

Conducting

6 – 19

Wheel speed sensor (FL)

1.4 – 1.8 k

Ω

7 – 20

Wheel speed sensor (RR)

1.4 – 1.8 k

Ω

8 – 21

Wheel speed sensor (FR)

1.4 – 1.8 k

Ω

9 – 22

Wheel speed sensor (RL)

1.4 – 1.8 k

Ω

14 – body ground

Solenoid valve OUT (FL)

4.04 – 4.54 

Ω

15 – body ground

Solenoid valve OUT (RR)

4.04 – 4.54 

Ω

16 – body ground

Solenoid valve IN (FL)

8.04 – 9.04 

Ω

18 – body ground

Acceleration sensor ground

Conducting

31 – body ground

ECU ground

Conducting

34 – body ground

Valve relay monitor

Conducting

35 – body ground

Motor monitor

Conducting

37 – body ground

Solenoid valve OUT (RL)

4.04 – 4.54 

Ω

 

 

 

 

 

 

 

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