INFINITI QX56 2011 Factory Service Manual
Manufacturer: INFINITI, Model Year: 2011, Model line: QX56, Model: INFINITI QX56 2011Pages: 5598, PDF Size: 94.53 MB
Page 1091 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS-126
< BASIC INSPECTION >[DCA]
ADDITIONAL SERVICE WHEN
REPLACING ICC SENSOR
ADDITIONAL SERVICE WHEN REPLACING ICC SENSOR
DescriptionINFOID:0000000006223523
Always perform the laser beam aiming](/img/42/57033/w960_57033-1090.png "INFINITI QX56 2011 Factory Service Manual
DAS-126
< BASIC INSPECTION >[DCA]
ADDITIONAL SERVICE WHEN
REPLACING ICC SENSOR
ADDITIONAL SERVICE WHEN REPLACING ICC SENSOR
DescriptionINFOID:0000000006223523
Always perform the laser beam aiming")
DAS-126
< BASIC INSPECTION >[DCA]
ADDITIONAL SERVICE WHEN
REPLACING ICC SENSOR
ADDITIONAL SERVICE WHEN REPLACING ICC SENSOR
DescriptionINFOID:0000000006223523
Always perform the laser beam aiming adjustment after re moving and installing or replacing the ICC sensor.
CAUTION:
The system does not operate normally unless the laser beam aiming adjustment is performed.
Always perform it.
Perform the DCA system action test check that the DCA system operates normally.
Work ProcedureINFOID:0000000006223524
1.LASER BEAM AIMING ADJUSTMENT
Adjust the laser beam aiming. Refer to CCS-72, "
Description".
>> GO TO 2.
2.DCA SYSTEM ACTION TEST
1. Perform the DCA system action test. Refer to DAS-128, "
Description".
2. Check that the DCA sy stem operates normally.
>> INSPECTION END
Revision: 2010 May2011 QX56
Page 1092 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS
ADDITIONAL SERVICE WHEN REPLACING ACCELERATOR PEDAL ASSEM-
BLY
DAS-127
< BASIC INSPECTION > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
ADDITIONAL SERVICE WHEN RE PLACING ACCELERATOR PEDAL AS-
SEMBLY
Des](/img/42/57033/w960_57033-1091.png "INFINITI QX56 2011 Factory Service Manual
DAS
ADDITIONAL SERVICE WHEN REPLACING ACCELERATOR PEDAL ASSEM-
BLY
DAS-127
< BASIC INSPECTION > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
ADDITIONAL SERVICE WHEN RE PLACING ACCELERATOR PEDAL AS-
SEMBLY
Des")
DAS
ADDITIONAL SERVICE WHEN REPLACING ACCELERATOR PEDAL ASSEM-
BLY
DAS-127
< BASIC INSPECTION > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
ADDITIONAL SERVICE WHEN RE PLACING ACCELERATOR PEDAL AS-
SEMBLY
DescriptionINFOID:0000000006223525
Always perform accelerator pedal released position learning when replacing the accelerator pedal assembly or disconnecting the accelerator pedal position sensor connector.
Perform the DCA system action test check that the DCA system operates normally.
Work ProcedureINFOID:0000000006223526
1.ACCELERATOR PEDAL RELEASED POSITION LEARNING
Perform accelerator pedal released position learning. Refer to EC-146, "
Description".
>> GO TO 2.
2.DCA SYSTEM ACTION TEST
1. Perform the DCA system action test. Refer to DAS-128, "
Description".
2. Check that the DCA system operates normally.
>> INSPECTION END
Revision: 2010 May2011 QX56
Page 1093 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS-128
< BASIC INSPECTION >[DCA]
ACTION TEST
ACTION TEST
DescriptionINFOID:0000000006223527
Always perform the DCA system action te
st to check that the system operates normally after replacing the](/img/42/57033/w960_57033-1092.png "INFINITI QX56 2011 Factory Service Manual
DAS-128
< BASIC INSPECTION >[DCA]
ACTION TEST
ACTION TEST
DescriptionINFOID:0000000006223527
Always perform the DCA system action te
st to check that the system operates normally after replacing the")
DAS-128
< BASIC INSPECTION >[DCA]
ACTION TEST
ACTION TEST
DescriptionINFOID:0000000006223527
Always perform the DCA system action te
st to check that the system operates normally after replacing the ICC
sensor, replacing the accelerator pedal assemb ly, or repairing any DCA system malfunction.
CAUTION:
Perform the DCA system action test after checking that the ICC system operates normally because the
DCA system shares components with the ICC system.
Work ProcedureINFOID:0000000006223528
NOTE:
When the ICC system is set, the information display changes to the ICC system display.
1.ICC SYSTEM ACTION TEST
Perform the ICC system action test. Refer to CCS-77, "
Description".
>> GO TO 2.
2.CHECK DCA SYST EM SETTING
1. Start the engine.
2. After starting the engine wait for 30 seconds or more.
3. Check that the DCA syst em setting can be enabled/disabled on the navigation screen.
4. Turn OFF the ignition switch and wait for 5 seconds or more.
5. Check that the previous setting is saved when the engine starts again.
>> GO TO 3.
3.CHECK DYNAMIC DRIVER ASSISTANCE SWITCH
1. Start the engine.
2. After starting the engine wait for 30 seconds or more.
3. Enable the setting of the DCA system on the navigation screen.
4. Press the dynamic driver assistance switch (1).
5. Check that the DCA system switch indicator (2) on the informa- tion display illuminates.
6. Check that the DCA system switch indicator turns OFF when the system is turned OFF by pressing the dynamic driver assistance
switch.
7. Check that the DCA system switch indicator turns OFF when the engine starts again.
NOTE:
The DCA system switch indicato r does not illuminate even when the
dynamic driver assistance switch is turned ON within approximately
5 seconds after starting the engine.
If the accelerator pedal assembly is not replaced>>INSPECTION END
If the accelerator pedal assembly is replaced>>GO TO 4.
4.CHECK DCA SYSTEM OPERATION
Check that the accelerator pedal actuator operates by the “Active Test” items “ACCELERATOR PEDAL
ACTUATOR TEST1” and “ACCELERATOR PEDAL ACTU ATOR TEST2” of “ACCELE PEDAL ACT” with
CONSULT-III.
>> INSPECTION END
JSOIA0275ZZ
Revision: 2010 May2011 QX56
Page 1094 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS
C1A00 CONTROL UNITDAS-129
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
DTC/CIRCUIT DIAGNOSIS
C1A00 CONTROL UNIT
DTC LogicINFOID:0000000006223529
DTC DETECTION LOGIC
DTC CONFIRMAT](/img/42/57033/w960_57033-1093.png "INFINITI QX56 2011 Factory Service Manual
DAS
C1A00 CONTROL UNITDAS-129
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
DTC/CIRCUIT DIAGNOSIS
C1A00 CONTROL UNIT
DTC LogicINFOID:0000000006223529
DTC DETECTION LOGIC
DTC CONFIRMAT")
DAS
C1A00 CONTROL UNITDAS-129
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
DTC/CIRCUIT DIAGNOSIS
C1A00 CONTROL UNIT
DTC LogicINFOID:0000000006223529
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Perform “All DTC Readi ng” with CONSULT-III.
3. Check if the “C1A00” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A00” detected as the current malfunction?
YES >> Refer to DAS-129, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006223530
1.CHECK SELF-DIAGNOSIS RESULTS
Check if any DTC other than “C1A00” is detect ed in “Self Diagnostic Result” of “ICC/ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-38, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis- play) Trouble diagnosis name DTC detecting condition Possible causes
C1A00 (0) CONTROL UNIT ADAS control unit inte
rnal malfunction ADAS control unit
Revision: 2010 May2011 QX56
Page 1095 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS-130
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A01 POWER SUPPLY CIRCUIT 1,
C1A02 POWER SUPPLY CIRCUIT 2
C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
DTC LogicINFOID:0000000006223531
DTC DET](/img/42/57033/w960_57033-1094.png "INFINITI QX56 2011 Factory Service Manual
DAS-130
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A01 POWER SUPPLY CIRCUIT 1,
C1A02 POWER SUPPLY CIRCUIT 2
C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
DTC LogicINFOID:0000000006223531
DTC DET")
DAS-130
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A01 POWER SUPPLY CIRCUIT 1,
C1A02 POWER SUPPLY CIRCUIT 2
C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
DTC LogicINFOID:0000000006223531
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “C1A01” or “C1A02” is detected as t he current malfunction in “Self Diagnostic Result” of “ICC/
ADAS”.
Is
“C1A01” or “C1A02” detected as the current malfunction?
YES >> Refer to DAS-130, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223532
1.CHECK ADAS CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit of ADAS control unit. Refer to DAS-195, "
ADAS CONTROL UNIT :
Diagnosis Procedure".
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> Repair or replace the malfunctioning parts.
DTC
(On board dis-
play) Trouble diagnosis
name DTC detecting condition Possible causes
C1A01 (1) POWER SUPPLY
CIR The battery voltage sent to ADAS control unit re-
mains less than 7.9 V for 5 seconds
Connector, harness, fuse
ADAS control unit
C1A02
(2) POWER SUPPLY
CIR 2 The battery voltage sent to ADAS control unit re-
mains more than 19.3 V for 5 seconds
Revision: 2010 May2011 QX56
Page 1096 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS
C1A03 VEHICLE SPEED SENSORDAS-131
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A03 VEHICLE SPEED SENSOR
DTC LogicINFOID:0000000006228063
DTC DETECTION LOGIC
NOTE:
If DTC “C1A](/img/42/57033/w960_57033-1095.png "INFINITI QX56 2011 Factory Service Manual
DAS
C1A03 VEHICLE SPEED SENSORDAS-131
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A03 VEHICLE SPEED SENSOR
DTC LogicINFOID:0000000006228063
DTC DETECTION LOGIC
NOTE:
If DTC “C1A")
DAS
C1A03 VEHICLE SPEED SENSORDAS-131
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A03 VEHICLE SPEED SENSOR
DTC LogicINFOID:0000000006228063
DTC DETECTION LOGIC
NOTE:
If DTC “C1A03” is detected along with DTC “U1000” or “C1A04”, first diagnose the DTC “U1000” or “C1A04”.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
Refer to DAS-133, "
DTC Logic" for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Drive the vehicle at 30 km/h (19 MPH) or more. CAUTION:
Always drive safely.
4. Stop the vehicle.
5. Perform “All DTC Readi ng” with CONSULT-III.
6. Check if the “C1A03” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A03” detected as the current malfunction?
YES >> Refer to DAS-131, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228064
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A04” or “U1000” is detected other than “C1A03” in “Self Diagnostic Result” of “ICC/ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-100, "
DTC Index".
NO >> GO TO 2.
2.CHECK DATA MONITOR
1. Start the engine.
2. Drive the vehicle.
3. Check that the value of “VHCL SPD AT” is almost the same as the value of “VHCL SPEED SE” in “DATA
MONITOR” of “ICC/ADAS”.
CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> GO TO 3.
3.CHECK TCM SELF-DIAGNOSIS RESULTS
1. Perform “All DTC Reading”.
2. Check if any DTC is detected in “Sel f Diagnostic Result” of “TRANSMISSION”.
DTC
(On board
display) Trouble diagnosis
name DTC detecting condition Possible causes
C1A03 (3) VHCL SPEED SE
CIRC If the vehicle speed signal (wheel speed) from
ABS actuator and electric unit (control unit) and
the A/T vehicle speed sensor signal (output
shaft revolution signal) from TCM, received by
the ADAS control unit via CAN communication,
are inconsistent Wheel speed sensor
ABS actuator and electric unit (control
unit)
Vehicle speed sensor A/T (output speed sensor)
TCM
ADAS control unit
Revision: 2010 May2011 QX56
Page 1097 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS-132
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A03 VEHICLE SPEED SENSOR
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair
or replace the malfunctioning parts. Refer to
TM-78, "](/img/42/57033/w960_57033-1096.png "INFINITI QX56 2011 Factory Service Manual
DAS-132
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A03 VEHICLE SPEED SENSOR
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair
or replace the malfunctioning parts. Refer to
TM-78, \"")
DAS-132
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A03 VEHICLE SPEED SENSOR
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair
or replace the malfunctioning parts. Refer to
TM-78, "
DTC Index".
NO >> GO TO 4.
4.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
Revision: 2010 May2011 QX56
Page 1098 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS
C1A04 ABS/TCS/VDC SYSTEM
DAS-133
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A04 ABS/TCS/VDC SYSTEM
DTC LogicINFOID:0000000006228065
DTC DETECTION LOGIC
NOTE:
If DTC “C1A04](/img/42/57033/w960_57033-1097.png "INFINITI QX56 2011 Factory Service Manual
DAS
C1A04 ABS/TCS/VDC SYSTEM
DAS-133
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A04 ABS/TCS/VDC SYSTEM
DTC LogicINFOID:0000000006228065
DTC DETECTION LOGIC
NOTE:
If DTC “C1A04")
DAS
C1A04 ABS/TCS/VDC SYSTEM
DAS-133
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A04 ABS/TCS/VDC SYSTEM
DTC LogicINFOID:0000000006228065
DTC DETECTION LOGIC
NOTE:
If DTC “C1A04” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
Diagnosis ProcedureINFOID:0000000006228066
1.CHECK SELF-DIAGNOSIS RESULTS
1. Perform “All DTC Readi ng” with CONSULT-III.
2. Check if the “U1000” is detect ed other than “C1A04” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (C ONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis
name DTC detecting condition Possible causes
C1A04 (4) ABS/TCS/VDC CIRC
If a malfunction occurs in the VDC/TCS/ABS
system ABS actuator and electric unit (control
unit)
Revision: 2010 May2011 QX56
Page 1099 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS-134
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A05 BRAKE SW/STOP LAMP SW
C1A05 BRAKE SW/STOP LAMP SW
DTC LogicINFOID:0000000006228067
DTC DETECTION LOGIC
NOTE:
If DTC “C1A05” is detected along with DTC](/img/42/57033/w960_57033-1098.png "INFINITI QX56 2011 Factory Service Manual
DAS-134
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A05 BRAKE SW/STOP LAMP SW
C1A05 BRAKE SW/STOP LAMP SW
DTC LogicINFOID:0000000006228067
DTC DETECTION LOGIC
NOTE:
If DTC “C1A05” is detected along with DTC")
DAS-134
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A05 BRAKE SW/STOP LAMP SW
C1A05 BRAKE SW/STOP LAMP SW
DTC LogicINFOID:0000000006228067
DTC DETECTION LOGIC
NOTE:
If DTC “C1A05” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
Diagnosis ProcedureINFOID:0000000006228068
1.CHECK SELF-DIAGNOSIS RESULTS
1. Perform “All DTC Reading” with CONSULT-III.
2. Check if the “U1000” is detected other than “C1A 05” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH
Check that “STOP LAMP SW” and “BRAKE SW” operate normally in “DATA MONITOR” of “ICC/ADAS”.
Is the inspection result normal?
YES >> GO TO 3.
NO-1 >> When “BRAKE SW” operation is malfunctioning: GO TO 4.
NO-2 >> When “STOP LAMP SW” operation is malfunctioning: GO TO 9.
3.CHECK STOP LAMP SWITCH
Check that “STOP LAMP SW” operate norma lly in “DATA MONITOR” of “ABS”.
Is the inspection result normal?
YES >> GO TO 14.
NO >> GO TO 9.
4.CHECK ICC BRAKE SWITCH INSTALLATION
1. Turn ignition switch OFF.
2. Check ICC brake switch for correct installation. Refer to BR-7, "
Inspection and Adjustment".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Adjust ICC brake switch installation. Refer to BR-7, "
Inspection and Adjustment".
5.ICC BRAKE SWITCH INSPECTION
1. Disconnect ICC brake switch connector.
2. Check ICC brake switch. Refer to DAS-137, "
Component Inspection (ICC Brake Switch)".
Is the inspection result normal?
DTC
(On board dis-
play) Trouble diagnosis
name DTC detecting condition Possible causes
C1A05 (5) BRAKE SW/STOP L
SW A mismatch between a stop lamp switch signal
and a ICC brake switch signal received from
ECM and a stop lamp signal received from the
ABS actuator and electric unit (control unit) con-
tinues for 10 seconds or more with vehicle
speeds at approximately 40 km/h or more Stop lamp switch circuit
ICC brake switch circuit
Stop lamp switch
ICC brake switch
Incorrect stop lamp switch installa-
tion
Incorrect ICC brake switch installa- tion
ECM
ABS actuator and electric unit (con-
trol unit)
Revision: 2010 May2011 QX56
Page 1100 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS
C1A05 BRAKE SW/STOP LAMP SWDAS-135
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
YES >> GO TO 6.
NO >> Replace ICC brake switch.
6.CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
1. T](/img/42/57033/w960_57033-1099.png "INFINITI QX56 2011 Factory Service Manual
DAS
C1A05 BRAKE SW/STOP LAMP SWDAS-135
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
YES >> GO TO 6.
NO >> Replace ICC brake switch.
6.CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
1. T")
DAS
C1A05 BRAKE SW/STOP LAMP SWDAS-135
< DTC/CIRCUIT DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
YES >> GO TO 6.
NO >> Replace ICC brake switch.
6.CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn the ignition switch ON.
2. Check voltage between ICC brake switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair the harnesses or connectors.
7.CHECK HARNESS BETWEEN I CC BRAKE SWITCH AND ECM
1. Turn ignition switch OFF
2. Disconnect ECM connector.
3. Check for continuity between ICC brake sw itch harness connector and ECM harness connector.
4. Check for continuity between ICC br ake switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair the harnesses or connectors.
8.PERFORM SELF-DIAGNOSIS OF ECM
1. Connect all connectors again if the connectors are disconnected.
2. Turn ignition switch ON.
3. Perform “All DTC Reading”.
4. Check if any DTC is detected in “Self Diagnostic Result” of “ENGINE”. Refer to EC-98, "
DTC Index".
Is any DTC detected?
YES >> Repair or replace the malfunctioning part s identified by the self-diagnosis result.
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
9.CHECK STOP LAMP SWITCH INSTALLATION
1. Turn ignition switch OFF.
2. Check stop lamp switch for correct installation. Refer to BR-7, "
Inspection and Adjustment".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Adjust stop lamp switch installation. Refer to BR-7, "
Inspection and Adjustment".
10.STOP LAMP SWITCH INSPECTION
1. Disconnect stop lamp switch connector.
2. Check stop lamp switch. Refer to DAS-137, "
Component Inspection (Stop Lamp Switch)".
Is the inspection result normal?
YES >> GO TO 11.
Te r m i n a l s
Vo l ta g e
(Approx.)
(+) (-)
ICC brake switch Ground
Connector Terminal
E68 1 Battery voltage
ICC brake switch ECM Continuity
Connector Terminal Connector Terminal
E68 2 E80 147 Existed
ICC brake switch GroundContinuity
Connector Terminal
E68 2 Not existed
Revision: 2010 May2011 QX56