2009 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2009  Factory Service Manual 
B2126 DETENT SWADP-43
< COMPONENT DIAGNOSIS >
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1. Turn ignition switch OFF.
2. Disconnect A/T shift selector  and driver seat control unit.
3. Check continuity between

Page 58 of 4171

INFINITI QX56 2009  Factory Service Manual 
ADP-44
< COMPONENT DIAGNOSIS >
B2128 UART COMMUNICATION LINE
B2128 UART COMMUNICATION LINE
DescriptionINFOID:0000000003775544
Driver seat control unit performs UART communication with the automatic d

Page 59 of 4171

INFINITI QX56 2009  Factory Service Manual 
B2128 UART COMMUNICATION LINEADP-45
< COMPONENT DIAGNOSIS >
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Is the inspection result normal?
YES >> Check intermittent incident. Refer to  GI-38, "Intermittent Incide

Page 60 of 4171

INFINITI QX56 2009  Factory Service Manual 
ADP-46
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis ProcedureINFOID:0000000004055989
1. CHECK FUSES AND FUSIBLE LINK
Check that the foll

Page 61 of 4171

INFINITI QX56 2009  Factory Service Manual 
POWER SUPPLY AND GROUND CIRCUITADP-47
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DRIVER SEAT CONTROL UNIT : Diagnosis ProcedureINFOID:0000000003775549
NOTE:
Do not disconnect the batter

Page 62 of 4171

INFINITI QX56 2009  Factory Service Manual 
ADP-48
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit.
3. Check voltage betwe

Page 63 of 4171

INFINITI QX56 2009  Factory Service Manual 
SLIDING SWITCHADP-49
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SLIDING SWITCH
DescriptionINFOID:0000000003775553
Sliding switch is equipped to the power seat switch LH on the seat cush

Page 64 of 4171

INFINITI QX56 2009  Factory Service Manual 
ADP-50
< COMPONENT DIAGNOSIS >
SLIDING SWITCH
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DRIVER SEAT CONTROL UNIT OUTPUT
1. Connect the driver seat cont