The odometer display is entered anytime the ODO/TRIP button is pressed or upon battery reconnect. However, the odometer display is a low priority display and will not interrupt more critical information.

If the RESET button is pressed while the Odometer Message # 1 is displayed the Trip 1 odometer will reset to zero. If the RESET button is pressed while the Odometer Message # 2 is displayed the Trip 2 odometer will reset.

If the season odometer fails, the DIC will display ERROR where the season odometer values are normally placed.

Fuel information provides data received from the PCM on fuel performance for the driver. In this mode the driver can retrieve Average Fuel Economy, Instantaneous Fuel Economy, and Fuel Range. The Fuel Information displays are accessed by pressing the FUEL INFO button.

Average Fuel Economy and Fuel Range information is stored in non-volatile (KAM) memory when the ignition is turned off. Instantaneous Fuel Economy information is stored in volatile memory when the ignition is turned off.

Fuel calculations are made by the IPC at all times independent of the current DIC display mode. Separate data accumulators are maintained for each fuel display such that if the data values for one display are reset, the data values for another are not affected.

If the RESET button is pressed while viewing any of the Fuel Information displays, it will be reset to zero.

Gage Information provides selected information to the driver. The Gage Information displays are accessed by pressing the GAGE INFO button. This mode has 5 different elements:

Gage information is not stored by the IPC when the ignition is turned off. Gage information is determined from values received from class 2 serial data. The IPC is required to process all irrelevant gage data at all times regardless of the current display mode of the DIC. The DIC will display (---) where the data values are normally placed if the IPC determines that the source of gage information for that element has failed.

The following paragraphs provide detailed information for each of the 5 Gage Information modes:

Oil Pressure

Oil Pressure displays, in either English or metric units, the oil pressure as measured by the oil pressure sensor in the engine. The PCM processes the information and sends the information to the IPC as a class 2 message. The IPC also determines if the oil pressure is in the normal range through the Low Engine Oil Pressure indicator class 2 message. If the PCM detects the oil pressure sensor has failed, the PCM will send fail soft values which are also actual pressure values.

Coolant Temperature

Coolant Temperature displays, in either English or metric units, the coolant temperature as measured by the coolant temperature sensor in the engine. The PCM processes the information and sends a class 2 message to the cluster. The IPC determines if the coolant temperature is in the normal range through the Engine Coolant Fluid Temperature class 2 message. Under normal operation the PCM will send actual temperature values detected by the coolant sensor. If the PCM detects the coolant sensor has failed, the PCM will send estimated coolant temperature values. The DIC will display the word NORMAL preceding the temperature value, unless the IPC determines a condition which indicates a temperature problem. If the IPC determines a temperature problem the word normal will be replaced by HOT.

Battery Volts

The DIC displays the electrical system voltage as measured by the DIM. The DIM processes the information and sends a class 2 message to the IPC. If the IPC determines there is a SOH failure with the DIM, the IPC will use the discrete battery input as valid data and perform the same as if the IPC received the class 2 message. If the battery voltage from the DIM is below 9.5 volts, the DIC will display the word LOW preceding the voltage value. If the battery voltage from the DIM is above 16 volts, the DIC will display the word HIGH preceding the voltage value. If the battery voltage from the DIM is equal to or between 9.5 volts and 16 volts, the DIC will display the word NORMAL preceding the voltage value.

Oil Life Index

The DIC displays Oil Life Index as calculated by the PCM. Oil Life Index describes the estimated percentage oil life remaining. When the Oil Life Index drops to 10 percent, a Change Oil message is displayed. The PCM processes the information and sends a class 2 message to the IPC. The DIC will display NORMAL if the Change Oil Soon message from the PCM is not active. Once the Change Oil Soon message is received from the PCM, the DIC will indicate CHANGE OIL until the Oil Life Index is reset. If the RESET button is pressed and held for more than 5 seconds while this message is displayed, the Oil Life Index is reset to 100 percent. The status of the Oil Life Index is stored in KAM when the ignition is turned off.

Tire Pressure Status

This message indicates when a low tire pressure condition has been detected by the EBCM. The EBCM processes the information and sends a class 2 message to the IPC. The DIC message displayed does not indicate which tire has low pressure or the actual value. Once tire inflation is corrected the IPC will send a class 2 message to the EBCM to reset the value. The EBCM verifies a reset has been received by sending a new message to the IPC. The driver should see the tire status showing TIRE PRESSURE NORMAL on the DIC.

The telephone display mode is entered automatically when commanded by the cellular phone subsystem during power modes RUN, ACC, RAP, and RAP Unlock. All phone displays are constructed using a Display Hint message followed by additional class 2 messages commanded by the cellular phone subsystem. This display mode is temporary in that when the cellular phone subsystem exits its active state the DIC returns to its previous display mode.

The DIC will display a phone active display when the DIC receives both a Display Hint message and the appropriate class 2 message corresponding to it. If the phone initiates an active phone display on the DIC, but no subsequent phone activity occurs within 5 seconds, the phone will time out the operation and return to its pervious display mode. If the IPC detects a loss of communication with the cellular phone subsystem during telephone status the mode will be canceled and the DIC shall return to its pervious display mode. If the power mode switches out of RUN during telephone status, the mode will be canceled and the display cleared. When the power mode switches back to RUN, the DIC display will revert to the last message displayed prior to the telephone status mode. The driver can not acknowledge or erase phone display messages. The IPC will not store telephone data.