Infiniti F50. Manual — part 276
TROUBLE DIAGNOSIS
BRC-47
C
D
E
G
H
I
J
K
L
M
A
B
BRC
3.
CHECKING YAW RATE/SIDE G-SENSOR CIRCUIT
Check “DATA MONITOR” for yaw rate /side G-sensor. Check that results are normal.
OK or NG
OK
>> Perform VDC/TCS/ABS control unit self-diagnosis again.
NG
>> Malfunction of yaw rate/side G-sensor. Replace sensor and perform VDC/TCS/ABS control unit
self-diagnosis again.
Inspection 7 Solenoid, VDC Switching Valve, and Circuits
EFS0023W
Inspection Procedure
1.
CHECKING SELF-DIAGNOSIS RESULTS (1)
Check self-diagnosis results.
Do above items appear on self-diagnosis results display?
YES
>> GO TO 2.
NO
>> Inspection is completed.
2.
CHECKING SELF-DIAGNOSIS RESULTS (2)
1.
Disconnect VDC/TCS/ABS control unit connector E218 and VDC actuator connector E21, E22, E23.
Then reconnect them securely.
2.
Reconnect connectors securely and perform self-diagnosis again.
Do any self-diagnosis items appear?
YES
>> GO TO 3.
NO
>> Poor connection. Repair or replace applicable connector.
Vehicle condition
Yaw rate sensor
(Data monitor standard)
Side G-sensor
(Data monitor standard)
Stopped
– 4 to +4 deg/s
– 1.1 to +1.1 m/s
2
Turning right
Negative value
Negative value
Turning left
Positive value
Positive value
Self-diagnosis results
CONSULT-II display items
Front LH inlet ABS solenoid system
Front LH outlet ABS solenoid system
Rear RH inlet ABS solenoid system
Rear RH outlet ABS solenoid system
Front RH inlet ABS solenoid system
Front RH outlet ABS solenoid system
Rear LH inlet ABS solenoid system
Rear LH outlet ABS solenoid system
Primary USV solenoid system
Secondary USV solenoid system
Primary MAV solenoid system
Secondary MAV solenoid system
SFIA0611E
BRC-48
TROUBLE DIAGNOSIS
3.
CHECKING SOLENOID CIRCUIT
1.
Disconnect VDC actuator connector E21,E22 and VDC/TCS/ABS control unit connector E218.
2.
Check continuity between VDC/TCS/ABS control unit harness
connector E218 and VDC actuator harness connector E21,E22.
OK or NG
OK
>> GO TO 4.
NG
>> Open or short in harness between VDC/TCS/ABS control unit and VDC actuator
SFIA0869E
VDC/TCS/ABS control unit
(Harness connector E218)
VDC actuator
(Harness connector E21, E22)
Continuity
26 (W/G)
3 (W/G)
Yes
5 (G/Y)
1 (G/Y)
Yes
6 (L/W)
7 (L/W)
Yes
53 (P)
5 (P)
Yes
55 (R/Y)
15 (R/Y)
Yes
3 (Y/G)
14 (Y/G)
Yes
4 (BR)
17 (BR)
Yes
25 (LG)
16 (LG)
Yes
52 (PU)
27 (PU)
Yes
54 (W)
28 (W)
Yes
50 (R/G)
25 (R/G)
Yes
49 (W/R)
26 (W/R)
Yes
TROUBLE DIAGNOSIS
BRC-49
C
D
E
G
H
I
J
K
L
M
A
B
BRC
4.
CHECKING ACTUATOR SOLENOID
1.
Disconnect VDC actuator connector.
2.
Check resistance of VDC actuator solenoid.
OK or NG
OK
>> Perform VDC/TCS/ABS control unit self-diagnosis again.
NO
>> Replace VDC actuator assembly.
Inspection 8 Actuator Motor, Motor Relay, and Circuit
EFS001ZJ
Inspection Procedure
1.
CHECKING SELF-DIAGNOSIS RESULTS (1)
Check self-diagnosis results.
Do “PUMP MOTOR” and “MOTOR RELAY SYSTEM” appear in self-diagnosis results display?
YES
>> GO TO 2.
NO
>> Inspection is completed.
SFIA0965E
VDC actuator
(Actuator side connector)
VDC actuator
(Actuator side connector)
Resistance value
7
19
6.0 - 11
Ω
3
19
6.0 - 11
Ω
5
19
6.0 - 11
Ω
1
19
6.0 - 11
Ω
17 19
3.0
-
5.0
Ω
15 19
3.0
-
5.0
Ω
16 19
3.0
-
5.0
Ω
14
19
3.0 - 5.0
Ω
27 19
3.0
-
5.0
Ω
28 19
3.0
-
5.0
Ω
25
19
6.0 - 11
Ω
26
19
6.0 - 11
Ω
Self-diagnosis results
CONSULT-II display items
Pump motor, motor relay system
BRC-50
TROUBLE DIAGNOSIS
2.
CHECKING SELF-DIAGNOSIS RESULTS (2)
1.
Disconnect VDC/TCS/ABS control unit connector E218 and VDC relay box connector E55, E56, E57.
Then reconnect them securely.
2.
Reconnect connectors securely and perform self-diagnosis again.
Do any self-diagnosis items appear?
YES
>> GO TO 3.
NO
>> Poor connection. Repair or replace applicable connector.
3.
CHECKING ABS MOTOR AND MOTOR RELAY POWER SYSTEM
1.
Disconnect VDC relay box connector E57.
2.
Check voltage between VDC relay box harness connector E57
and body ground.
OK or NG
OK
>> GO TO 4.
NG
>>
●
Check fuse 50A.
●
Check that there is continuity between battery and relay unit terminal No. 10 (W/L).
4.
CHECKING ABS MOTOR AND MOTOR RELAY CIRCUIT
1.
Disconnect VDC/TCS/ABS control unit E218 and VDC relay box connector E56.
2.
Check continuity between VDC/TCS/ABS control unit harness
connector E218 and VDC relay box harness connector E56.
OK or NG
OK
>> GO TO 5.
NG
>> Open or short in harness between VDC/TCS/ABS control unit and relay unit/actuator
SFIA0875E
VDC relay box
(Harness connector E57)
Body ground
Voltage
10 (W/L)
—
Battery voltage (Approx. 12V)
SFIA0876E
VDC/TCS/ABS control unit
(Harness connector E218)
VDC relay box
(Harness connector E56)
Continuity
20 (R/B)
4 (R/B)
Yes
7 (G/W)
8 (G/W)
Yes
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