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 will illuminate briefly or flash at key up:
| • | The engine coolant indicator |
| • | The engine oil pressure indicator |
| • | The fasten safety belts indicator |
| • | The SERVICE ENGINE SOON indicator (MIL) |
| • | The TRACTION CONTROL indicator |
Indicators and Warning Messages
Refer to
Indicator/Warning Message Description and Operation
.
Engine Coolant Temperature Gage
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 gage defaults
to C if:
| • | The PCM detects a malfunction in the engine coolant temperature
sensor circuit. |
| • | The IPC detects a loss of class 2 communications with the
PCM. |
Fuel Gage
The IPC displays the fuel level as determined by the PCM. The IPC receives
a class 2 message from the PCM indicating the fuel level percent. The
fuel gage defaults to empty if:
| • | The PCM detects a malfunction in the fuel level sensor circuit. |
| • | The IPC detects a loss of class 2 communications with the
PCM. |
Odometer
The IPC contains a season odometer and two trip odometers. The IPC displays
the vehicle mileage and trip mileage as determined by the IPC. 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 briefly pressing the ENG/MET button on the driver information center
(DIC). Briefly pressing the TRIP A/B button on the DIC will display the
trip odometer A or the trip odometer B. Pressing the TRIP RESET button for
greater than 2 seconds will reset the trip odometer that is
displayed.
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
signal circuit. |
| • | The IPC receives a class 2 message indicating the park
position and the column park switch indicates a position other than park. |
| • | The IPC detects a loss of class 2 communications with the
PCM. |
Speedometer
The IPC displays the vehicle speed in response to the information received
from the power control module (PCM). The PCM converts the data received from
the vehicle speed sensor into a 4000 pulses/mile signal. The IPC uses
the vehicle speed signal circuit from the PCM in order to calculate
the vehicle speed. The speedometer defaults to 0 km/h
(0 mph) if a malfunction in the vehicle speed signal circuit
exists.
The speedometer displays either kilometers per hour or miles per hour
as requested by briefly pressing the ENG/MET button on the DIC.
The speedometer display configuration can be changed as requested
by the activation of the DSPL MODE button on the DIC. The
speedometer can be configured in the following formats:
| • | Analog and digital displays |
Tachometer
The IPC displays the engine speed in response to the information received
from the PCM. The PCM converts the data received from the engine into a 2
pulses per engine revolution signal. The IPC uses the engine speed
signal circuit 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 exists.
Voltmeter
The IPC displays the system voltage as detected at the ignition 1
input of the IPC.
