PIP5109F Service Bulletin/Repair Instructions

File in Section:
Service Bulletin
Bulletin No.:

Date:
PIP5109F

September, 2014
PRELIMINARY INFORMATION

Subject:
PQC Part Restriction - E92 ECM Restriction Part Number 12656993 / 12662034
Models:
2015 Chevrolet Tahoe, Suburban with V8 (L83, L86) gas engine

2015 GMC Yukon and Yukon XL with V8 (L83, L86) gas engine

2015 Cadillac Escalade with V8 (L86) gas engine

2014-2015 Chevrolet Silverado/GMC Sierra with V6 (LV1, LV3) or V8 (L83, L86) gas

engine

2014-2015 Chevrolet Corvette with LT1 engine

2014-2015 Cadillac XTS with LF3 engine

2014-2015 Cadillac CTS with LF3, LFX engine

2014-2015 Cadillac ATS with LFX engine

Restricted Part Number:12656993 / 12662034
This PI was superseded to update Recommendation/Instructions. Please discard PIP5109E.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern

As part of our ongoing quality improvement efforts, the following part number will be placed on restriction through the

PQC (effective Monday 5/6/2013) to assist GM Engineering with product feedback.

Restricted Part Number: 12656993 and 12662034
Recommendation/Instructions

If your diagnostics using SI, have led to the replacement of the ECM, please complete the following BEFORE

contacting the PQC at 1-866-654-7654.

Caller’s Name/Position:

Direct Phone Number:

Q1: Is the Restricted part being requested for:

• Customer Pay

• A Model Year Not Listed

• A Vehicle Line Not Listed

Complete the following if you are working on a 2014 Chevrolet Silverado / GMC Sierra equipped with LV1, LV3, L83

and L86 gas engines (not L96 or LC8 gas engines and not the Duramax diesel engine), Chevrolet Corvette with LT1

engine, Cadillac XTS with LF3 engine, Cadillac CTS with LF3, LFX engines, Cadillac ATS with LFX.

Q2: Customer’s Concern: If SES light is on,

What is the DTC?

List all history and current (active) DTCs in all control modules:

Note: : If P0700 is present in the ECM, it should NOT be necessary to replace the ECM.

The P0700 DTC is caused by a concern from the TCM and should be accompanied by another DTC.

Please refer to the appropriate trouble tree on SI for the DTC that accompanied TCM P0700 to resolve the concern.

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.

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