For 1990-2009 cars

Table 1: | Instrument Panel Cluster (IPC)
Table 2: | Instrument Panel Cluster Control Module Output Control

#### Instrument Panel Cluster (IPC)

Scan Tool Parameter | System State | Expected Value | Definition
--- | --- | --- | ---
Operating Conditions: Ignition ON/Engine OFF/Seat Belt Buckled/High Beams Off/Park Brake Unapplied
Battery Voltage | __ | 12.2 V (Varies) | The scan tool displays 0-19 volts. The voltage measured at the battery positive voltage circuit of the instrument panel cluster (IPC).
Engine Coolant Temperature | __ | Varies | The scan tool displays 38°C-128°C (100°F-260°F). The displayed coolant temperature gage value in the IPC. This value may slightly differ from the monitored coolant temperature.
Engine Speed | __ | 0 RPM | The scan tool displays 0-9999 RPM. The IPC monitors the engine speed signal circuit from the PCM.
Fuel Level | __ | Varies | The scan tool displays 0-100%. The IPC calculates the amount of fuel remaining in the tank based on the input from the PCM.
PRNDL State | __ | Varies | The scan tool displays Manual, Low, 2nd, 3rd, Drive, Neutral, Reverse, Park. The state of the PRNDL as commanded by the IPC.
Trip Odometer | __ | Varies | The scan tool displays miles. The IPC calculates trip odometer information from the vehicle speed data received from the PCM.
Trip Odometer | __ | Varies | The scan tool displays miles. The IPC calculates trip odometer information from the vehicle speed data received from the PCM.
Trip Reset Switch | __ | Inactive | The scan tool displays Active or Inactive. The IPC monitors the control stem on the cluster. A closed switch is displayed as Active.
Vehicle Speed | __ | 0 mph (0 km/h) | The scan tool displays 0-255 km/h (0-155 mph). The IPC monitors the vehicle speed signal circuit from the PCM

#### Instrument Panel Cluster Control Module Output Control

Scan Tool Output Control | Description
--- | ---
Lamp Test | The IPC illuminates the following indicators when you select On:

• | ABS

• | Air Bag

• | Brake

• | CRUISE

• | Fasten safety belt

• | High beam

• | SECURITY

• | Upshift - The indicators should illuminate until commanded Off.

IPC Gages | The IPC drives all gages to the maximum physical position when you select On. The IPC drives all gages to the minimum physical position when you select Off.
PRNDL Display | An underscore illuminates under each indicator in the PRNDL display until commanded Off.