2008 INFINITI QX56 transmission

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Page 3551 of 4083

INFINITI QX56 2008  Factory Service Manual TM-4
Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................
173
Precaution Necessary for Steerin

Page 3552 of 4083

INFINITI QX56 2008  Factory Service Manual DIAGNOSIS AND REPAIR WORKFLOWTM-5
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000001603985
INTRODUCTION
The TCM receives a si

Page 3556 of 4083

INFINITI QX56 2008  Factory Service Manual A/T CONTROL SYSTEMTM-9
< FUNCTION DIAGNOSIS >
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Cross-Sectional View (4WD models)INFOID:0000000001603988
Shift MechanismINFOID:0000000001603989
The automatic transmission

Page 3558 of 4083

INFINITI QX56 2008  Factory Service Manual A/T CONTROL SYSTEMTM-11
< FUNCTION DIAGNOSIS >
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• —Operates
• —Operates during “pro gressive” acceleration.
• —Operates and effects power transmission whi

Page 3567 of 4083

INFINITI QX56 2008  Factory Service Manual TM-20
< FUNCTION DIAGNOSIS >
A/T CONTROL SYSTEM
TCM Function
INFOID:0000000001603990
The function of the TCM is to:
• Receive input signals sent from  various switches and sensors.
• Determine req

Page 3568 of 4083

INFINITI QX56 2008  Factory Service Manual A/T CONTROL SYSTEMTM-21
< FUNCTION DIAGNOSIS >
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CONTROL SYSTEM DIAGRAM 
CAN CommunicationINFOID:0000000001603991
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a ser

Page 3569 of 4083

INFINITI QX56 2008  Factory Service Manual TM-22
< FUNCTION DIAGNOSIS >
A/T CONTROL SYSTEM
Input/Output Signal of TCM
INFOID:0000000001603992
*1: Spare for output speed sensor
*2: Spare for accelerator pedal position signal
*3: If these input

Page 3572 of 4083

INFINITI QX56 2008  Factory Service Manual A/T CONTROL SYSTEMTM-25
< FUNCTION DIAGNOSIS >
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*1: Full phase real-time feedback control monitors move ment of gear ratio at gear change, and controls oil
pressure at re