SUBARU LEGACY 1996 Service Repair Manual
Manufacturer: SUBARU, Model Year: 1996, Model line: LEGACY, Model: SUBARU LEGACY 1996Pages: 2890, PDF Size: 61.9 MB
Page 2311 of 2890
B4M0495
3. FR.SS OVER
—Excessive speed of front right ABS sensor signal—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
1. Check ABS sensor mechanical trouble.
OK
Not OK
Repair ABS sensor/tone wheel.
2. Check ground circuit of ABS/TCS control
module.
OK
Not OK
Repair harness/connector.
3. Check sources of signal noise.
OK
Not OK
Repair noise sources.
Replace ABS/TCS control module.
100
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2312 of 2890
B4M0496
F: TROUBLE CODE 23
1. FL.SS OPEN
—Faulty front left ABS sensor (Open circuit)—
DIAGNOSIS:
Faulty ABS sensor
Faulty harness and connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
OPEN.
B4M0497
2. FL.SS SHORT
—Faulty front left ABS sensor (Short circuit)—
DIAGNOSIS:
Faulty ABS sensor
Faulty harness and connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
SHORT.
101
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2313 of 2890
B4M0498
G: TROUBLE CODE 24
1. FL.SS W.SPEED
—Irregular signals from front left ABS sensor—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
W.SPEED.
B4M0499
2. FL.SS OR MV
—Irregular signals from front left ABS sensor in
decompressing mode—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty hydraulic unit
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS OR
MV.
B4M0500
3. FL.SS OVER
—Excessive speed of front left ABS sensor signal—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
OVER.
102
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2314 of 2890
B4M0501
H: TROUBLE CODE 25
1. RR.SS OPEN
—Faulty rear right ABS sensor (Open circuit)—
DIAGNOSIS:
Faulty ABS sensor
Faulty harness and connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
OPEN.
B4M0502
2. RR.SS SHORT
—Faulty rear right ABS sensor (Short circuit)—
DIAGNOSIS:
Faulty ABS sensor
Faulty harness and connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
SHORT.
103
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2315 of 2890
B4M0503
I: TROUBLE CODE 26
1. RR.SS W.SPEED
—Irregular signals from rear right ABS sensor—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
W.SPEED.
B4M0504
2. RR.SS OR MV
—Irregular signals from rear right ABS sensor in
decompressing mode—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty hydraulic unit
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS OR
MV.
B4M0505
3. RR.SS OVER
—Excessive speed of rear right ABS sensor signal—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
OVER.
104
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2316 of 2890
B4M0506
J: TROUBLE CODE 27
1. RL.SS OPEN
—Faulty rear left ABS sensor (Open circuit)—
DIAGNOSIS:
Faulty ABS sensor
Faulty harness and connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
OPEN.
B4M0507
2. RL.SS SHORT
—Faulty rear left ABS sensor (Short circuit)—
DIAGNOSIS:
Faulty ABS sensor
Faulty harness and connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
SHORT.
105
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2317 of 2890
B4M0508
K: TROUBLE CODE 28
1. RL.SS W.SPEED
—Irregular signals from rear left ABS sensor—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
W.SPEED.
B4M0509
2. RL.SS OR MV
—Irregular signals from rear left ABS sensor in
decompressing mode—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty hydraulic unit
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS OR
MV.
B4M0510
3. RL.SS OVER
—Excessive speed of rear left ABS sensor signal—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
NOTE:
The procedures used are the same as those for FR.SS
OVER.
106
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2318 of 2890
B4M0511
L: TROUBLE CODE 31
FR.IN VALVE
—Faulty front right inlet solenoid valve—
DIAGNOSIS:
Faulty harness/connector
Faulty solenoid valve in hydraulic unit
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
ABS sequence control does not operate.
TCS sequence control does not operate.
Air bleeding mode does not operate.
1. Check resistance of solenoid valve.
OK
Not OK
Replace hydraulic unit.
2. Check body short of solenoid valve.
OK
Not OK
Replace hydraulic unit.
3. Check body short of harness.
OK
Not OK
Repair harness.
4. Check harness between ABS/TCS control
module and hydraulic unit.
OK
Not OK
Repair harness/connector.
Replace ABS/TCS control module.
107
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2319 of 2890
B4M0512
M: TROUBLE CODE 32
FR.OUT VALVE
—Faulty front right outlet solenoid valve—
DIAGNOSIS:
Faulty harness/connector
Faulty solenoid valve in hydraulic unit
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
ABS sequence control does not operate.
TCS sequence control does not operate.
Air bleeding mode does not operate.
1. Check resistance of solenoid valve.
OK
Not OK
Replace hydraulic unit.
2. Check body short of solenoid valve.
OK
Not OK
Replace hydraulic unit.
3. Check body short of harness.
OK
Not OK
Repair harness.
4. Check harness between ABS/TCS control
module and hydraulic unit.
OK
Not OK
Repair harness/connector.
Replace ABS/TCS control module.
B4M0513
N: TROUBLE CODE 33
FL.IN VALVE
—Faulty front left inlet solenoid valve—
DIAGNOSIS:
Faulty harness/connector
Faulty solenoid valve in hydraulic unit
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
ABS sequence control does not operate.
TCS sequence control does not operate.
Air bleeding mode does not operate.
NOTE:
The procedures used are the same as those for FR.IN
VA LV E .
108
4-4bBRAKES
10. Diagnostic Chart with Select Monitor
Page 2320 of 2890
B4M0514
O: TROUBLE CODE 34
FL.OUT VALVE
—Faulty front left outlet solenoid valve—
DIAGNOSIS:
Faulty harness/connector
Faulty solenoid valve in hydraulic unit
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
ABS sequence control does not operate.
TCS sequence control does not operate.
Air bleeding mode does not operate.
NOTE:
The procedures used are the same as those for FR.OUT
VA LV E .
B4M0515
P: TROUBLE CODE 35
RR.IN VALVE
—Faulty rear right inlet solenoid valve—
DIAGNOSIS:
Faulty harness/connector
Faulty solenoid valve in hydraulic unit
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS and TCS do not operate.
ABS sequence control does not operate.
TCS sequence control does not operate.
Air bleeding mode does not operate.
NOTE:
The procedures used are the same as those for FR.IN
VA LV E .
109
4-4bBRAKES
10. Diagnostic Chart with Select Monitor