It Is Not A PATS Issue If • The “Service Engine Soon” light is illuminated. (Investigate PCM system) • There is no communication with...

GM vehicles produced after 1995 Engine will not start after replacing a faulty Powertrain Control Module (PCM). Proper relearn procedure...

A drive procedure will be required to allow the module to learn adaptive transmission pressure control and ensure optimal shift quality....

See above Document for Vehicle list PIP4670E Do Not Swap Modules in Vehicles With Global Electrical Systems Supersession Statement This...