GM Global A Architecture list

MC-10129857-9999.pdf

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See above Document for Vehicle list

PIP4670E Do Not Swap Modules in Vehicles With Global Electrical Systems

Supersession Statement

This PI was superseded to update model list. Please discard PIP4670D.

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

Condition / Concern

A technician may comment of a no start or another concern after swapping an ECM or other module from one vehicle to

another.

Recommendations / Instructions

The Global Architecture electrical system associated with these vehicles does not allow controller swaps between

vehicles. Swapping ECMs or other modules (including Radio, BCM, EBCM, SDM, TCM,ECC (HVAC), EPS, HPCM, & IPC)

between two vehicles with the Global Architecture electrical system will result in damaging both controllers (A NO START

CONDITION WILL OCCUR ON BOTH VEHICLES IF THESE MODULES ARE SWAPPED) due to the new vehicle security

code protocol (environment) starting with the 2010 MY GDS applications.

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.

Additional SI Keywords

B389A B3902