2011 INFINITI QX56 light

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Page 2469 of 5598

INFINITI QX56 2011  Factory Service Manual 
P1572 ICC BRAKE SWITCHEC-445
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
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Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the

Page 2470 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-446
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P1572 ICC BRAKE SWITCH
NO >> GO TO 2.
2.CHECK ICC BRAKE SWITCH-II
1. Adjust ICC brake switch installation. Refer to  BR-21, "
Inspection and Adjustment".
2. C

Page 2479 of 5598

INFINITI QX56 2011  Factory Service Manual 
P1805 BRAKE SWITCHEC-455
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
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P1805 BRAKE SWITCH
DTC LogicINFOID:0000000006217957
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFOR

Page 2480 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-456
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P1805 BRAKE SWITCH
4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect stop lamp switch harness connector.
2. Disconnect ECM harnes

Page 2514 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-490
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
ASCD BRAKE SWITCH
ASCD BRAKE SWITCH
Component Function CheckINFOID:0000000006217989
1.CHECK ASCD BRAKE SWITCH FUNCTION
 WITH CONSULT-III
1. Turn ignition swit

Page 2515 of 5598

INFINITI QX56 2011  Factory Service Manual 
ASCD BRAKE SWITCHEC-491
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
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4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO

Page 2517 of 5598

INFINITI QX56 2011  Factory Service Manual 
ELECTRICAL LOAD SIGNALEC-493
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
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ELECTRICAL LOAD SIGNAL
DescriptionINFOID:0000000006217994
The electrical load signal (Rear window defog

Page 2527 of 5598

INFINITI QX56 2011  Factory Service Manual 
ICC BRAKE SWITCHEC-503
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
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ICC BRAKE SWITCH
Component Function CheckINFOID:0000000006218008
1.CHECK ICC BRAKE SWITCH FUNCTION
 WITH CONS