Instrument Cluster Description and Operation. Cadillac Eldorado 2001

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2001 🢒 Eldorado 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Instrument Cluster Description and Operation

Displays Test

Certain instrument panel cluster (IPC) features are tested when the ignition is turned on in order to verify the features are working properly. The following illuminate briefly or cycle at key up:

•	The air bag indicator (flashes 7 times)

•	The ABS indicator

•	The service engine soon indicator (MIL)

•	The charge indicator

•	The fuel gauge

•	The speedometer

•	All message center segments

Indicators and Warning Messages

Refer to Indicator/Warning Message Description and Operation .

Engine Coolant Temperature Gauge

The IPC displays the engine coolant temperature as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the engine coolant temperature. The engine coolant temperature gauge defaults to 75°C (160°F) or below if:

•	The PCM detects a malfunction in the engine coolant temperature sensor signal circuit.

•	The IPC detects a loss of class 2 communications with the PCM.

Fuel Gauge

The IPC displays the fuel level as determined by the body control module (BCM). The IPC receives a class 2 message from the BCM indicating the fuel level percent. The fuel gauge defaults to empty if:

•	The BCM detects a malfunction in the fuel level sensor circuits.

•	The IPC detects a loss of class 2 communications with the BCM.

Odometer

The IPC contains a season odometer and a trip odometer. Press the TRIP RESET switch on the DIC for greater than 2 seconds in order to reset the trip odometer. The IPC calculates the mileage based on the vehicle speed signal circuit from the PCM. The odometer will display 'error' if an internal IPC memory failure is detected. The odometer displays either miles or kilometers as requested by the activation of the ENGLISH/METRIC option display on the driver information center (DIC). The associated indicator (km or MI) illuminates.

PRNDL Display

The IPC displays the selected gear position as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the gear position. The PRNDL display blanks if:

•	The PCM detects a malfunction in the transmission range switch circuit.

•	The IPC receives a class 2 message indicating the park position and the column park switch indicates a position other than park (open input).

•	The IPC detects a loss of class 2 communications with the PCM.

Speedometer

The IPC displays the vehicle speed based on information from the PCM. The PCM converts the data from the vehicle speed sensor to a 4000 pulses/mile signal. The IPC uses the vehicle speed signal circuit (4000 pulses/mile) from the PCM in order to calculate the vehicle speed. The speedometer defaults to 0 km/h (mph) if a malfunction in the vehicle speed signal circuit (4000 pulses/mile) exists.

Tachometer

The IPC displays the engine speed based on information from the PCM. The PCM converts the data from the engine speed sensor to a 2 pulses/engine revolution signal. The IPC uses the engine speed signal circuit (2 pulses/engine revolution) from the PCM in order to calculate the engine speed. The tachometer defaults to 0 RPM if a malfunction in the engine speed signal circuit (2 pulses/engine revolution) exists.