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Indicator & Gauge PINOUT Test

Check voltage or resistance at Instrument Panel Cluster (IPC) connector to determine if proper signals are supplied to IPC. See Fig 1 . See WIRING DIAGRAM. See IPC CONNECTOR PINOUT table

Fig 1: Identifying IPC Connector Terminals
G93C41402Courtesy of GENERAL MOTORS CORP.
IPC CONNECTOR PINOUT

Terminal (Wire Color) Description
A1 (PNK) Power From Fuse No. 9
A2 (PUR) Fuel Gauge Signal
A3 (GRY) Security Indicator Signal
A4 (BRN/WHT) Service Engine Indicator
A5 (PNK) Power From Fuse No. 9
A6 (YEL/BLK) Low Coolant Indicator
A7 (BRN) Air Bag Indicator
A8 (PUR/WHT) TCS Indicator
A10 (TAN/WHT) Brake indicator
A11 (LT GRN) High Beam Indicator
A12 (YEL) Fasten Seat Belt Indicator
A13 (ORN) Power From Fuse No. 7
A14 (RED) Generator Output Indicator
A15 (BRN) Oil Level Indicator
A16 (DK BLU) Low Trac Indicator
A17 (DK GRN) Coolant Temp Indicator
B1 (BRN) Odometer Illumination
B2 (GRY) Instrument Illumination
B3 (BLK) Ground
B4 (WHT) Skip Shift Indicator
B5 (BLU/WHT) Right Turn Indicator
B12 (DK GRN/WHT) Vehicle Speed Signal
B13 (WHT) Tachometer Signal
B14 (LT BLU/WHT) Left Turn Signal
B15 (BLK/WHT) Ground
B16 (TAN) Oil Pressure Indicator
B17 (LT GRN) ABS Fail Signal