Engine Controls - PCM Software Update Precautions

09-009

March 21, 2009

Applies To:
See VEHICLES AFFECTED

Disconnect the AcuraLink Update Connector Before Updating the PCM (Supersedes 09-009, dated February 28, 2009, to revise the information marked by the black bars and asterisks)

*REVISION SUMMARY

^ Under BACKGROUND and VEHICLES AFFECTED, early production 2009 RLs and TSXs with Tech Package have been added.

^ Under WARRANTY IN FORMATION, a footnote was added to indicate that the warranty information in this service bulletin can only be used when submitting a warranty claim for PCM updating.

^ Under PROCEDURE, separate AcuraLink update connector disconnection procedures were added for RL and for TSX.*

BACKGROUND

*On some 2009 RLs, TLs, and TSXs with Tech Package (see VEHICLES AFFECTED), an AcuraLink control unit (XM receiver) communication error requires that you disconnect the AcuraLink control unit 5P update connector before doing a PCM update. If the AcuraLink update connector is not disconnected, the PCM may not accept the update, or the engine may not start after the update. To correct either of these problems, disconnect the AcuraLink update connector, and redo the update.*

VEHICLES AFFECTED

WARRANTY CLAIM INFORMATION*

In warranty:
The normal warranty applies.

Operation Number: 1255A2C

Flat Rate Time: 0.2 hour

Skill Level: Repair Technician

*The warranty information in this service bulletin can only be used when submitting a warranty claim for PCM updating. For warranty information on PCM updating, refer to the specific service bulletin for the symptom you are repairing.

Out of warranty:
Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Parts and Service Manager or your Zone Office. You must request consideration, and get a decision, before starting work.

*PROCEDURE: RL

NOTE:
This procedure is required only if you are updating the PCM.

1. Remove the trunk left side trim panel:

^ Refer to page 20-83 of the 2009 RL Service Manual, or

^ Online, enter keywords TRUNK TRIM, and select Interior Trim Removal/Installation- Trunk Area from the list.

2. Locate and disconnect the AcuraLink control unit 5P update connector.

3. Do the PCM update. (Refer to the specific service bulletin for the symptom you are repairing.)

4. After you complete the PCM update, reconnect the AcuraLink control unit 5P update connector.

5. Reinstall the trunk left side trim panel in the reverse order of removal.*

PROCEDURE: TL

NOTE:
This procedure is required only if you are updating the PCM.

1. Before updating the PCM, make sure the engine start/stop button is in OFF mode.

2. Remove the glove box:

^ Refer to page 20-128 of the 2009 TL Service Manual, or

^ Online, enter keyword GLOVE, and select Glove Box Removal/Installation from the list.

3. Locate and disconnect the AcuraLink control unit 5P update connector.

4. Do the PCM update. (Refer to the specific service bulletin for the symptom you are repairing.)

5. After you complete the PCM update, reconnect the AcuraLink control unit 5P update connector.

6. Reinstall the glove box in the reverse order of removal.

*PROCEDURE: TSX

NOTE:
This procedure is required only if you are updating the PCM.

1. Remove the rear seat right side bolster:

^ Refer to page 20-177 of the 2009 TSX Service Manual, and do steps 1 thru 4 of the Seat Side Bolster procedure, or

^ Online, enter keywords REAR SEAT, select Rear Seat Removal/Installation from the list, and do steps 1 thru 4 of the Seat Side Bolster procedure.