Classify what still works
Test every direction. One missing direction points differently than a completely dead seat.
SEATS · 2002
2002 Firebird Power Seat Inoperative Diagnosis
A seat that will not move can be a shared feed, switch, motor/drive or mechanical-load problem.
APPLICATION: 2002 Pontiac Firebird / Formula / Trans Am with the factory system described. Match options and installed hardware before applying a circuit path.
Inspect before powering parts
Look for objects in the track, damaged wiring under the seat, loose connectors and signs of previous seat removal or audio wiring.
Separate command from load
Verify the switch and feed path under the failed condition, then determine whether the affected motor/drive receives a usable command and whether the track is mechanically free.
DO NOT BUY A SEAT MOTOR YET
Factory information provides separate power-seat symptom diagnosis. Prove feed, switch/connection and mechanical load before condemning a motor.
FPV RULE
OBSERVE → MEASURE → ISOLATE → PROVE → REPAIR → VERIFY. A symptom is a starting point, not a parts verdict.