Engine Controls - Engine No Start/No Crank/DTC's Set

Classification:
EL04-032b

Reference:
ITB04-061b

Date:
October 11, 2005

2004-2005 QX56; ENGINE WILL NOT CRANK, AND/OR START,
AND/OR TRANSMISSION IMPROPER OPERATION

The Parts Information section has been amended for 2004 and 2005 MY vehicles.

No other sections have been changed. Please discard all previous copies of ITB04-061a.

APPLIED VEHICLES:

2004 - 2005 QX56 (JA60)

IF YOU CONFIRM:

Any of the following:

^ The engine will not crank (starter will not operate).

^ The engine cranks but will not start.

^ Code U1000 and/or U1001 (CAN COMMUNICATION LINE) is stored in the ECM*.

* Multiple DTCs may also be stored (i.e. P0462, P1212, P1705, P16xx, P18xx, C11xx).

^ TCM BCM and/or IPDM will not display on the CONSULT-II Systems screen.

^ The transmission doesn't function properly (i.e. harsh shift slips improper shift timing etc.).

DETERMINE IF:

Connector F9 has water or corrosion.

NOTE:
If there is no water or corrosion in the connector this bulletin does not apply. Go back to ASIST for further diagnostic and repair information.

ACTIONS:
Replace the entire Engine Control Harness and the A/T assembly Harness Connector.

IMPORTANT:
The purpose of "ACTIONS" (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Service Procedure as it contains information that is essential to successfully completing this repair.





PARTS INFORMATION

CLAIMS INFORMATION





Submit a Primary Failed Part (PP) line claim using the claims coding shown.

SERVICE PROCEDURE

1. Disconnect connector F9 (see Figure 1).





Connector F9 is located on the right side (passenger side) of the transmission.

2. Inspect the connector for water or corrosion.

^ If no water or corrosion is found in the connector this bulletin does not apply. Go back to ASIST for further diagnostics and repair information.

^ If there is water or corrosion in the connector complete step 3 and 4.





3. Replace the All assembly Harness Connector (see Figure 2).

^ Use the new connector listed in the Parts information.

^ The transmission valve body will need to be removed to replace this connector.

^ Refer to section All in the Service Manual (ESM) as needed for connector replacement information.





4. Replace the entire Engine Control Harness (see Figure 3).

^ Use the correct Engine Control (EGI) Harness listed in the Parts Information. Refer to the Service Manual (ESM) as needed for harness replacement information.





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