Infiniti I35 (A33). Manual — part 120
ABS Actuator Solenoid Valve or Solenoid Valve
Relay
=NHBR0171
DIAGNOSTIC PROCEDURE
NHBR0171S01
1
INSPECTION START
Solenoid valve relay inspection
SBR159F
©
GO TO 2.
2
CHECK SOLENOID VALVE POWER SUPPLY CIRCUIT
Check 40A [E] fusible link (ABS ACTR) for ABS solenoid valve relay. For fusible link layout, refer to POWER SUPPLY
ROUTING in EL section.
Is fusible link OK?
Yes
©
GO TO 3.
No
©
GO TO 7.
3
CHECK FUSE
Check 10A fuse No. 31. For fuse layout, refer to “POWER SUPPLY ROUTING” in EL section.
Is fuse OK?
Yes
©
GO TO 4.
No
©
GO TO 9.
4
CHECK CONNECTOR
1. Disconnect connectors from ABS actuator and electric unit (control unit) connector E162. Check terminals for damage
or loose connection. Then reconnect connectors.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Yes
©
GO TO 5.
No
©
INSPECTION END
GI
MA
EM
LC
EC
FE
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
ABS Actuator Solenoid Valve or Solenoid Valve Relay
BR-65
5
CHECK GROUND CIRCUIT
Refer to ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) in Ground Circuit Check, BR-57.
Is ground circuit OK?
Yes
©
GO TO 6.
No
©
Repair harness and connectors.
6
CHECK SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector E162.
2. Check voltage between ABS actuator and electric unit (control unit) harness connector E162 terminals 15 (GY) and 18
(L/B) and ground.
SBR160F
Does battery voltage exist?
Yes
©
Replace ABS actuator and electric unit (control unit).
No
©
Check the following.
I
Harness connector E162
I
Harness for open or short between ABS actuator and electric unit (control unit) and
fusible link
If NG, repair harness or connectors.
7
REPLACE FUSIBLE LINK
Replace fusible link.
Does the fusible link blow out when ignition switch is turned “ON”?
Yes
©
GO TO 8.
No
©
INSPECTION END
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
ABS Actuator Solenoid Valve or Solenoid Valve Relay (Cont’d)
BR-66
8
CHECK RELAY UNIT POWER SUPPLY CIRCUIT FOR SHORT
1. Disconnect battery cable and ABS actuator and electric unit (control unit) connector E162.
2. Check continuity between ABS actuator and electric unit (control unit) harness connector E162 terminal 15 (GY) and 18
(L/B) and ground.
SBR161F
Does continuity exist?
Yes
©
Check the following.
I
Harness connector E162
I
Harness for open or short between ABS actuator and electric unit (control unit) and
fusible link
If NG, repair harness or connectors.
No
©
Replace ABS actuator and electric unit (control unit).
9
REPLACE FUSE
Replace fuse.
Does the fuse blow out when ignition switch is turned “ON”?
Yes
©
Check the following.
I
Harness connector E162
I
Harness for open or short between ABS actuator and electric unit (control unit) and
fuse
If NG, repair harness or connectors.
No
©
INSPECTION END
GI
MA
EM
LC
EC
FE
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
ABS Actuator Solenoid Valve or Solenoid Valve Relay (Cont’d)
BR-67
Motor Relay or Motor
=NHBR0172
DIAGNOSTIC PROCEDURE
NHBR0172S01
1
INSPECTION START
ABS motor relay inspection
SBR162F
©
GO TO 2.
2
CHECK MOTOR POWER SUPPLY CIRCUIT
Check 40A [D] fusible link (ABS MTR) for ABS motor relay. For fusible link layout, refer to POWER SUPPLY ROUTING in
EL section.
Is fusible link OK?
Yes
©
GO TO 3.
No
©
GO TO 6.
3
CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit (control unit) connector E162. Check terminals for damage or loose connec-
tion. Then reconnect connectors.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Yes
©
GO TO 4.
No
©
INSPECTION END
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
TCS
Motor Relay or Motor
BR-68
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