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 ABS indicator illuminates for 3 seconds. |
| • | The AIR BAG indicator flashes 7 times. |
| • | The charge indicator illuminates for 3 seconds. |
| • | The BRAKE indicator illuminates for 3 seconds. |
| • | The CHECK GAUGES indicator illuminates for 3 seconds. |
| • | The fasten safety belt indicator illuminates for 20 seconds
followed by 55 seconds of flashing with the drivers seatbelt unfastened,
or, the fasten safety belt indicator will illuminate for 8 seconds
with the drivers seatbelt fastened. |
| • | The LOW FUEL indicator illuminates for 3 seconds. |
| • | The park brake indicator illuminates for 3 seconds. |
| • | The SERVICE ENGINE SOON (MIL) indicator illuminates and remains
on. |
| • | The SECURITY indicator illuminates for 3 seconds. |
| • | The SERVICE AWD indicator illuminates for 3 seconds. |
| • | The TOW / HAUL indicator illuminates for 3 seconds. |
| • | All gages sweep from their minimum physical position to their
actual physical position within 3 seconds. |
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 40°C (100°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 kPa
(0 psi) or below if:
| • | The PCM detects a malfunction in the engine oil pressure 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. |
When the IPC detects that the fuel level is less than 17 percent, the
IPC illuminates the low fuel indicator.
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 the trip mileage as determined
by the IPC. The IPC calculates the mileage based on the vehicle speed
signal from the PCM. The odometer will display 'error' if an internal
IPC memory failure is detected.
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 displays blank if:
| • | The PCM detects a malfunction in the transmission range switch
circuit. |
| • | The IPC receives a class 2 message indicating that the
park position and the column park switch indicate a position other than park. |
| • | The IPC detects a loss of class 2 communications with the
PCM. |
Speedometer
The IPC displays the vehicle speed based on the 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. If the IPC detects a malfunction in the vehicle speed signal
circuit, the IPC uses the class 2 message from the PCM indicating
the vehicle speed.
Tachometer
The IPC displays the engine speed based on the 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. If the IPC detects a malfunction in the engine speed
signal circuit, the IPC uses the class 2 message from the
PCM indicating the engine speed.
Voltmeter
The IPC displays the battery voltage as determined by the BCM. The IPC
receives a class 2 message from the BCM indicating the battery voltage.
