GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2004 🢒 GTO 🢒 Engine 🢒 Engine Controls - 5.7L 🢒 Instrument Cluster Schematics
Figure 1:

Instrument Panel Cluster (IPC) Power and Ground, Serial Data
Object Number: 1357146 Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Trip Odometer, ABS Off, Cruise Control, Fuel, ECT Indicators, Speedometer, Tach
Main, Blower, Rad Fan Small, Power Door Locks, Theft, Horn, Power Windows Fuses
Turn Signals, Heated Rear Window, HVAC and Instruments Fuses
Turn Signals, Heated Rear Window, HVAC and Instruments Fuses
SP100 and G102
Front Marker Lamps
Ignition Switch
Ignition Switch
Figure 2:

Trip Odometer, ABS Off, Cruise Control, Fuel, ECT Indicators, Speedometer, Tachometer
Object Number: 1357147 Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
MIL, Brake, SCR, Door Ajar, Seat Belt Indicators
IPC Power and Ground, Serial Data
Figure 3:

MIL, Brake, SCR, Door Ajar, Seat Belt Indicators
Object Number: 1357148 Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Charge, DRL, Hi Beam, Fog Lamps, Turn Indicators
Trip Odometer, ABS Off, Cruise Control, Fuel, ECT Indicators, Speedometer, Tach
Figure 4:

Charge, DRL, Hi Beam, Fog Lamps, Turn Indicators
Object Number: 1357149 Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
MIL, Brake, SCR, Door Ajar, Seat Belt Indicators
Turn Signal Switch and Lamps