Mitsubishi Lancer Evolution IX. Manual — part 497
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-19
Code No.16: ABS-ECU Power Supply System (abnormal voltage drop or rise)
OPERATION
The ABS-ECU power is supplied to the ABS-ECU
(terminal 10) from the ignition switch (IG2) through
the multi-purpose fuse number 12 in the junction
block.
DIAGNOSIS CODE SET CONDITIONS
Output is provided when ABS-ECU power supply
voltage drops below or rises above the normal value.
Output is not provided if power supply voltage
returns to normal voltage.
PROBABLE CAUSES
The most likely causes for this diagnosis code to set
are:
• Malfunction of battery
• Damaged wiring harness and connector
• Malfunction of brake modulator hydraulic unit and
ABS-ECU
DIAGNOSIS
STEP 1. Check the battery.
Refer to GROUP 54A, Battery
− On-vehicle Service
− Battery Test
Q: Is the battery damaged?
YES :
Charge or replace the battery and then go
to Step 5.
NO :
Go to Step 2.
STEP 2. Check the charging system.
Refer to GROUP 16, Charging System
− On-vehicles
Service
Q: Is the charging system damaged?
YES :
Repair the Charging System and then go to
Step 5.
NO :
Go to Step 3.
IGNITION
SWITCH (IG2)
ABS-ECU
POWER
SUPPLY
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
Power Supply Circuit
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-20
STEP 3. Check the following connectors.
•
ABS-ECU connector B-118
•
Intermediate connector C-124
•
Junction block connectors C-210, C-211
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 4.
NO :
Repair it and then go to Step 5.
STEP 4. Check the following harness wire.
The wire between ABS-ECU connector B-118 (termi-
nal 10) and junction block connector C-211 (terminal
2)
Q: Is the harness wire damaged?
YES :
Repair or replace it and then go to Step 5.
NO :
Go to Step 5.
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
AC211265
Connector: C-124
AR
18
3
16
15
14
1 2
17
4 5
8
20
19
6 7
2122
9 10
25
13
24
23
12
11
AC212152
Connectors: C-210, C-211
C-210
C-211
AC
Junction block
(Front view)
Connector C-210
(Harness side)
4
6 5
3
2
1
10
1
6
14
5
12
13
4
11
7
2
3
8
9
Connector C-211
(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
AC211269
Connector: C-211
AL
Junction block
(Front view)
Harness side
4
6 5
3
2
1
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-21
STEP 5. 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: Does diagnosis code No.16 reset?
YES :
Start over at 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>
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-22
Code No.32: Longitudinal G-Sensor System
OPERATION
The G-sensor detects the acceleration level in the
forward/reverse direction of the vehicle, converts the
signals into voltage signals and then sends that sig-
nal to the ABS-ECU.
DIAGNOSIS CODE SET CONDITIONS
This code is set in the following case.
• When the G-sensor output is 0.5 V or lower or
4.5 V or higher (disconnected G-sensor or G-sen-
sor short circuit)
• If the G-sensor output power does not change
(G-sensor output fastening).
PROBABLE CAUSES
The most likely causes for this diagnosis code to set
are:
• Malfunction of the G-sensor
• Damaged wiring harness and connector
• Malfunction of the brake modulator hydraulic unit
(integrated with ABS-ECU)
IGNITION
SWITCH (IG2)
G-SENSOR
(LONGITUDINAL)
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
Longitudinal G-Sensor Circuit
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст