diagram INFINITI M35 2006 Factory Service Manual

REFRIGERANT PRESSURE SENSOR
EC-693
[VQ35DE]
C
D
E
F
G
H
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J
K
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MA
EC
Revision: 2006 January2006 M35/M45
Wiring DiagramNBS00586
TBWT0998E

EC-696
[VQ35DE]
REFRIGERANT PRESSURE SENSOR
Revision: 2006 January2006 M35/M45
5. CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between refrigerant pressure sensor terminal 3 and ECM terminal 67.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E11, F2
Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 70 and refrigerant pressure sensor terminal 2.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
8. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E11, F2
Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-165, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace refrigerant pressure sensor.
NG >> Repair or replace.
Removal and InstallationNBS00588
REFRIGERANT PRESSURE SENSOR
Refer to ATC-167, "Removal and Installation of Refrigerant Pressure Sensor" . Continuity should exist.
Continuity should exist.

EC-700
[VQ35DE]
ICC BRAKE SWITCH
Revision: 2006 January2006 M35/M45
Wiring DiagramNBS0058E
TBWT1000E

ICC BRAKE SWITCH
EC-703
[VQ35DE]
C
D
E
F
G
H
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J
K
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MA
EC
Revision: 2006 January2006 M35/M45
4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E102
10A fuse
Harness for open or short between ICC brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ICC brake switch terminal 2 and ECM terminal 108.
Refer Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E108, M15
Harness for open or short between ICC brake switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK ICC BRAKE SWITCH
Refer to EC-705, "
Component Inspection" .
OK or NG
OK >> GO TO 15.
NG >> Replace ICC brake switch.
8. CHECK DTC WITH ICC UNIT
Refer to ACS-39, "
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS" .
OK or NG
OK >> GO TO 9.
NG >> Repair or replace.Continuity should exist.

ICC BRAKE SWITCH
EC-705
[VQ35DE]
C
D
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F
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H
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K
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MA
EC
Revision: 2006 January2006 M35/M45
10. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E101
10A fuse
Harness for open or short between battery and stop lamp switch
Harness for open or short between battery and ICC brake hold relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 . CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between the following;
ECM terminal 101 and stop lamp switch terminal 2,
ECM terminal 101 and ICC brake hold relay terminal 5.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E108, M15
Harness for open or short between ECM and stop lamp switch
Harness for open or short between ECM and ICC brake hold relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
13. CHECK STOP LAMP SWITCH
Refer to EC-705, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> Replace stop lamp switch.
14. CHECK ICC BRAKE HOLD RELAY
Refer to EC-705, "
Component Inspection" .
OK >> GO TO 15.
NG >> Replace ICC brake hold relay.
15. CHECK INTERMITTENT INCIDENT
Refer to EC-165, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS0058G
ICC BRAKE SWITCH
1. Turn ignition switch OFF.Continuity should exist.

EC-708
[VQ35DE]
ASCD BRAKE SWITCH
Revision: 2006 January2006 M35/M45
Wiring DiagramNBS0058J
TBWT0999E

ASCD BRAKE SWITCH
EC-711
[VQ35DE]
C
D
E
F
G
H
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J
K
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MA
EC
Revision: 2006 January2006 M35/M45
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch (2) harness connector.
–Stop lamp switch (1)
3. Turn ignition switch ON.
4. Check voltage between ASCD brake switch terminal 1 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E102
10A fuse
Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 108 and ASCD brake switch terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E108, M15
Harness for open or short between ECM and ASCD brake switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2705E
Voltage: Battery voltage
PBIB0857E
Continuity should exist.

EC-712
[VQ35DE]
ASCD BRAKE SWITCH
Revision: 2006 January2006 M35/M45
7. CHECK ASCD BRAKE SWITCH
Refer to EC-713, "
Component Inspection"
OK or NG
OK >> GO TO 13.
NG >> Replace ASCD brake switch.
8. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch (1) harness connector.
–ASCD brake switch (2)
3. Check voltage between stop lamp switch terminal 1 and ground
with CONSULT -II or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E101
10A fuse
Harness for open or short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
10. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
PBIB2705E
Voltage: Battery voltage
PBIA9488J
Continuity should exist.

ASCD INDICATOR
EC-715
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
Wiring DiagramNBS0058O
TBWT1001E

EC-718
[VQ35DE]
SNOW MODE SWITCH
Revision: 2006 January2006 M35/M45
Wiring DiagramNBS0058S
TBWT1003E