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System Tests: Notes

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See 1995 GENERAL MOTORS CORP. COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
SYSTEM TESTS

Symptom Perform Test
Power Door Locks Do Not Operate From Either Switch (2-Door) TEST A 
Both Switches Only Open One Door Lock (2-Door) TEST B 
None Of The Door Lock Motors Lock Or Unlock (4-Door) TEST C 
Both Switches Only Open One Door Lock (4-Door) TEST D 
Power Door Locks Only Work From One Lock Switch (All Vehicles) TEST E 
Cargo Door Lock Motor Does Not Lock And/Or Unlock (Suburban) TEST F