wheel INFINITI QX56 2006 Factory Workshop Manual

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
DE
G H
I
J
K L
M
SECTION
A
B
BRC
Revision: November 2009 2006 QX56VDC/TCS/ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Brake System ............................. ..... 3
Precautions When Using CONSULT-II ................ ..... 3
CHECK POINTS FOR USING CONSULT-II .... ..... 3
Precautions for Brake Control ............................. ..... 4
Precautions for CAN System .............................. ..... 4
PREPARATION ...................................................... ..... 6
Special Service Tool ............................................ ..... 6
Commercial Service Tools ................................... ..... 6
SYSTEM DESCRIPTION ............................................ 7 System Components ........................................... ..... 7
ABS Function ........................................................... 8
EBD Function ...................................................... ..... 8
TCS Function ...................................................... ..... 8
VDC Function ...................................................... ..... 8
Fail-Safe Function .................................................... 8 ABS/EBD SYSTEM .......................................... ..... 9
VDC/TCS SYSTEM .......................................... ..... 9
ACTIVE BOOSTER .......................................... ..... 9
Hydraulic Circuit Diagram ................................... ..... 9
CAN COMMUNICATION ....................................... ... 10
System Description ............................................. ... 10
TROUBLE DIAGNOSIS ......................................... ....11
How to Perform Trouble Diagnoses for Quick and
Accurate Repair .................................................. .... 11
INTRODUCTION .............................................. .... 11
WORK FLOW ................................................... ... 12
CLARIFY CONCERN ....................................... ... 13
EXAMPLE OF DIAGNOSIS SHEET ................ ... 13
Component Parts and Harness Connector Location ... 14
Schematic ........................................................... ... 15
Wiring Diagram — VDC — .................................. ... 16
Basic Inspection .................................................. ... 23
BRAKE FLUID LEVEL, FLUID LEAK, AND
BRAKE PAD INSPECTION .............................. ... 23
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION ..........................
... 23
ABS WARNING LAMP, SLIP INDICATOR LAMP
AND VDC OFF INDICATOR LAMP INSPECTION ... 23
Warning Lamp and Indicator Timing .................... ... 24
Control Unit Input/Output Signal Standard .......... ... 24
REFERENCE VALUE FROM CONSULT-II ...... ... 24
CONSULT-II Function (ABS) ............................... ... 28
CONSULT-II BASIC OPERATION PROCEDURE ... 28
SELF-DIAGNOSIS ........................................... ... 29
DATA MONITOR .............................................. ... 32
ACTIVE TEST ..................................................... 35
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ..................................................................... ... 38
Wheel Sensor System Inspection ........................ ... 38
Engine System Inspection ................................... ... 39
ABS/TCS/VDC Control Unit Inspection ............... ... 40
Steering Angle Sensor System ............................ ... 40
Yaw Rate/Side/Decel G Sensor System Inspection ... 41
Solenoid and VDC Change-Over Valve System
Inspection ............................................................ ... 43
Actuator Motor, Motor Relay, and Circuit Inspection ... 44
Stop Lamp Switch System Inspection ................. ... 45
ABS/TCS/VDC Control Unit Power and Ground
Systems Inspection ............................................. ... 46
Brake Fluid Level Switch System Inspection ....... ... 47
Active Booster System Inspection ....................... ... 48
Delta Stroke Sensor System Inspection .............. ... 49
Pressure Sensor System Inspection ................... ... 51
Steering Angle Sensor Safe Mode Inspection ..... ... 53
CAN Communication System Inspection ............. ... 54
ICC System Inspection ........................................ ... 54
Inspection For Self-diagnosis Result "ST ANG SEN
SIGNAL" .............................................................. ... 55
Inspection For Self-diagnosis Result "DECEL G
SEN SET" ............................................................ ... 55
VDC OFF Indicator lamp Does Not Illuminate ..... ... 56
Component Inspection ......................................... ... 56
VDC OFF SWITCH .......................................... ... 56

BRC-2Revision: November 20092006 QX56
TROUBLE DIAGNOSES FOR SYMPTOMS ..........
... 57
ABS Works Frequently ........................................ ... 57
Unexpected Pedal Action .................................... ... 58
Long Stopping Distance ....................................... ... 59
ABS Does Not Work ............................................... 59
Pedal Vibration or ABS Operation Noise ............. ... 59
ABS Warning Lamp Does Not Come On When Igni-
tion Switch Is Turned On ..................................... ... 60
ABS Warning Lamp Stays On When Ignition Switch
Is Turned On ........................................................... 60
Vehicle Jerks During TCS/VDC Activation ........... ... 61
ON-VEHICLE SERVICE ......................................... ... 62
Adjustment of Steering Angle Sensor Neutral Posi-
tion ....................................................................... ... 62
Calibration of Decel G Sensor ............................. ... 62WHEEL SENSORS ................................................
... 64
Removal and Installation ...................................... ... 64
REMOVAL ......................................................... ... 64
INSTALLATION ................................................. ... 64
SENSOR ROTOR ................................................... ... 65
Removal and Installation ...................................... ... 65
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 66 Removal and Installation ...................................... ... 66
REMOVAL ......................................................... ... 66
INSTALLATION ................................................. ... 67
STEERING ANGLE SENSOR ................................ ... 68
Removal and Installation ...................................... ... 68
G SENSOR ............................................................. ... 69
Removal and Installation ...................................... ... 69
REMOVAL ......................................................... ... 69
INSTALLATION ................................................. ... 69

BRC-4
[VDC/TCS/ABS]
PRECAUTIONS
Revision: November 20092006 QX56

If NO, GO TO 5.
2. Is there any indication other than indications relating to CAN communication system in the self-diagnosis results?

If YES, GO TO 3.

If NO, GO TO 4.
3. Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.
4. Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica- tion. Therefor, erase the self-diagnosis results.
5. Diagnose CAN communication system. Refer to BRC-10, "
CAN COMMUNICATION" .
Precautions for Brake ControlEFS004X6

During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.

Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.

Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.

When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnosis. Besides electrical system inspection, check booster operation, brake fluid level, and fluid leaks.

If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.

If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.

If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits or improper wiring.

If the following components are replaced with non-genuine components or modified, the VDC OFF indica-
tor lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorbers, struts, springs, bushings, etc.), tires, wheels (exclude specified
size), components related to brake system (pads, rotors, calipers, etc.), components related to engine
(muffler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).

Driving with broken or excessively worn suspension components, tires or brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not
operate properly.

When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.

When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as
sharp curves on a freeway), the VDC may not operate normally, or the VDC warning lamp and the SLIP
indicator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the
engine.

Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw
rate/side G sensor to indicate a problem. This is not a problem if normal operation can be resumed after
restarting the engine.
Precautions for CAN SystemEFS004X7

Do not apply voltage of 7.0V or higher to terminal to be measured.

Maximum open terminal voltage of tester in use must be less than 7.0V.

Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.

BRC-6
[VDC/TCS/ABS]
PREPARATION
Revision: November 20092006 QX56
PREPARATIONPFP:00002
Special Service ToolEFS005G1
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsEFS005G2
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-45741)
ABS active wheel sensor tester Checking operation of ABS active wheel sen-
sors
WFIA0101E
Tool name
Description
1. Flare nut crowfoot
2. Torque wrench Removing and installing brake piping
a: 10mm (0.39 in)/12mm (0.47 in)
S-NT360

BRC-8
[VDC/TCS/ABS]
SYSTEM DESCRIPTION
Revision: November 20092006 QX56
ABS FunctionEFS004XC

The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during
sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding
obstacles.

If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.

The electrical system can be diagnosed using CONSULT-II.

During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.

Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.

Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
EBD FunctionEFS004XD

Electronic Brake Distribution is a function that detects subtle slippages between the front and rear wheels
during braking, and it improves handling stability by electronically controlling the brake fluid pressure
which results in reduced rear wheel slippage.

If the electrical system malfunctions, the Fail-Safe function is activated, the EBD and ABS become inoper-
ative, and the ABS warning lamp and BRAKE warning lamp are turned on.

The electrical system can be diagnosed using CONSULT-II.

During EBD operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.

Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
TCS FunctionEFS004XE

Spinning of the drive wheels is detected by the ABS actuator and electric unit (control unit) using inputs
from the wheel speed sensors. If wheel spin occurs, the drive wheel right and left brake fluid pressure
control and engine fuel cut are activated while the throttle value is restricted to reduce the engine torque
and decrease the amount of wheel spin. In addition, the throttle opening is controlled to achieve the opti-
mum engine torque.

Depending on road condition, the vehicle may have a sluggish feel. This is normal, because optimum trac-
tion has the highest priority during TCS operation.

TCS may be activated during sudden vehicle acceleration, wide open throttle acceleration, sudden trans-
mission shifts or when the vehicle is driven on a road with a varying surface friction coefficient.

The SLIP indicator lamp flashes to inform the driver of TCS operation.
VDC FunctionEFS004XF

In addition to the ABS/TCS function, the driver steering amount and brake operation amount are detected
from the steering angle sensor and front and rear pressure sensors, and the vehicle's driving status
(amount of under steering/over steering) is determined using inputs from the yaw rate sensor/side G sen-
sor, wheel speed sensors, etc. and this information is used to improve vehicle stability by controlling the
braking and engine torque application to the wheels.

The SLIP indicator lamp flashes to inform the driver of VDC operation.

During VDC operation, the vehicle body and brake pedal may vibrate lightly and a mechanical noise may
be heard. This is normal.

The ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may turn on when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is on a turn table or a ship while the
engine is running or on a steep slope. In this case, restart the engine on a normal road and if the ABS
warning lamp, VDC OFF indicator lamp and SLIP indicator lamp turn off, there is no problem.
Fail-Safe FunctionEFS004XG
CAUTION:
If the Fail-Safe function is activated, perform the Self Diagnosis for ABS/TCS/VDC system.

BRC-24
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Warning Lamp and Indicator TimingEFS004XO
X: ON
—: OFF
Control Unit Input/Output Signal StandardEFS004XP
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short circuited.
ConditionABS
warning lamp VDC OFF
indicator lamp SLIP
indicator lamp Remarks
When the ignition switch is OFF ——— —
After the ignition switch is turned
ON for approx. 1 second ×××
—
After the ignition switch is turned
ON for approx. 2 seconds ——— —
When the VDC OFF switch is
pressed (VDC function OFF) —
×——
ABS/TCS/VDC malfunction ×××
—
×× —When the ABS actuator and elec-
tric unit (control unit) is malfunc-
tioning (power supply or ground
malfunction).
When the VDC is malfunctioning —×× —
Monitor itemDisplay content Data monitor
Note: Error inspection
checklist
Condition Reference value in
normal operation
N POSI SIG PNP switch signal ON/
OFF conditionA/T shift position = N position ON
BRC-54, "
CAN Commu-
nication System Inspec-
tion"A/T shift position = other than
N positionsOFF
P POSI SIG PNP switch signal ON/
OFF conditionA/T shift position P position ON
BRC-54, "
CAN Commu-
nication System Inspec-
tion"A/T shift position = other than
P positionsOFF
GEAR A/T gear position 1st gear
1
—
2nd gear
2
3rd gear 3
4th gear 4
5th gear 5
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR Wheel speedVehicle stopped
0 [km/h (MPH)]
BRC-38, "
Wheel Sensor
System Inspection"Vehicle running (Note 1) Almost in accor-
dance with speed-
ometer display
(within
±10%)
ACCEL POS SIG Open/close condition
of throttle valve (linked
with accelerator pedal).Accelerator pedal not
depressed (ignition switch is
ON)
0%
BRC-54, "
CAN Commu-
nication System Inspec-
tion"Depress accelerator pedal
(ignition switch is ON) 0 to 100%
ENGINE SPEED With engine running With engine stopped
0 rpm
BRC-39, "
Engine System
Inspection"Engine running Almost in accor-
dance with
tachometer display

TROUBLE DIAGNOSISBRC-25
[VDC/TCS/ABS]
C
DE
G H
I
J
K L
M A
B
BRC
Revision: November 2009 2006 QX56
STR ANGLE SIGSteering angle
detected by steering
angle sensorStraight-ahead
Approx. 0 deg
BRC-40, "Steering Angle
Sensor System"Steering wheel turned –756 to 756 deg
YAW RATE SEN Yaw rate detected by
yaw rate sensorVehicle stopped Approx. 0 d/s
BRC-41, "
Yaw Rate/Side/
Decel G Sensor System
Inspection"Vehicle running–100 to 100 d/s
SIDE G-SENSOR Transverse G detected
by side G-sensorVehicle stopped
Approx. 0 m/s
2BRC-41, "Yaw Rate/Side/
Decel G Sensor System
Inspection"Vehicle running–16.7 to 16.7 m/s2
BATTERY VOLT Battery voltage sup-
plied to ABS actuator
and electric unit (con-
trol unit)Ignition switch ON
10 to 16VBRC-46, "
ABS/TCS/VDC
Control Unit Power and
Ground Systems Inspec-
tion"
STOP LAMP SW
Stop lamp switch oper-
ationBrake pedal depressed ON
BRC-45, "
Stop Lamp
Switch System Inspec-
tion"Brake pedal not depressed OFF
OFF SW VDC OFF switch
ON/OFF status VDC OFF switch ON
(When VDC OFF indicator
lamp is ON)
ON
BRC-56, "
VDC OFF
SWITCH"VDC OFF switch OFF
(When VDC OFF indicator
lamp is OFF) OFF
ABS WARN LAMP ABS warning lamp ON
condition (Note 2)ABS warning lamp ON ON
—
ABS warning lamp OFF OFF
MOTOR RELAY Operation status of
motor and motor relayIgnition switch ON or running
(ABS not activated)
OFF
BRC-44, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"Ignition switch ON or engine
running (ABS activated) ON
ACTUATOR RLY Actuator relay opera-
tion statusVehicle stopped (Ignition
switch ON)
OFF
BRC-44, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"Vehicle stopped (Engine run-
ning) ON
OFF LAMP VDC OFF indicator
lamp status (Note 3) When VDC OFF indicator
lamp is ON
ON
BRC-54, "
CAN Commu-
nication System Inspec-
tion"When VDC OFF indicator
lamp is OFF OFF
SLIP LAMP SLIP indicator lamp
status (Note 4)When SLIP indicator lamp is
ON
ON
BRC-54, "
CAN Commu-
nication System Inspec-
tion"When SLIP indicator lamp is
OFF OFF
Monitor item
Display content Data monitor
Note: Error inspection
checklist
Condition Reference value in
normal operation

TROUBLE DIAGNOSISBRC-29
[VDC/TCS/ABS]
C
DE
G H
I
J
K L
M A
B
BRC
Revision: November 2009 2006 QX56
6. Select the required diagnostic location from the “SELECT DIAG
MODE ” screen.
For further information, see the CONSULT-II Operation Manual.
SELF-DIAGNOSIS
Description
If an error is detected in the system, the ABS warning lamp will turn on. In this case, perform self-diagnosis as
follows:
Operation Procedure
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to the data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
3. Turn ignition switch ON.
4. Start engine and drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
5. After stopping the vehicle, with the engine running, touch “START (NISSAN BASED VHCL)”, “ABS ”,
“SELF-DIAG RESULTS ” in order on the CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting the engine or turning on
the ignition switch, “ABS” might not be displayed in the SELECT SYSTEM screen. In this case,
repeat the operation from step 1.
6. The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by touching “PRINT”.)

When “NO DTC IS DETECTED ” is displayed, check the ABS warning lamp, SLIP indicator lamp and
VDC OFF indicator lamp.
7. Conduct the appropriate inspection from the display item list, and repair or replace the malfunctioning component.
8. Start engine and drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute. CAUTION:

When a wheel sensor “short-circuit” is detected, if the vehicle is not driven at 30 km/h (19 MPH)
for at least 1 minute, the ABS warning lamp will not turn off even if the malfunction is repaired.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start the engine and touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-DIAG RESULTS”, “ERASE”
in order on the CONSULT-II screen to erase the error memory.
If “ABS” is not indicated, go to GI-40, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
If the error memory is not erased, re-conduct the operation from step 5.
11. For the final inspection, drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute and confirm that the ABS warning lamp, SLIP indicator lamp, and VDC OFF indicator lamp are off.
BCIA0031E

BRC-30
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Display Item List
Self-diagnostic itemMalfunction detecting condition Check system
FR LH SENSOR 1
[C1104] Circuit of front LH wheel sensor is open, shorted or sensor power
voltage is unusual.
BRC-38, "
Wheel Sensor
System Inspection"
(Note 1)
RR RH SENSOR 1
[C1101]
Circuit of rear RH wheel sensor is open, shorted or sensor power
voltage is unusual.
FR RH SENSOR 1
[C1103] Circuit of front RH wheel sensor is open, shorted or sensor power
voltage is unusual.
RR LH SENSOR 1
[C1102] Circuit of rear LH wheel sensor is open, shorted or sensor power
voltage is unusual.
FR LH SENSOR 2
[C1108] ABS actuator and electric unit (control unit) cannot identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
RR RH SENSOR 2
[C1105] ABS actuator and electric unit (control unit) cannot identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
FR RH SENSOR 2
[C1107] ABS actuator and electric unit (control unit) cannot identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
RR LH SENSOR 2
[C1106] ABS actuator and electric unit (control unit) cannot identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
ABS SENSOR
[C1115] Wheel sensor input is abnormal.
STOP LAMP SW
[C1116] Stop lamp switch or circuit malfunction. BRC-45, "
Stop Lamp
Switch System Inspec-
tion"
DECEL G SEN SET
[C1160]
ABS decel sensor adjustment is incomplete. BRC-55, "Inspection For
Self-diagnosis Result
"DECEL G SEN SET""
ST ANGL SEN SAFE
[C1163]
When steering angle sensor is in safe mode. BRC-53, "Steering Angle
Sensor Safe Mode
Inspection"
ST ANG SEN CIRCUIT
[C1143]
Neutral position of steering angle sensor is dislocated, or steer-
ing angle sensor is malfunctioning. BRC-40, "Steering Angle
Sensor System"
YAW RATE SENSOR
[C1145]Yaw rate sensor has generated an error, or yaw rate sensor sig-
nal line is open or shorted. BRC-41, "Yaw Rate/
Side/Decel G Sensor
System Inspection"

BRC-32
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Note 1. If wheel sensor 2 for each wheel is indicated, check ABS actuator and electric unit (control unit) power
supply voltage in addition to wheel sensor circuit check.
Note 2. If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for
CAN communication line first.
DATA MONITOR
Operation Procedure
1. After turning OFF the ignition switch, connect CONSULT-II and the CONSULT-II CONVERTER to the data
link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
2. Touch “START (NISSAN BASED VHCL) ”, “ABS”, “DATA MONITOR ” in order on the CONSULT-II screen.
If “ABS” is not indicated, go to GI-40, "
CONSULT-II Data Link Connector (DLC) Circuit" .
BR FLUID LEVEL LOW
[C1155] Brake fluid level drops or circuit between ABS actuator and elec-
tric unit (control unit) and brake fluid level switch is open or
shorted. BRC-47, "Brake Fluid
Level Switch System
Inspection"
ENGINE SIGNAL 1
[C1130]
Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunction-
ing.
BRC-39, "
Engine Sys-
tem Inspection"
ENGINE SIGNAL 2
[C1131]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunction-
ing.
ENGINE SIGNAL 3
[C1132] Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunction-
ing.
ENGINE SIGNAL 4
[C1133] Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunction-
ing.
ENGINE SIGNAL 6
[C1136] Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunction-
ing.
ACTUATOR RLY
[C1140] ABS actuator relay or circuit malfunction. BRC-44, "
Actuator
Motor, Motor Relay, and
Circuit Inspection"
PRESS SEN CIRCUIT
[C1142]
ABS pressure sensor circuit malfunction.
BRC-51, "Pressure Sen-
sor System Inspection"
VARIANT CODING
[C1170]V coding is not malfunctioning. BRC-40, "ABS/TCS/
VDC Control Unit
Inspection"
ABS ACTIVE BOOSTER SV NG
[C1178]Active booster solenoid is malfunctioning, or signal line of active
booster servo is open or shorted. BRC-48, "Active Booster
System Inspection"
ABS DELTA S SEN NG
[C1179]Delta stroke sensor malfunctioning, or signal line of delta stroke
sensor is open or shorted. BRC-49, "Delta Stroke
Sensor System Inspec-
tion"
ABS ACTIVE BOOSTER
RESPONSE NG
[C1181]Active booster response is malfunctioning, or signal line of active
booster response is open or shorted.
BRC-48, "Active Booster
System Inspection"
ABS BRAKE RELEASE SW NG
[C1184]Brake release switch is malfunctioning, or signal line of brake
release switch is open or shorted. BRC-48, "Active Booster
System Inspection"
ABS ACC CU INTERNAL NG
[C1185]
ICC control unit internal malfunction.
BRC-54, "ICC System
Inspection"
ABS BRAKE BOOSTER DEFECT
[C1189]Brake booster is defective or malfunctioning. BRC-48, "Active Booster
System Inspection"
Self-diagnostic item
Malfunction detecting condition Check system