2009 INFINITI QX56 Factory Service Manual

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Page 2593 of 4171

INFINITI QX56 2009 Factory Service Manual LAN-24 < BASIC INSPECTION >[CAN FUNDAMENTAL] DIAGNOSIS AND REPAIR WORKFLOW On CAN DIAG SUPPORT MNTR (without PAST), “UNK WN” is indicated even though the item is not used in the trouble diagnosis.

Page 2594 of 4171

INFINITI QX56 2009 Factory Service Manual LAN DIAGNOSIS AND REPAIR WORKFLOWLAN-25 < BASIC INSPECTION > [CAN FUNDAMENTAL] C D E F G H I J K L B A O P N h. Reception item of “ABS”: “UNKWN” is not indicated. This indicates normal communi

Page 2595 of 4171

INFINITI QX56 2009 Factory Service Manual LAN-26 < BASIC INSPECTION >[CAN FUNDAMENTAL] DIAGNOSIS AND REPAIR WORKFLOW Reception item of “IPDM-E”: On “ECM”, “OK” is indicated. IPDM-E communicates normally with ECM. Put a check mark

Page 2596 of 4171

INFINITI QX56 2009 Factory Service Manual LAN DIAGNOSIS AND REPAIR WORKFLOWLAN-27 < BASIC INSPECTION > [CAN FUNDAMENTAL] C D E F G H I J K L B A O P N 5. Perform the inspection for the detected error circui t. For the inspection procedure, re

Page 2597 of 4171

INFINITI QX56 2009 Factory Service Manual LAN-28 < BASIC INSPECTION >[CAN FUNDAMENTAL] DIAGNOSIS AND REPAIR WORKFLOW • Refer to “MALFUNCTION AREA CHART”. Past Error — Open Circuit — Review CAN communication signal chart based on inf

Page 2598 of 4171

INFINITI QX56 2009 Factory Service Manual LAN DIAGNOSIS AND REPAIR WORKFLOWLAN-29 < BASIC INSPECTION > [CAN FUNDAMENTAL] C D E F G H I J K L B A O P N 1. SELF-DIAG RESULTS: Inspect the control units indicating “U1000” or “U1001” on S

Page 2599 of 4171

INFINITI QX56 2009 Factory Service Manual LAN-30 < BASIC INSPECTION >[CAN FUNDAMENTAL] DIAGNOSIS AND REPAIR WORKFLOW c. Reception item of “TCM”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means TCM could not receive t

Page 2600 of 4171

INFINITI QX56 2009 Factory Service Manual LAN DIAGNOSIS AND REPAIR WORKFLOWLAN-31 < BASIC INSPECTION > [CAN FUNDAMENTAL] C D E F G H I J K L B A O P N b. Reception item of “ABS”: Assume that the unit could not receive the signal from ECM
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