Mitsubishi Lancer Evolution IX. Manual — part 524
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-127
(2) Check for continuity between terminal 1 and
earth with pulling or releasing the parking brake
lever.
OK: If the parking brake lever is pulled,
there should be no continuity, and if the
parking brake lever is released, there
should be continuity (less than 2 ohms).
Q: Does continuity exist when the parking brake lever
is released, and dose continuity not exist when the
parking brake lever is pulled?
YES :
Go to Step 3.
NO :
Go to Step 4.
STEP 3. Check the following connector.
•
ABS-ECU connector B-118
Check the connector for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are the connector and terminals in good
condition?
YES :
Replace the brake modulator hydraulic unit
(integrated with ABS-ECU) (Refer to
). Then go to Step 6.
NO :
Go to Step 6.
STEP 4. Check the following connectors.
•
ABS-ECU connector B-118
•
Intermediate connector C-122
•
Parking brake switch connector D-28
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 5.
NO :
Repair it and then go to Step 6.
AC311127AB
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
AC311127AB
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
AC311160AC
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
AC311162AC
Connector: D-28
D-28 (B)
1
Harness side
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-128
STEP 5. Check the following harness wire.
The wire between parking brake switch connector
D-28 (terminal 1) and ABS-ECU connector B-118
(terminal 1)
Q: Is the harness wire damaged?
YES :
Repair or replace it and then go to Step 6.
NO :
Replace the parking brake switch (Refer to
GROUP 36, Parking Brake Lever
).
Then go to Step 6.
STEP 6. Check whether the diagnosis code is
reset.
Q: Does the parking brake switch turn ON/OFF
normally in the inspection by M.U.T.-II/III data list?
YES :
The procedure is complete.
NO :
Return to Step 1.
AC311162AC
Connector: D-28
D-28 (B)
1
Harness side
AC311127AB
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
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-129
INSPECTION PROCEDURE 6: The Neutral Position Learning of the Steering Wheel Sensor is not
Detected.
CIRCUIT OPERATION
The ABS system detects the neutral position learning
of the steering wheel sensor by the signal from the
stop lamp.
COMMENT ON TROUBLE SYMPTOM
The diagnosis is difficult because it depends on driv-
ing condition and road surface, if the diagnosis code
has not been set, carry out the following checks
(refer to TROUBLESHOOTING HINTS).
IGNITION
SWITCH (IG2)
STEERING
WHEEL
SENSOR
ABS-ECU
Wire colour code
B : Black LG : Light green
G : Green L : Blue
W : White Y : Yellow
SB : Sky blue BR : Brown
O : Orange GR : Gray
R : Red P : Pink V : Violet
ST-1
ST-2
ST-N
Steering Wheel Sensor Circuit
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-130
PROBABLE CAUSES
The most likely causes for this case are:
• Damaged wiring harness or connector
• Malfunction of the stop lamp switch system
• Tyres are not all the same diameter
• Malfunction of suspension
• Malfunction of the steering wheel sensor installa-
tion
• Malfunction of the brake modulator hydraulic unit
(integrated with ABS-ECU)
DIAGNOSIS
STEP 1. Check the front tyres.
Q: Are the tyre diameters different?
YES :
Replace the appropriate tyre and then go to
Step 13.
NO :
Go to Step 2.
STEP 2. Check the front suspension.
Q: Is the front suspension abnormal?
YES :
Repair the front suspension and then go to
Step 13.
NO :
Go to Step 3.
STEP 3. M.U.T.-II/III data list.
CAUTION
To prevent damage to M.U.T.-II/III, always turn the
ignition switch to the "LOOK" (OFF) position
before connecting or disconnecting M.U.T.-II/III.
(1) Connect M.U.T.-II/III as shown in the illustration.
(2) Start the engine.
AC311157
Steering shaft
AB
MB991502
<Using the M.U.T.-II>
AC311153
AB
MB991911
16-PIN
MB991827
MB991824
<Using the M.U.T.-III>
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст