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REFRIGERANT PRESSURE SENSOREC-585
< SERVICE INFORMATION > [VQ35DE]
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OK >> GO TO 9.
NG >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E18, F48
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-139
.
OK or NG
OK >> Replace refrigerant pressure sensor.
NG >> Repair or replace.
Removal and InstallationINFOID:0000000001326463
REFRIGERANT PRESSURE SENSOR
Refer to ATC-137, "Removal and Installation of Refrigerant Pressure Sensor".
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![INFINITI FX35 2008 Service Manual
EC-586
< SERVICE INFORMATION >[VQ35DE]
SNOW MODE SWITCH
SNOW MODE SWITCH
DescriptionINFOID:0000000001326464
The snow mode switch signal is sent to the “unifi
ed meter and A/C amp.” from the snow INFINITI FX35 2008 Service Manual
EC-586
< SERVICE INFORMATION >[VQ35DE]
SNOW MODE SWITCH
SNOW MODE SWITCH
DescriptionINFOID:0000000001326464
The snow mode switch signal is sent to the “unifi
ed meter and A/C amp.” from the snow](/manual-img/42/57017/w960_57017-1825.png)
EC-586
< SERVICE INFORMATION >[VQ35DE]
SNOW MODE SWITCH
SNOW MODE SWITCH
DescriptionINFOID:0000000001326464
The snow mode switch signal is sent to the “unifi
ed meter and A/C amp.” from the snow mode switch. The
“unified meter and A/C amp.” then sends the signal to the ECM by CAN communication line.
The snow mode is used for driving or starting the vehicle on snowy roads or slippery areas. If the snow mode
is activated, the vehicle speed will not be accelerated i mmediately than your original pedal in due to avoid the
vehicle slip. In other words, ECM controls the rapi d engine torque change by controlling the electric throttle
control actuator operating speed.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001326465
MONITOR ITEM CONDITION SPECIFICATION
SNOW MODE SW Ignition switch: ON Snow mode switch: ON ON
Snow mode switch: OFF OFF
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SNOW MODE SWITCHEC-587
< SERVICE INFORMATION > [VQ35DE]
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Wiring DiagramINFOID:0000000001326466
Diagnosis ProcedureINFOID:0000000001326467
1.CHECK SNOW MODE SWIT
ICH OVERALL FUNCTION-I
1. Turn ignition switch ON.
2. Select “SNOW MODE SW” in “DAT A MONITOR” mode with CONSULT-III.
3. Check “SNOW MODE SW” indication under the following conditions.
TBWM1415E
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![INFINITI FX35 2008 Service Manual
EC-588
< SERVICE INFORMATION >[VQ35DE]
SNOW MODE SWITCH
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK SNOW MODE SWIT
ICH OVERALL FUNCTION-II
1. Turn ignition switch ON.
2. Start engine.
3. Check the INFINITI FX35 2008 Service Manual
EC-588
< SERVICE INFORMATION >[VQ35DE]
SNOW MODE SWITCH
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK SNOW MODE SWIT
ICH OVERALL FUNCTION-II
1. Turn ignition switch ON.
2. Start engine.
3. Check the](/manual-img/42/57017/w960_57017-1827.png)
EC-588
< SERVICE INFORMATION >[VQ35DE]
SNOW MODE SWITCH
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK SNOW MODE SWIT
ICH OVERALL FUNCTION-II
1. Turn ignition switch ON.
2. Start engine.
3. Check the snow mode indicator in the snow mode switch under the following condition.
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
3.CHECK DTC WITH “UNIFIED METER AND A/C AMP.”
Refer to DI-27, "
CONSULT-III Function (METER/M&A)".
OK or NG
OK >> GO TO 4.
NG >> Go to DI-26
.
4.CHECK SNOW MODE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect snow mode switch harness connector.
3. Turn ignition switch ON.
4. Check voltage between snow mode switch terminal 1 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) M1
10A fuse
Harness for open or short between snow mode switch and fuse.
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK SNOW MODE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect “unified meter and A/C amp.” harness connector.
3. Check harness continuity between snow mode switch terminal 4 and “unified meter and A/C amp.” termi-
nal 12. Refer to Wiring Diagram.
CONDITION INDICATION
Snow mode switch: ON ON
Snow mode switch: OFF OFF
CONDITION INDICATOR
Snow mode switch: ON Illuminated
Snow mode switch: OFF Not illuminated
Voltage: Battery voltage.
PBIB2562E
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![INFINITI FX35 2008 Service Manual
SNOW MODE SWITCHEC-589
< SERVICE INFORMATION > [VQ35DE]
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4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit INFINITI FX35 2008 Service Manual
SNOW MODE SWITCHEC-589
< SERVICE INFORMATION > [VQ35DE]
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4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit](/manual-img/42/57017/w960_57017-1828.png)
SNOW MODE SWITCHEC-589
< SERVICE INFORMATION > [VQ35DE]
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4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body. Refer to EC-723, "
Ground Inspection".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace ground connections.
8.CHECK SNOW MODE INDICATOR LAMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between snow mode switch terminal 2 and ground. Refer to Wiring Diagram.
2. Also check harness for short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to power in harness or connectors.
9.CHECK SNOW MODE SWITCH
Refer to EC-1185, "
Component Inspection".
OK or NG
OK >> GO TO 10.
NG >> Replace snow mode switch.
10.CHECK INTERMITTENT INCIDENT
Refer to EC-717
.
>> INSPECTION END
Component InspectionINFOID:0000000001326468
SNOW MODE SWITCH
Continuity should exist.
PBIB2625E
Continuity should exist.
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EC-590
< SERVICE INFORMATION >[VQ35DE]
SNOW MODE SWITCH
1. Check continuity between snow mode switch terminals 1 and 4
under the following conditions.
If NG, replace snow mode switch.
If OK, go to following step.
2. Check continuity between snow mode switch terminals 2 and 4 under the following conditions.
If NG, replace snow mode switch.
CONDITION CONTINUITY
Snow mode switch: ON Should exist.
Snow mode switch: OFF Should not exist.
PBIB2563E
CONDITION CONTINUITY 1 Should exist.
2 Should not exist.
PBIB2564E
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MIL AND DATA LINK CONNECTOREC-591
< SERVICE INFORMATION > [VQ35DE]
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MIL AND DATA LINK CONNECTOR
Wiring DiagramINFOID:0000000001326469
TBWM1413E
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Page 1832 of 3924
EC-592
< SERVICE INFORMATION >[VQ35DE]
MIL AND DATA LINK CONNECTOR
TBWM1414E
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