Attachment III - Technical Information
INSTRUMENT CLUSTER INSPECTION AND/OR REPLACEMENTAFFECTED VEHICLES:
CERTAIN 2001 MODEL YEAR TOWN CAR
OVERVIEW
This document details the procedure for identifying affected Hybrid Electronic Cluster (HEC) modules by using the NGS or WDS service tools. HEC modules that are identified as affected components must be replaced.
INSPECTION/VERIFICATION
1. Using WDS or NGS, verify the Hybrid Electronic Cluster (HEC) module identification part number.
^ If the number is either 1W1F-10849-AA or 1W1F-10849-BA, the HEC module must be replaced. Perform the Service Procedure that follows.
^ If the number is anything other than the two listed above, the HEC module does not need to be replaced. Return the vehicle to the customer.
SERVICE PROCEDURE
NOTE:
Make sure ALL of the customer's keys are present for HEC module replacement.
1. Replace the HEC module following the service procedure in Section 413-01 of the Town Car Workshop Manual.
2. Program all of the customer's keys to the new HEC module.
3. If the vehicle fails to start after replacing the HEC module and programming all the keys, disconnect the battery negative cable for ten minutes then follow the key programming sequence again.