Infiniti FX35 / FX45. Manual - part 264

BRC-42

< SERVICE INFORMATION >

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS FOR SYSTEM

DTC C1123 FR RH OUT ABS SOL

INFOID:0000000001569707

Refer to 

BRC-40, "DTC C1120 FR LH IN ABS SOL"

.

DTC C1124 RR LH IN ABS SOL

INFOID:0000000001569708

Refer to 

BRC-40, "DTC C1120 FR LH IN ABS SOL"

.

DTC C1125 RR LH OUT ABS SOL

INFOID:0000000001569709

Refer to 

BRC-40, "DTC C1120 FR LH IN ABS SOL"

.

DTC C1126 RR RH IN ABS SOL

INFOID:0000000001569710

Refer to 

BRC-40, "DTC C1120 FR LH IN ABS SOL"

.

DTC C1127 RR RH OUT ABS SOL

INFOID:0000000001569711

Refer to 

BRC-40, "DTC C1120 FR LH IN ABS SOL"

.

DTC C1130 ENGINE SIGNAL 1

INFOID:0000000001327678

INSPECTION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULTS

Check the self-diagnostic results.

Is the above displayed in the self-diagnosis display items?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

CHECK ENGINE SYSTEM

1.

Perform an ECM self-diagnosis and repair or replace malfunctioning items. Perform ECM self-diagnosis
again.

2.

Perform ABS actuator and electric unit (control unit) self-diagnosis again.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace malfunctioning items. Perform the self-diagnosis again.

DTC C1131 ENGINE SIGNAL 2

INFOID:0000000001569712

Refer to 

BRC-42, "DTC C1130 ENGINE SIGNAL 1"

.

DTC C1132 ENGINE SIGNAL 3

INFOID:0000000001569713

Refer to 

BRC-42, "DTC C1130 ENGINE SIGNAL 1"

.

DTC C1133 ENGINE SIGNAL 4

INFOID:0000000001569714

Refer to 

BRC-42, "DTC C1130 ENGINE SIGNAL 1"

.

DTC C1136 ENGINE SIGNAL 6

INFOID:0000000001569715

Refer to 

BRC-42, "DTC C1130 ENGINE SIGNAL 1"

.

Self-diagnostic results

ENGINE SIGNAL 1

ENGINE SIGNAL 2

ENGINE SIGNAL 3

ENGINE SIGNAL 4

ENGINE SIGNAL 6

TROUBLE DIAGNOSIS FOR SYSTEM

BRC-43

< SERVICE INFORMATION >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

DTC C1140 ACTUATOR RLY

INFOID:0000000001569716

Refer to 

BRC-37, "DTC C1111 PUMP MOTOR"

.

DTC C1142 PRESS SEN CIRCUIT

INFOID:0000000001327680

INSPECTION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULTS

Check the self-diagnostic results.

Is the above displayed in the self-diagnosis display items?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

CHECK STOP LAMP SWITCH CONNECTOR

1.

Disconnect stop lamp switch connector and ABS actuator and electric unit (control unit) connector, check
terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.

2.

Reconnect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis again.

OK or NG

OK

>> Connector terminal contact is loose, damaged, open or shorted.

NG

>> GO TO 3.

3.

CHECK STOP LAMP SWITCH

1.

Turn ignition switch OFF and disconnect stop lamp switch har-
ness connector.

2.

Operate stop lamp switch and check continuity between stop
lamp switch harness connector terminals.

OK or NG

OK

>> GO TO 4.

NG

>> Replace stop lamp switch. Refer to 

BR-6, "Component"

.

4.

CHECK STOP LAMP SWITCH CIRCUIT

1.

Turn ignition switch OFF and disconnect stop lamp switch con-
nector E210 and ABS actuator and electric unit (control unit)
connector E56.

2.

Check continuity between stop lamp switch harness connector
and ABS actuator and electric unit (control unit) harness con-
nector. 

OK or NG

OK

>> GO TO 5.

NG

>> Open or short in harness between stop lamp switch and ABS actuator and electric unit (control

unit). Repair or replace applied harness.

Self-diagnostic results

PRESS SEN CIRCUIT

Terminal

Condition

Continuity

1 

−

 2

Release stop lamp switch
(When brake pedal is depressed.)

Yes

Push stop lamp switch
(When brake pedal is released.)

No

SFIA3392E

ABS actuator and electric unit (control unit)

Stop lamp switch

Continuity

41

2

Yes

SFIA1436E

BRC-44

< SERVICE INFORMATION >

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS FOR SYSTEM

5.

CHECK PRESSURE SENSOR CONNECTOR

1.

Disconnect pressure sensor connector and ABS actuator and electric unit (control unit) connector, check
terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.

2.

Reconnect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis again.

OK or NG

OK

>> Connector terminal contact is loose, damaged, open or shorted.

NG

>> GO TO 6.

6.

CHECK PRESSURE SENSOR HARNESS

1.

Turn ignition switch OFF and disconnect pressure sensor con-
nector E53 and ABS actuator and electric unit (control unit) con-
nector E56.

2.

Check continuity between ABS actuator and electric unit (control
unit) harness connector and pressure sensor harness connec-
tor.

OK or NG

OK

>> GO TO 7.

NG

>> If the open or short in harness, repair or replace harness.

7.

CHECK PRESSURE SENSOR

1.

Connect pressure sensor connector and ABS actuator and electric unit (control unit) connector.

2.

Perform “DATA MONITOR” of the “PRESS SENSOR” to check if the status is normal.

OK or NG

OK

>> INSPECTION END

NG

>> Pressure sensor is damaged or malfunctioning, replace pressure sensor.

DTC C1143 ST ANG SEN CIRCUIT

INFOID:0000000001327681

INSPECTION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULTS

Check the self-diagnostic results.

Is the above displayed in the self-diagnosis item?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

CHECK CONNECTOR

1.

Disconnect steering angle sensor connector and ABS actuator and electric unit (control unit) connector
and check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found,
repair or replace terminal.

ABS actuator and electric unit (control unit)

Pressure sensor

Continuity

19

1

Yes

20

2

18

3

SFIA1188E

Condition

Data monitor display

When brake pedal is depressed.

0 to 170 bar

When brake pedal is released.

Approx. 0 bar

Self-diagnostic results

ST ANG SEN CIRCUIT

ST ANG SEN COM CIR

TROUBLE DIAGNOSIS FOR SYSTEM

BRC-45

< SERVICE INFORMATION >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

2.

Reconnect connectors and perform an ABS actuator and electric unit (control unit) self-diagnosis again.

OK or NG

OK

>> Connector terminal contact is loose, damaged, open or shorted.

NG

>> GO TO 3.

3.

CHECK STEERING ANGLE SENSOR HARNESS

1.

Check CAN communication circuit. Refer to 

BRC-48, "DTC U1000 CAN COMM CIRCUIT"

.

2.

Turn ignition switch OFF and disconnect steering angle sensor connector M14.

3.

Check continuity between steering angle sensor harness con-
nector and ground.

4.

Check voltage between steering angle sensor harness connec-
tor and ground.

OK or NG

OK

>> GO TO 4.

NG

>> If the open or short in harness, repair or replace har-

ness.

4.

CHECK STEERING WHEEL PLAY

Check steering wheel play. Refer to 

PS-9, "On-Vehicle Inspection and Service"

.

OK or NG

OK

>> GO TO 5

NG

>> Adjust steering wheel play.

5.

PERFORM DATA MONITOR

1.

Connect steering angle sensor and ABS actuator and electric unit (control unit) connectors.

2.

Perform “DATA MONITOR” of the “STEERING ANGLE SIGNAL” to check if the status is normal.

OK or NG

OK

>> Perform ABS actuator and electric unit (control unit) self-diagnosis again.

NG

>> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to 

BRC-

8, "Adjustment of Steering Angle Sensor Neutral Position"

.

DTC C1144 ST ANG SEN SIGNAL

INFOID:0000000001327688

INSPECTION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULTS (1)

Check self-diagnostic results.

Steering angle sensor

Ground

Continuity

2

—

Yes

SFIA1189E

Steering angle sensor

Ground

Voltage

3

—

Battery voltage

(Approx. 12 V)

SFIA1190E

Steering condition

Data monitor display

Straight-ahead

-3.5 deg - +3.5 deg

Turn wheel to the right by 90

°

.

Approx. -90 deg

Turn wheel to the left by 90

°

.

Approx. +90 deg