Engine Controls - ECM Replacement Procedures: Overview

Classification:
EC00-008c

Reference:
ITB00-038c

Date:
April 16, 2004

ECM REPLACEMENT PROCEDURES

ATTENTION:
THIS BULLETIN HAS BEEN REVISED.

^ The Service Procedures for replacing an ECM on an Applied vehicle were revised.

^ Please use this bulletin ITB00-038c for complete information.

^ Discard all previously distributed copies of ITB00-038.

APPLIED VEHICLES:
All 2000 and later
1999 Q45 (FY33)
1999 QX4 (JR5O) from VIN JNRAR07**XW060101

IF YOU CONFIRM:

The Electronic Control Module (ECM) needs to be replaced on a 2000 MY and later vehicle, or an Applied 1999 MY vehicle (see above).

ACTIONS:

^ Re-register all customer keys if the vehicle has ECM based NATS (see step 1).

^ Check ASIST for any new updates for the new ECM you're installing (see steps 2 - 4).

^ Perform the "ACCELERATOR PEDAL & THROTTLE VALVE CLOSED POSITION LEARNING" procedure (see step 5).

^ After installing the new ECM, perform the "IDLE AIR VOL LEARNING" procedure (when applicable) using CONSULT-II. See step 6.

^ For 2005 and later vehicles, enter the vehicle VIN into the new ECM (see step 7).

CAUTION:
Failure to perform all the work steps in the specified order can cause poor engine running, MIL "ON", or vehicle emission test rejection.

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.





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