Infiniti G20 (P11). Manual — part 121
ABS Actuator Solenoid Valve or Solenoid Valve
Relay
=NCBR0100
DIAGNOSTIC PROCEDURE
NCBR0100S01
Malfunction code No. 41, 45, 55, 42, 46, 56, 63, 51, 52
1
INSPECTION START
Solenoid valve relay inspection
SBR580E
©
GO TO 2.
2
CHECK SOLENOID VALVE POWER SUPPLY CIRCUIT
Check 40A [f] 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 7.5A fuse No. 3. 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 control unit and ABS actuator. 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
CL
MT
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
ABS
ABS Actuator Solenoid Valve or Solenoid Valve Relay
BR-59
5
CHECK GROUND CIRCUIT
Refer to ABS ACTUATOR AND ELECTRIC UNIT in Ground Circuit Check, BR-54.
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 connector.
2. Check voltage between ABS actuator and electric unit connector terminal 18 and ground.
SBR052EE
Does battery voltage exist?
Yes
©
Replace ABS actuator and electric unit.
No
©
Check the following.
I
Harness connector E55
I
Harness for open or short between ABS actuator and electric 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
ABS
ABS Actuator Solenoid Valve or Solenoid Valve Relay (Cont’d)
BR-60
8
CHECK RELAY UNIT POWER SUPPLY CIRCUIT
1. Disconnect ABS actuator and electric unit connector.
2. Check continuity between ABS actuator and electric unit connector terminal 18 and ground.
SBR052EE
Does continuity exist?
Yes
©
Replace ABS actuator and electric unit.
No
©
Check the following.
I
Harness connector E55
I
Harness for open or short between ABS actuator and electric unit and fusible link
If NG, repair harness or connectors.
9
REPLACE FUSE
Replace fuse.
Does the fuse blow out when ignition switch is turned “ON”?
Yes
©
Check the following.
I
Harness connector E55
I
Harness for open or short between ABS actuator and electric unit and fuse
If NG, repair harness or connectors.
No
©
INSPECTION END
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
ABS
ABS Actuator Solenoid Valve or Solenoid Valve Relay (Cont’d)
BR-61
Motor Relay or Motor
=NCBR0101
DIAGNOSTIC PROCEDURE
NCBR0101S01
Malfunction code No. 61
1
INSPECTION START
ABS motor relay inspection
SBR581E
©
GO TO 2.
2
CHECK MOTOR POWER SUPPLY CIRCUIT
Check 40A [h] 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 connector. Check terminals for damage or loose connection. 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
ABS
Motor Relay or Motor
BR-62
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