2007 INFINITI M35 1300

DIAGNOSIS SYSTEM
AV-103
[WITHOUT MOBILE ENTERTAINMENT SYSTEM]
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Revision: 2007 April2007 M35/M45
5. Select diagnosis item on “SELECT DIAG MODE” screen.
SELF-DIAG RESULTS
The self-diagnosis is started and self-diagnostic results are dis-
played by touching “START” after selecting “SELF-DIAG RESULTS”.

In CONSULT-II self-diagnosis, self-diagnostic results and error
history are displayed collectively.

The current malfunction indicates “CRNT”. The past malfunction
indicates “PAST”.

If DTC [U1000], [U1300] are detected, “0” is displayed at “TIME”.
If it is normal the next time ignition switch is ON of next time, add
1 to the “TIME”.
Display Item of SELF-DIAG RESULTS
Self-diagnostic results may be displayed simultaneously according to the cause. If some error items are dis-
played simultaneously, the detection of the cause can be performed by the combination of display items
BCIA0031E
SKIB3674E
Error item Description Possible cause/Action to take
CAN COMM CIRCUIT [U1000]CAN communication malfunction is
detectedPrint out the self-diagnostic results and go to
LAN-42, "
Precautions When Using CONSULT-
II" .
CONTROL UNIT (CAN) [U1010]CAN initial diagnosis malfunction is
detectedReplace AV (NAVI) control unit
Refer to AV-131, "
AV (NAVI) Control Unit" .
CONTROL UNIT (AV) [U1310]AV communication circuit initial diagno-
sis malfunction is detectedReplace AV (NAVI) control unit
Refer to AV-131, "
AV (NAVI) Control Unit" .

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

DVD DECK CONN [U1248]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction is detected on communi-
cation circuit between AV (NAVI) con-
trol unit and DVD player

Communication circuit between AV (NAVI)
control unit and DVD player

AV ( N AV I ) c o n t r o l u n i t

DVD player

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]BOSE surround 5.1ch system

Malfunction is detected on communi-
cation circuit between DVD player
and multifunction switch

Communication circuit between DVD player
and multifunction switch

DVD player

Multifunction switch
BOSE 2ch system

Malfunction is detected on communi-
cation circuit between AV (NAVI)
control unit and multifunction switch

Communication circuit between AV (NAVI)
control unit and multifunction switch

AV ( N AV I ) c o n t r o l u n i t

Multifunction switch

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction is detected on communi-
cation circuit between multifunction
switch and camera control unit

Communication circuit between multifunction
switch and camera control unit

Multifunction switch

Camera control unit

AV-104
[WITHOUT MOBILE ENTERTAINMENT SYSTEM]
DIAGNOSIS SYSTEM
Revision: 2007 April2007 M35/M45

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]Base system

Audio unit power supply and ground
circuit malfunction is detected

Malfunction is detected on communi-
cation circuit between multifunction
switch and audio unit

Malfunction is detected on communi-
cation signal between audio unit and
AV (NAVI) control unit

Audio unit power supply and ground circuit

Communication circuit between multifunction
switch and audio unit

Multifunction switch

Audio unit

AV (NAVI) control unit
BOSE system

Malfunction is detected on communi-
cation circuit between camera con-
trol unit and BOSE amp

Communication circuit between camera con-
trol unit and BOSE amp

Camera control unit

BOSE amp

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]

Audio unit power supply and ground
circuit malfunction is detected

Malfunction is detected on communi-
cation circuit between BOSE amp
and audio unit

Malfunction is detected on communi-
cation signal between audio unit and
AV (NAVI) control unit

Audio unit power supply and ground circuit

Communication circuit between BOSE amp
and audio unit

Audio unit

AV (NAVI) control unit

BOSE amp

AV COMM CIRCUIT [U1300]

REAR CAMERA CONN [U1252]

Camera control unit power supply
and ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between camera con-
trol unit and AV (NAVI) control unit

Camera control unit power supply and ground
circuit

Camera control unit

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

Multifunction switch power supply
and ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between multifunction
switch and AV (NAVI) control unit

Multifunction switch power supply and ground
circuit

Multifunction switch

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

DVD DECK CONN [U1248]

DVD player power supply and
ground circuit malfunction detected

Malfunction is detected on communi-
cation signal between DVD player
and AV (NAVI) control unit

DVD player power supply and ground circuit

DVD player

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

AMP CONN [U124E]

BOSE amp power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between BOSE amp
and AV (NAVI) control unit

BOSE amp power supply and ground circuit

BOSE amp

AV (NAVI) control unit
FRONT DISP CONN [U1243]

Front display unit power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation circuit between front display
unit and AV (NAVI) control unit

Malfunction is detected on communi-
cation signal between front display
unit and AV (NAVI) control unit

Front display unit power supply and ground

Communication circuit between front display
unit and AV (NAVI) control unit

Front display unit

AV (NAVI) control unit Error item Description Possible cause/Action to take

DIAGNOSIS SYSTEM
AV-243
[WITH MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2007 April2007 M35/M45
5. Select diagnosis item on “SELECT DIAG MODE” screen.
SELF-DIAG RESULTS
The self-diagnosis is started and self-diagnostic results are dis-
played by touching “START” after selecting “SELF-DIAG RESULTS”.

In CONSULT-II self-diagnosis, self-diagnostic results and error
history are displayed collectively.

The current malfunction indicates “CRNT”. The past malfunction
indicates “PAST”.

If DTC [U1000], [U1300] are detected, “0” is displayed at TIME.
If it is normal the next time ignition switch is ON of next time, add
1 to the TIME.
Display Item of Self-Diagnostic Results
Self-diagnostic results may be displayed simultaneously according to the cause. If some error items are dis-
played simultaneously, the detection of the cause can be performed by the combination of display items
BCIA0031E
SKIB3674E
Error item Description Possible cause/Action to take
CAN_COMM_CIRCUIT [U1000]CAN communication malfunction is
detectedPrint out the self-diagnostic results and go
to LAN-42, "
Precautions When Using
CONSULT-II" .
CONTROL UNIT (CAN) [U1010]CAN initial diagnosis malfunction is
detectedReplace AV (NAVI) control unit
Refer to AV-282, "
AV (NAVI) Control Unit"
CONTROL UNIT (AV) [U1310]AV communication circuit initial diagno-
sis malfunction is detectedReplace AV (NAVI) control unit
Refer to AV-282, "AV (NAVI) Control Unit"

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

VIDEO DIST CONN [U1246]

DVD DECK CONN [U1248]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction is detected on communi-
cation circuit between AV (NAVI) con-
trol unit and video distributor

Communication circuit between AV
(NAVI) control unit and video distributor

AV ( N AV I ) c o n t r o l u n i t

Video distributor

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

DVD DECK CONN [U1248]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction is detected on communi-
cation circuit between video distributor
and DVD player

Communication circuit between video
distributor and DVD player

Video distributor

DVD player

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction is detected on communi-
cation circuit between DVD player and
multifunction switch

Communication circuit between DVD
player and multifunction switch

DVD player

Multifunction switch

AV-244
[WITH MOBILE ENTERTAINMENT SYSTEM]
DIAGNOSIS SYSTEM
Revision: 2007 April2007 M35/M45

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction is detected on communi-
cation circuit between multifunction
switch and camera control unit

Communication circuit between multi-
function switch and camera control unit

Multifunction switch

Camera control unit

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

Malfunction is detected on communi-
cation circuit between camera con-
trol unit and BOSE amp
Communication circuit between camera
control unit and BOSE amp

Camera control unit

BOSE amp

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]With rear control switch

Audio unit power supply and ground
circuit malfunction is detected

Malfunction is detected on communi-
cation circuit between BOSE amp
and rear control switch

Malfunction is detected on communi-
cation circuit between rear control
switch and audio unit

Malfunction is detected on communi-
cation signal between audio unit and
AV (NAVI) control unit

Communication circuit between BOSE
amp and rear control switch

Communication circuit between rear
control switch and audio unit

BOSE amp

Rear control switch

Audio unit

AV (NAVI) control unit
Without rear control switch

Audio unit power supply and ground
circuit malfunction is detected

Malfunction is detected on communi-
cation circuit between BOSE amp
and audio unit

Malfunction is detected on communi-
cation signal between audio unit and
AV (NAVI) control unit

Audio unit power supply and ground cir-
cuit

Communication circuit between BOSE
amp and audio unit

Audio unit

AV (NAVI) control unit

BOSE amp

AV COMM CIRCUIT [U1300]

VIDEO DIST CONN [U1246]

Video distributor power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between video distribu-
tor and AV (NAVI) control unit

Video distributor power supply and
ground circuit

Video distributor

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

REAR CAMERA CONN [U1252]

Camera control unit power supply
and ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between camera con-
trol unit and AV (NAVI) control unit

Camera control unit power supply and
ground circuit

Camera control unit

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

Multifunction switch power supply
and ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between multifunction
switch and AV (NAVI) control unit

Multifunction switch power supply and
ground circuit

Multifunction switch

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

DVD DECK CONN [U1248]

DVD player power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between DVD player
and AV (NAVI) control unit

DVD player power supply and ground
circuit

DVD player

AV (NAVI) control unit Error item Description Possible cause/Action to take

DIAGNOSIS SYSTEM
AV-245
[WITH MOBILE ENTERTAINMENT SYSTEM]
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Revision: 2007 April2007 M35/M45

AV COMM CIRCUIT [U1300]

AMP CONN [U124E]

BOSE amp power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between BOSE amp
and AV (NAVI) control unit

BOSE amp power supply and ground
circuit

BOSE amp

AV ( N AV I ) c o n t r o l u n i t
FRONT DISP CONN [U1243]

Front display unit power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation circuit between front display
unit and AV (NAVI) control unit

Malfunction is detected on communi-
cation signal between front display
unit and AV (NAVI) control unit

Front display unit power supply and
ground circuit

Communication circuit between front
display unit and AV (NAVI) control unit

Front display unit

AV ( N AV I ) c o n t r o l u n i t
REAR DISP CONN [U1247]

Rear display unit power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation circuit between rear display
unit and video distributor

Malfunction is detected on communi-
cation signal between rear display
unit and video distributor

Rear display unit power supply and
ground circuit

Rear display unit

Video distributor

Communication circuit between rear
display unit and video distributor
GPS ANTENNA CONN [U1244]GPS antenna connection malfunction
is detected

GPS antenna feeder

GPS antenna

NAVI control unit
CAMERA CONT CONN [U1250]Camera and connection recognition
signal circuit malfunction is detected

Camera-connection recognition signal
circuit

Camera control unit

AV ( N AV I ) c o n t r o l u n i t
Count Unit FLASH-ROM [U1200]AV (NAVI) control unit malfunction is
detectedReplace AV (NAVI) control unit
Refer to AV-282, "
AV (NAVI) Control Unit"
Gyro NO CONN [U1201]NAVI control unit malfunction is
detectedReplace NAVI control unit
Refer to AV-282, "AV (NAVI) Control Unit"
GPS COMM [U1204]
GPS malfunction is detectedIf the symptoms such as the GPS receipt
malfunction occur, intermittent malfunction
caused by strong radio interference may
be detected.
If the malfunction always occurs, replace
NAVI control unit. GPS ROM [U1205]
GPS RAM [U1206]
GPS RTC [U1207]Error item Description Possible cause/Action to take

EC-13
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ECA
Revision: 2007 April2007 M35/M45 (FPCM) ...................................................................1225
Description ..........................................................1225
CONSULT-II Reference Value in Data Monitor Mode
1225
On Board Diagnosis Logic ..................................1225
DTC Confirmation Procedure ..............................1226
Wiring Diagram ...................................................1227
Diagnostic Procedure ..........................................1228
Component Inspection ........................................1232
DTC P1225 TP SENSOR .......................................1233
Component Description .......................................1233
On Board Diagnosis Logic ..................................1233
DTC Confirmation Procedure ..............................1233
Diagnostic Procedure ..........................................1234
Removal and Installation .....................................1234
DTC P1226 TP SENSOR .......................................1235
Component Description .......................................1235
On Board Diagnosis Logic ..................................1235
DTC Confirmation Procedure ..............................1235
Diagnostic Procedure ..........................................1236
Removal and Installation .....................................1236
DTC P1550 BATTERY CURRENT SENSOR ........1237
Component Description .......................................1237
CONSULT-II Reference Value in Data Monitor Mode
1237
On Board Diagnosis Logic ..................................1237
DTC Confirmation Procedure ..............................1238
Wiring Diagram ...................................................1239
Diagnostic Procedure ..........................................1240
Component Inspection ........................................1242
DTC P1551, P1552 BATTERY CURRENT SENSOR 1244
Component Description .......................................1244
CONSULT-II Reference Value in Data Monitor Mode
1244
On Board Diagnosis Logic ..................................1244
DTC Confirmation Procedure ..............................1245
Wiring Diagram ...................................................1246
Diagnostic Procedure ..........................................1247
Component Inspection ........................................1249
DTC P1553 BATTERY CURRENT SENSOR ........1251
Component Description .......................................1251
CONSULT-II Reference Value in Data Monitor Mode
1251
On Board Diagnosis Logic ..................................1251
DTC Confirmation Procedure ..............................1252
Wiring Diagram ...................................................1253
Diagnostic Procedure ..........................................1254
Component Inspection ........................................1256
DTC P1554 BATTERY CURRENT SENSOR ........1258
Component Description .......................................1258
CONSULT-II Reference Value in Data Monitor Mode
1258
On Board Diagnosis Logic ..................................1258
Overall Function Check .......................................1259
Wiring Diagram ...................................................1260
Diagnostic Procedure ..........................................1261
Component Inspection ........................................1263
DTC P1564 ICC STEERING SWITCH ...................1265
Component Description .......................................1265CONSULT-II Reference Value in Data Monitor Mode
1265
On Board Diagnosis Logic ...................................1265
DTC Confirmation Procedure ..............................1266
Wiring Diagram ....................................................1267
Diagnostic Procedure ..........................................1268
Component Inspection .........................................1271
DTC P1564 ASCD STEERING SWITCH ...............1272
Component Description .......................................1272
CONSULT-II Reference Value in Data Monitor Mode
1272
On Board Diagnosis Logic ...................................1272
DTC Confirmation Procedure ..............................1273
Wiring Diagram ....................................................1274
Diagnostic Procedure ..........................................1275
Component Inspection .........................................1278
DTC P1568 ICC FUNCTION ..................................1279
On Board Diagnosis Logic ...................................1279
DTC Confirmation Procedure ..............................1279
Diagnostic Procedure ..........................................1279
DTC P1572 ICC BRAKE SWITCH .........................1280
Component Description .......................................1280
CONSULT-II Reference Value in Data Monitor Mode
1280
On Board Diagnosis Logic ...................................1280
DTC Confirmation Procedure ..............................1281
Wiring Diagram ....................................................1282
Diagnostic Procedure ..........................................1283
Component Inspection .........................................1288
DTC P1572 ASCD BRAKE SWITCH .....................1289
Component Description .......................................1289
CONSULT-II Reference Value in Data Monitor Mode
1289
On Board Diagnosis Logic ...................................1289
DTC Confirmation Procedure ..............................1290
Wiring Diagram ....................................................1291
Diagnostic Procedure ..........................................1292
Component Inspection .........................................1296
DTC P1574 ICC VEHICLE SPEED SENSOR ........1297
Component Description .......................................1297
On Board Diagnosis Logic ...................................1297
DTC Confirmation Procedure ..............................1297
Diagnostic Procedure ..........................................1298
DTC P1574 ASCD VEHICLE SPEED SENSOR ....1299
Component Description .......................................1299
On Board Diagnosis Logic ...................................1299
DTC Confirmation Procedure ..............................1299
Diagnostic Procedure ..........................................1300
DTC P1715 INPUT SPEED SENSOR (TURBINE
REVOLUTION SENSOR) .......................................1301
Description ...........................................................1301
CONSULT-II Reference Value in Data Monitor Mode
1301
On Board Diagnosis Logic ...................................1301
Diagnostic Procedure ..........................................1301
DTC P1800 VIAS CONTROL SOLENOID VALVE 1302
Component Description .......................................1302
CONSULT-II Reference Value in Data Monitor Mode
1302

DTC P1574 ASCD VEHICLE SPEED SENSOR
EC-1299
[VK45DE]
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Revision: 2007 April2007 M35/M45
DTC P1574 ASCD VEHICLE SPEED SENSORPFP:31036
Component DescriptionNBS005N6
The ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from “unified
meter and A/C amp.”, and the other is from TCM (Transmission control module). The ECM uses these signals
for ASCD control. Refer to EC-738, "
AUTOMATIC SPEED CONTROL DEVICE (ASCD)" for ASCD functions.
On Board Diagnosis LogicNBS005N7
This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis.
NOTE:

If DTC P1574 is displayed with DTC U1000, U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-865, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .

If DTC P1574 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to EC-868, "
DTC U1010 CAN COMMUNICATION" .

If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500.
Refer to EC-1175, "
DTC P0500 VSS"

If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to EC-1190, "
DTC P0605 ECM"
DTC Confirmation ProcedureNBS005N8
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Step 3 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test
is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Start engine (VDC switch OFF).
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Drive the vehicle at more than 40 km/h (25 MPH).
4. If DTC is detected, go to EC-1300, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1574
1574ASCD vehicle speed
sensorECM detects a difference between two vehicle
speed signals is out of the specified range.

Harness or connectors
(The CAN communication line is open or
shorted.)

Unified meter and A/C amp.

ABS actuator and electric unit (control unit)

Wheel sensor

TCM

ECM
SEF058Y

EC-1300
[VK45DE]
DTC P1574 ASCD VEHICLE SPEED SENSOR
Revision: 2007 April2007 M35/M45
Diagnostic ProcedureNBS005N9
1. CHECK DTC WITH TCM
Check DTC with TCM. Refer to AT- 4 0 , "
OBD-II Diagnostic Trouble Code (DTC)" .
OK or NG
OK >> GO TO 2.
NG >> Perform trouble shooting relevant to DTC indicated.
2. CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Refer to BRC-10, "
TROUBLE DIAGNOSIS" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace.
3. CHECK DTC WITH “UNIFIED METER AND A/C AMP.”
Refer to DI-28, "
UNIFIED METER AND A/C AMP" .
>>INSPECTION END