GM Service Manual Online
For 1990-2009 cars only
Module Information -- PROM: This displays the four digit number of the PROM incorporated into the Instrument Cluster Module (IPC).

Module Information -- Julian Date Of Build: This displays the day of the year the module was built.

Module Information -- Year Module Built: This displays the four digit year of build.

Module Information -- 8 Digit GM Part Number: This displays the part number for the IPC.

Module Information -- Component Serial #: This is the first partition of the serial number.

Module Information -- Component Serial #: This is the second partition of the serial number.

Module Information -- Component Serial #: This is the third partition of the serial number.

Module Information -- Component Serial #: This is the last partition of the serial number.

Data Display -- Data -- Battery Volts: Displays battery voltage measured from the IPC battery positive terminal circuit to the IPC ground circuit.

Data Display -- Data -- Vehicle Speed: Displays vehicle speed.

Data Display -- Data -- Engine Speed: Displays engine RPM.

Data Display -- Data -- Ignition Counter: Displays 0 to 50. The module counts each time the ignition was cycled.

Data Display -- Inputs -- Park Brake Switch: Displays switch position.

Data Display -- Inputs -- Left Turn Signal Switch: Displays switch position.

Data Display -- Inputs -- Right Turn Signal Switch: Displays switch position.

Data Display -- Inputs -- English/Metric: Displays switch position.

Data Display -- Inputs --Display Fuel Switch: Displays switch position.

Data Display -- Inputs -- Trip A/B: Displays switch position.

Data Display -- Inputs -- Display Gauge Switch: Displays switch position.

Data Display -- Inputs -- Reset Switch: Displays switch position.

Data Display -- Inputs -- Trip Reset Switch: Displays switch position.

Data Display -- Inputs -- Washer Fluid Low: Displays switch position.

Data Display -- Inputs -- Low Brake Fluid: Displays switch position.

Data Display -- Inputs -- Low Coolant Level: Displays switch position.

Data Display -- Inputs -- Ignition 1: Displays switch position.

Data Display -- Inputs -- Antilock Discrete: Displays circuit activity.

Data Display -- Outputs -- Oil Pressure Lamp : Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Cruise Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Brake Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Low Fuel Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Antilock Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Service Vehicle Soon Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs --Volt Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Hot Temp Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Fasten Seat Belts: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Traction Off Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- High Beam Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- Theft System Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Output -- Air Bag Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- MPH (kph Export) Lamp: Displays the output state of the circuit to the indicator.

Data Display -- Outputs -- kph (MPH Export) Lamp: Displays the output state of the circuit to the indicator.