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![INFINITI FX35 2004 Service Manual BRC-36
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
ON and OFF Timing for ABS Warning Lamp, VDC OFF Indicator Lamp, SLIP Indicator Lamp,
Brake Warning Lamp
×: ON –: OFF
N INFINITI FX35 2004 Service Manual BRC-36
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
ON and OFF Timing for ABS Warning Lamp, VDC OFF Indicator Lamp, SLIP Indicator Lamp,
Brake Warning Lamp
×: ON –: OFF
N](/manual-img/42/57021/w960_57021-1160.png)
BRC-36
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
ON and OFF Timing for ABS Warning Lamp, VDC OFF Indicator Lamp, SLIP Indicator Lamp,
Brake Warning Lamp
×: ON –: OFF
NOTE:
1. Brake warning lamp will turn on in case of operating parking brake (switch turned on) or of actuating brake
fluid level switch (brake fluid is insufficient).
2. After starting engine, turn OFF.
Basic InspectionAFS001SS
BASIC INSPECTION 1: BRAKE FLUID AMOUNT, LEAKS, AND BRAKE PADS INSPECTION
1. Check fluid level in the brake reservoir tank. If fluid level is low, refill brake fluid.
2. Check brake piping and around ABS actuator and electric unit (control unit) for leaks. If there is leaking or
oozing fluid, check the following items.
If ABS actuator and electric unit (control unit) connection is loose, tighten piping to the specified torque
and re-perform the leak inspection to make sure there are no leaks.
If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw,
replace the damaged part and re-perform the leak inspection to make sure there are no leaks.
When there is fluid leaking or oozing from a part other than ABS actuator and electric unit (control unit)
connection, if fluid is just oozing out, use a clean cloth to wipe off the oozing fluid and re-check for
leaks. If fluid is still oozing out, replace the damaged part.
When there is fluid leaking or oozing at ABS actuator and electric unit (control unit), if fluid is just oozing
out, use a clean cloth to wipe off oozing fluid and re-check for leaks. If fluid is still oozing out, replace
ABS actuator and electric unit (control unit) body.
CAUTION:
ABS actuator and electric unit (control unit) body cannot be disassembled.
3. Check brake pad degree of wear. Refer to BR-20, "
PAD WEAR INSPECTION" in “Front Disc Brake” and
BR-25, "
PAD WEAR INSPECTION" in “Rear Disc Brake”
BASIC INSPECTION 2: POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPEC-
TION
Make sure battery positive cable, negative cable and ground connection are not loose. If looseness is
detected, tighten the cables. In addition, check the battery voltage to make sure it has not dropped and alter-
nator is normal.
ConditionABS warning
lampVDC OFF indi-
cator lampSLIP indicator
lampBrake warning
lamp [Note 1]Remarks
Ignition SW OFF. – – – — —
Approx. 2 seconds after igni-
tion switch is turned ON.×××× [Note 2] —
Approx. 2 seconds later after
ignition switch ON.–––× [Note 2]Go out 2 seconds after
ignition switch is turned
ON.
VDC OFF SW is turned ON.
(VDC/TCS function is OFF.)–×–— —
VDC/TCS/ABS error.×××—There is an ABS actua-
tor and electric unit
(control unit) error.
(Power, ground or sys-
tem malfunction)
When VDC/TCS is not func-
tioning normally.–××——
EBD error.××××—
Page 1164 of 4449
![INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS
BRC-39
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Revision: 2004 November 2004 FX35/FX45
5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel
s INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS
BRC-39
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Revision: 2004 November 2004 FX35/FX45
5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel
s](/manual-img/42/57021/w960_57021-1163.png)
TROUBLE DIAGNOSIS
BRC-39
[VDC/TCS/ABS]
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BRC
Revision: 2004 November 2004 FX35/FX45
5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel
sensor connector E46 (FR-LH), E33 (FR-RH) or B69 (RR) and
ABS actuator and electric unit (control unit) connector.
2. Check continuity between terminals. (Also check the continuity
when steering wheel is turned right and left and when sensor
harness inside wheel well is moved.)
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness and connector that have malfunction.
6. CHECK WHEEL SENSOR
1. Replace wheel sensor that resulted in malfunction by self-diagnosis.
2. Reconnect connectors, drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute, and then
perform self-diagnosis.
Is above displayed on self-diagnosis display?
OK >> Wheel sensor has malfunction.
NG >>
Replace ABS actuator and electric unit (control unit).
Perform to self-diagnosis again, and make sure that the result shows “NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED”.
Inspection 2: Engine SystemAFS001SU
DTC C1130-C1133, C1136
SFIA1186E
Power system Signal system Ground system
WheelABS actuator
and electric unit
(control unit)
harness con-
nector E56Wheel sensor
harness con-
nector E46,
E33 or B69ABS actuator
and electric unit
(control unit)
harness con-
nector E56Wheel sensor
harness con-
nector E46,
E33 or B69ABS actuator and
electric unit (con-
trol unit) harness
connector E56
(signal)ABS actuator
and electric unit
(control unit)
harness con-
nector E56
(ground)
Front RH (E33) 34 (W) 1 (W) 33 (B) 2 (B) 33 (B), 34 (W)
16 (B), 47 (B) Front LH (E46) 45 (R) 1 (R) 46 (G) 2 (G) 45 (R), 46 (G)
Rear RH (B69) 43 (Y) 1 (Y) 42 (BR) 2 (BR) 43 (Y), 42 (BR)
Rear LH (B69) 36 (L) 3 (L) 37 (P) 4 (P) 36 (L), 37 (P)
Power system : Continuity should exist.
Signal system : Continuity should exist.
Ground system : Continuity should not exist.
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![INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS
BRC-47
[VDC/TCS/ABS]
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Revision: 2004 November 2004 FX35/FX45
3. CHECKING SOLENOID POWER AND GROUND
1. Disconnect ABS actuator and electric unit (control uni INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS
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Revision: 2004 November 2004 FX35/FX45
3. CHECKING SOLENOID POWER AND GROUND
1. Disconnect ABS actuator and electric unit (control uni](/manual-img/42/57021/w960_57021-1171.png)
TROUBLE DIAGNOSIS
BRC-47
[VDC/TCS/ABS]
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Revision: 2004 November 2004 FX35/FX45
3. CHECKING SOLENOID POWER AND GROUND
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check voltage between ABS actuator and electric unit (control
unit) harness connector E56 and ground.
3. Check continuity between ABS actuator and electric unit (control
unit) harness connector E56 and ground.
OK or NG
OK >> Perform self-diagnosis again. If the same results
appear, replace ABS actuator and electric unit (control
unit). Refer to BRC-60, "
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)" .
NG >> Repair or replace harness or connectors.
Inspection 8: Actuator Motor SystemAFS001T0
DTC C1111, C1140
Inspection Procedure
1. CHECK SELF-DIAGNOSIS RESULTS (1)
Check the self-diagnostic results.
Is the above displayed in the self-diagnostic display items?
YES >> GO TO 2.
NO >> Inspection is completed.
2. CHECK SELF-DIAGNOSIS RESULTS (2)
1. Disconnect ABS actuator and electric unit (control unit) connector. Then reconnect it securely.
2. Perform self-diagnosis again.
Do any self-diagnosis item appear?
YES >> GO TO 3.
NO >> Poor connection. Repair or replace the applicable connector.ABS actuator and electric
unit (control unit)
(Harness connector E56)GroundVo l ta g e ( V )
(Approx.)
32 (R) — 12 V
SFIA1196E
ABS actuator and electric
unit (control unit)
(Harness connector E56)Ground Continuity
16 (B) — Yes
47 (B) — Yes
SFIA1197E
Self-diagnostic results
PUMP MOTOR
ACTUATOR RLY
Page 1173 of 4449
![INFINITI FX35 2004 Service Manual BRC-48
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
3. CHECK ABS MOTOR AND MOTOR RELAY POWER SYSTEM
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. INFINITI FX35 2004 Service Manual BRC-48
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
3. CHECK ABS MOTOR AND MOTOR RELAY POWER SYSTEM
1. Disconnect ABS actuator and electric unit (control unit) connector.
2.](/manual-img/42/57021/w960_57021-1172.png)
BRC-48
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
3. CHECK ABS MOTOR AND MOTOR RELAY POWER SYSTEM
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check voltage between ABS actuator and electric unit (control
unit) harness connector E56 and ground.
3. Check continuity between ABS actuator and electric unit (control
unit) harness connector E56 and ground.
OK or NG
OK >> Perform self-diagnosis again. If the same result
appears, replace ABS actuator and electric unit (control
unit). Refer to BRC-60, "
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)" .
NG >> Repair harness or connectors.
Inspection 9: ABS Actuator and Electric Unit (Control Unit) Power Supply and
Ground System
AFS001T1
DTC C1109
Inspection Procedure
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Does
“BATTERY VOLTAGE” appear in self-diagnostic results display?
YES >> GO TO 2.
NO >> INSPECTION END
2. STARTING INSPECTION
1. Disconnect ABS actuator and electric unit (control unit) connector. Then reconnect it securely.
2. Perform self-diagnosis.
Do any self-diagnosis item appear?
YES >> GO TO 3.
NO >> Poor connection. Repair or replace connector.ABS actuator and electric
unit (control unit)
(Harness connector E56)GroundVoltage (V)
(Approx.)
1 (Y)
32 (R)—12 V
SFIA1198E
ABS actuator and electric
unit (control unit)
(Harness connector E56)Ground Continuity
16 (B) — Yes
47 (B) — Yes
SFIA1197E
Self-diagnostic results
BATTERY VOLTAGE
Page 1174 of 4449
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BRC-49
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Revision: 2004 November 2004 FX35/FX45
3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY (1)
1. Disconnect ABS actua INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS
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3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY (1)
1. Disconnect ABS actua](/manual-img/42/57021/w960_57021-1173.png)
TROUBLE DIAGNOSIS
BRC-49
[VDC/TCS/ABS]
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Revision: 2004 November 2004 FX35/FX45
3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY (1)
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Turn ignition switch OFF. Check voltage between ABS actuator
and electric unit (control unit) harness connector E56 and
ground.
3. Turn ignition switch ON (but do not start engine). Check voltage
between ABS actuator and electric unit (control unit) harness
connector E56 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
4. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND SYSTEM
Check ABS actuator and electric unit (control unit) ground system.
OK or NG
OK >> Perform ABS actuator and electric unit (control unit) self-
diagnosis again.
NG >> Repair or replace harness or connectors.
5. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY (2)
1. Check fuse 10A (terminal 4) and 30A (terminal 32).
2. Turn ignition switch OFF and check continuity between battery
positive terminal and ABS actuator and electric unit (control unit)
harness connector E56.
OK or NG
OK >> Check for non-standard conditions in battery (terminal
looseness, low voltage, etc.) and alternator.
NG >>
Replace fuse 10A or 30A.
Open or short in harness. ABS actuator and electric
unit (control unit)
(Harness connector E56)GroundVoltage (V)
(Approx.)
32 (R) — 12 V
ABS actuator and electric
unit (control unit)
(Harness connector E56)GroundVoltage (V)
(Approx.)
4 (G) — 12 V
SFIA1200E
ABS actuator and electric
unit (control unit)
(Harness connector E56)Ground Continuity
16 (B) — Yes
SFIA1434E
ABS actuator and elec-
tric unit (control unit)
(Harness connector E56)Battery positive
terminalContinuity
4 (G), 32 (R) — Yes
SFIA1435E
Page 1187 of 4449
BRC-62
[VDC/TCS/ABS]
G SENSOR
Revision: 2004 November 2004 FX35/FX45
G SENSORPFP:47930
Removal and InstallationAFS001TG
REMOVAL
1. Remove center console. Refer to IP-12, "(H) Center Console" .
2. Disconnect G-sensor harness connector.
3. Remove G-sensor mounting bolts. Then remove G-sensor from
vehicle.
CAUTION:
Do not drop or strike G-sensor, because it has little endur-
ance to impact.
Do not use power tool etc., because G-sensor is weak for
the impact.
INSTALLATION
To install, follow procedure for removal in reverse order.
CAUTION:
Do not drop or strike G-sensor, because it has little endurance to impact.
NOTE:
After performing above works, calibrate decel G-sensor (AWD model). Refer to BRC-6, "Calibration of
Decel G-sensor (AWD Model)" .
PFIA0602E
Page 1195 of 4449
CO-6
[VQ35DE]
PREPARATION
Revision: 2004 November 2004 FX35/FX45
Commercial Service ToolsABS004T5
Tool nameDescription
Power toolLoosening bolts and nuts
Radiator cap tester Checking radiator and radiator cap
PBIC0190E
PBIC1982E
Page 1197 of 4449
CO-8
[VQ35DE]
OVERHEATING CAUSE ANALYSIS
Revision: 2004 November 2004 FX35/FX45
Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system mal-
function
— Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper —
— Blocked radiator grilleInstalled car brassiere
Mud contamination or
paper clogging
Blocked radiator —
Blocked condenser
Blocked air flow
Installed large fog lamp Symptom Check items