ABS Control Module Parts Restriction - keywords air brake C0046 C0047 C0051 C0052 C0221 C0222 C0223 C0224 C0225 C0226 C0227 C0228 C0229 C0035 C0037 C0040 C0041 C0042 C0110 C0220 C0550C0899 C0900

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

ABS Control Module Parts Restriction

Since the last restriction we have made some quality improvements and we want to verify the improvements. Besides some software improvements we have improved the electronic service information. So starting on November 6, 2006 we will be putting the ECU's back on restriction for the following models GMT560 C-Series, Conventional Cab, GMC Topkick, Chevrolet Kodiak, GMT560 T/F- Series Tilt Cab, GMC F model, Chevrolet F-model.

We will be restricting the following ECU's.

Those Part Numbers are:

For the C/T- Model 2005/2006 F3 Air ABS/TCS Control Module: 88982731, 88982732, , 88982733, 88982734, 88982735, 88982736

For the C- Model 2005 Hydraulic ABS/TCS Control Modules : 889835852, 88935853, 88983893, 89059083.

For the C- Model 2006 Hydraulic ABS/TCS Control Modules : 88983893, 19133318, 19133321, 88983852

Prior to calling PQC please refer to Service Information for ECU Diagnostics.

Attached is a questionnaire that engineering needs to have filled out prior to contacting PQC at 1-866-654-7654. If you need Technical Assistance Please contact the Medium Duty Technical Assistance Center at 1-800-633-4863 / Prompt #3 (U.S. dealers only). Canadian dealers should contact the Medium Duty Truck group at Canada TAC, 1-800-263-7740 (English) or 1-800-263-7960 (French).

Your continued cooperation with these types of programs is helping all of us achieve our goal of being the Highest Quality Manufacturer of Motor Vehicles.

ECU Questionnaires

Caller's Name/Position: _________________________

__ Number of times in for the same condition

__ Number of days vehicle in dealership for same condition

__ Y / N - Is the vehicle modified/non-production accessories (List below)

Customer Complaint: _________________________________________________

___________________________________________________________________

If the complaint is water intrusion, be specific as to where the water is entering (Example: Connector, seal, traveling along the wire etc[mldr ])

List DTC: __________________________________________________________

Have you reviewed the Service manual section for Antilock Brake System/Air Antilock Brake System? _________

What SI Document ID# did you use?_______________________________________

Document each step of the trouble chart. (Include all DVM readings/comments)

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Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.