2008 INFINITI QX56 battery volt

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Page 1691 of 4083

INFINITI QX56 2008  Factory Service Manual EC-392
< COMPONENT DIAGNOSIS >[VK56DE]
ASCD BRAKE SWITCH
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to

Page 1694 of 4083

INFINITI QX56 2008  Factory Service Manual COOLING FANEC-395
< COMPONENT DIAGNOSIS > [VK56DE]
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COOLING FAN
Diagnosis ProcedureINFOID:0000000001351874
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. D

Page 1695 of 4083

INFINITI QX56 2008  Factory Service Manual EC-396
< COMPONENT DIAGNOSIS >[VK56DE]
COOLING FAN
2. Supply cooling fan motor terminals with battery voltage and
check operation.
Cooling fan motor should operate.
If NG, replace cooling fan motor.
A

Page 1699 of 4083

INFINITI QX56 2008  Factory Service Manual EC-400
< COMPONENT DIAGNOSIS >[VK56DE]
FUEL INJECTOR
2. Disconnect fuel injector harness connector.
3. Turn ignition switch ON.
4. Check voltage between fuel injector terminal 1 and ground with
CONSUL

Page 1701 of 4083

INFINITI QX56 2008  Factory Service Manual EC-402
< COMPONENT DIAGNOSIS >[VK56DE]
FUEL PUMP
FUEL PUMP
DescriptionINFOID:0000000001365881
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the signals of engine speed and battery vo

Page 1702 of 4083

INFINITI QX56 2008  Factory Service Manual FUEL PUMPEC-403
< COMPONENT DIAGNOSIS > [VK56DE]
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4. Check voltage between ECM terminal 113 and ground with
CONSULT-IIl or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.

Page 1705 of 4083

INFINITI QX56 2008  Factory Service Manual EC-406
< COMPONENT DIAGNOSIS >[VK56DE]
ICC BRAKE SWITCH
ICC BRAKE SWITCH
Component DescriptionINFOID:0000000001365887
When depress on the brake pedal, ICC brake switch is turned OFF
and stop lamp swit

Page 1706 of 4083

INFINITI QX56 2008  Factory Service Manual ICC BRAKE SWITCHEC-407
< COMPONENT DIAGNOSIS > [VK56DE]
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Check voltage between ECM terminal 101 and ground under the fol-
lowing conditions.
OK or NG
OK >>
INSPECTION EN