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Instrument Panel: Testing: Notes

WARNING: 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 COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
NOTE: Use illustrations for instrument panel cluster connector and terminal identification. See Fig 1 and Fig 2 . Refer to Fig 3 through Fig 4 to identify instrument panel clusters.
Fig 1: Identifying Instrument Panel Cluster Connector C1 Terminals
G95D15407Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Information Center Cluster Connector Terminals
G97H28404Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Instrument Cluster U23
G97E28401Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Instrument Cluster UB3
G97F28402Courtesy of GENERAL MOTORS CORP.