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 occurs at key up:
| • | The air bag indicator flashes 7 times. |
| • | The ABS indicator illuminates briefly. |
| • | The service engine soon indicator (MIL) illuminates briefly. |
| • | The charge indicator illuminates briefly. |
| • | The seat belt indicator illuminates for 70 seconds or until the
driver seat belt is latched. |
| • | The brake indicator illuminates briefly. |
| • | All message center segments illuminate briefly. |
| • | All odometer segments illuminate briefly. |
| • | The PRNDL segment illuminates briefly. |
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 60°C (140°F) or below 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. |
Engine Oil Pressure Gage
The IPC displays the engine oil pressure as determined by the PCM. The
IPC receives a class 2 message from the PCM indicating the engine
oil pressure. The engine oil pressure gage defaults to 0 psi
(0 kPa) or below if:
| • | The PCM detects low engine oil pressure and the signal circuit
is low. |
| • | 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. |
When the fuel level is less than a pre-determined value, the low fuel
indicator illuminates.
Odometer
The IPC contains a season odometer and a trip odometer. Momentarily
press the trip/reset switch on the IPC in order to toggle between the season
odometer and the trip odometer. Press the trip/reset switch for greater
than 2 seconds, while the trip odometer is displayed, in order
to reset the trip odometer. The IPC displays the vehicle mileage and
trip mileage as determined by the IPC. The IPC calculates the mileage
based on the class 2 vehicle speed message from the PCM. The
IPC calculates mileage based on the class 2 wheel speed message
from the EBCM if a loss of communication or malfunction occurs with 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 button on the driver information
center (DIC). The associated indicator km illuminates in metric mode.
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 detects a loss of class 2 communications with the
PCM. |
Speedometer
The IPC displays the vehicle speed as determined by the IPC. The
IPC calculates the mileage based on the class 2 vehicle speed
message from the PCM. The IPC calculates vehicle speed based on the class 2
wheel speed message from the EBCM if a loss of communication or malfunction
occurs with the PCM. The speedometer defaults to 0 km/h (0 mph)
if the IPC detects a loss of class 2 communications with both the
PCM and the EBCM.
Tachometer
The IPC displays the engine speed as determined by the PCM. The IPC
receives a class 2 message from the PCM indicating the engine speed.
The tachometer will default to 0 rpm if:
| • | The PCM detects a malfunction in the engine speed sensor circuit. |
| • | The IPC detects a loss of class 2 communications with the
PCM. |
Voltmeter
The IPC displays the system voltage as determined by the body control
module (BCM). The IPC receives a class 2 message from the BCM indicating
the system voltage. The voltmeter will default to 8 volts if:
| • | The BCM detects a malfunction in the BCM power circuit. |
| • | The IPC detects a loss of class 2 communications with the
BCM. |
