Mitsubishi Lancer Evolution IX. Manual — part 496
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-15
STEP 7. Check the following connectors.
•
ABS-ECU connector B-118
•
Intermediate connectors C-111, C-122
•
Front wheel speed sensor (RH) connector A-27
Check the connectors for loose, corroded or dam-
aged terminals, or terminals pushed back in the con-
nector.
Q: Are the connectors and terminals in good
condition?
YES :
Go to Step 8.
NO :
Repair it and then go to Step 15.
STEP 8. Check the following harness wires.
•
The wire between ABS-ECU connector B-118 (termi-
nal 29) and front wheel speed sensor (RH) con-
nector A-27 (terminal 1)
• The wire between ABS-ECU connector B-118
(terminal 30) and front wheel speed sensor (RH)
connector A-27 (terminal 2)
Q: Is any harness wire damaged?
YES :
Repair or replace it and then go to Step 15.
NO :
Go to Step 15.
AC211901AD
B-118 (B)
Connector: B-118
28
32
34
12
11
33
30
21
9
10
22
31
7
8
29
20 19
24
2
26
4
5
6
27
18 17
3
25
16 15
1
23
13
14
Harness side
AC211266
Connector: C-111
BN
Harness side
5 4 3
2 1
13121110 9 8 7 6
AC211265 DD
Connector: C-122
C-122 (L)
2
1
3
13
12
14
21
10
5
4
6
16
15
17
7 8 9
19
18
20
11
22
AC211900 AC
Connector: A-27
A-27 (B)
1
2
Harness side
AC211901AD
B-118 (B)
Connector: B-118
28
32
34
12
11
33
30
21
9
10
22
31
7
8
29
20 19
24
2
26
4
5
6
27
18 17
3
25
16 15
1
23
13
14
Harness side
AC211900 AC
Connector: A-27
A-27 (B)
1
2
Harness side
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-16
STEP 9. Check the following connectors.
•
ABS-ECU connector B-118
•
Intermediate connectors C-113, C-122, D-34
• Rear wheel speed sensor (LH) connector D-13
Check the connectors for loose, corroded or dam-
aged terminals, or terminals pushed back in the con-
nector.
Q: Are the connectors and terminals in good
condition?
YES :
Go to Step 10.
NO :
Repair it and then go to Step 15.
STEP 10. Check the following harness wires.
•
The wire between ABS-ECU connector B-118 (termi-
nal 6) and rear wheel speed sensor (LH) connec-
tor D-13 (terminal 1)
• The wire between ABS-ECU connector B-118
(terminal 7) and rear wheel speed sensor (LH)
connector D-13 (terminal 2)
Q: Is any harness wire damaged?
YES :
Repair or replace it and then go to Step 15.
NO :
Go to Step 15.
AC211901AD
B-118 (B)
Connector: B-118
28
32
34
12
11
33
30
21
9
10
22
31
7
8
29
20 19
24
2
26
4
5
6
27
18 17
3
25
16 15
1
23
13
14
Harness side
AC211266
Connector: C-113
BO
Harness side
16
3
14
1
15
2
17
4
18
5
20
8
19
6
7
21
9
22
10
13
2524
12
23
11
AC211265 DD
Connector: C-122
C-122 (L)
2
1
3
13
12
14
21
10
5
4
6
16
15
17
7 8 9
19
18
20
11
22
AC211902
AD
Connectors: D-13, D-34
D-34
D-13 (B)
Connector D-13
(Harness side)
1 2
Connector D-34
8
3
1
4 5 6
2
7
AC211901AD
B-118 (B)
Connector: B-118
28
32
34
12
11
33
30
21
9
10
22
31
7
8
29
20 19
24
2
26
4
5
6
27
18 17
3
25
16 15
1
23
13
14
Harness side
AC211902
AE
Connector: D-13
D-13 (B)
Harness side
1 2
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-17
STEP 11. Check the following connectors.
•
ABS-ECU connector B-118
•
Intermediate connectors C-113, C-122, D-34
• Rear wheel speed sensor (RH) connector D-06
Check the connectors for loose, corroded or dam-
aged terminals, or terminals pushed back in the con-
nector.
Q: Are the connectors and terminals in good
condition?
YES :
Go to Step 12.
NO :
Repair it and then go to Step 15.
STEP 12. Check the following harness wires:
•
The wire between ABS-ECU connector B-118 (termi-
nal 8) and rear wheel speed sensor (RH) connec-
tor D-06 (terminal 1)
• The wire between ABS-ECU connector B-118
(terminal 9) and rear wheel speed sensor (RH)
connector D-06 (terminal 2)
Q: Is any harness wire damaged?
YES :
Repair or replace it and then go to Step 15.
NO :
Go to Step 15.
STEP 13. Measure the wheel speed sensor
output voltage.
Refer to
Output Voltage:
• When measured with a voltmeter: 42 mV or more
• When measured with an oscilloscope (maximum
voltage): 120 mV or more
Q: Does the voltage meet the specification?
YES :
Replace the brake modulator hydraulic unit
(integrated with ABS-ECU) (Refer to
). Then go to Step 15.
NO :
Go to Step 14.
AC211901AD
B-118 (B)
Connector: B-118
28
32
34
12
11
33
30
21
9
10
22
31
7
8
29
20 19
24
2
26
4
5
6
27
18 17
3
25
16 15
1
23
13
14
Harness side
AC211266
Connector: C-113
BO
Harness side
16
3
14
1
15
2
17
4
18
5
20
8
19
6
7
21
9
22
10
13
2524
12
23
11
AC211265 DD
Connector: C-122
C-122 (L)
2
1
3
13
12
14
21
10
5
4
6
16
15
17
7 8 9
19
18
20
11
22
AC211902
AF
Connectors: D-06, D-34
D-06 (B)
D-34
Connector D-06
(Harness side)
1 2
Connector D-34
8
3
1
4 5 6
2
7
AC211901AD
B-118 (B)
Connector: B-118
28
32
34
12
11
33
30
21
9
10
22
31
7
8
29
20 19
24
2
26
4
5
6
27
18 17
3
25
16 15
1
23
13
14
Harness side
AC211902
AG
Connector: D-06
D-06 (B)
Harness side
1 2
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-18
STEP 14. Check the wheel bearing.
Refer to GROUP 26, On-vehicle Service
− Wheel
Bearing Axial Play Check <Front>
or GROUP
27, On-vehicle Service
− Wheel Bearing Axial Play
Check <Rear>
. If play on the wheel bearing
is not within the limit, replace the wheel bearing.
Limit: 0.05 mm
Q: Is play on the wheel bearing within the standard
value?
YES :
Go to Step 15.
NO :
Replace it and then go to Step 15.
STEP 15. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set.
(1) Turn the ignition switch to the "ON" position.
(2) Erase the diagnosis code.
(3) Turn the ignition switch to the "LOCK" (OFF)
position.
(4) Turn the ignition switch to the "ON" position.
(5) Check if the diagnosis code is set.
(6) Turn the ignition switch to the "LOCK" (OFF)
position.
Q: Do the diagnosis codes 11, 12, 13, 14, 21, 22, 23 or
24 reset?
YES :
Go to Step 1.
NO :
The procedure is complete.
AC207179AB
M.U.T.-II
16-PIN
<Using the M.U.T.-II>
AC210056
AC
MB991911
16-PIN
MB991827
MB991824
<Using the M.U.T.-III>
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