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 indicators illuminate briefly at key up unless otherwise noted:
| • | Antilock Brake System (ABS) Indicator |
| • | Traction Control Indicator |
| • | Engine Oil Pressure Indicator |
| • | Engine Oil Level Indicator |
| • | Service Vehicle Soon (SVC) Indicator |
| • | Automatic Headlamp Leveling (AHL)/Adaptive Forward Lighting (AFL) Indicator |
| • | Coolant Temperature Indicator |
| • | Engine Oil Pressure Indicator |
| • | Tire Pressure Monitoring System Indicator |
Indicators and Warning Messages
Refer to
Indicator/Warning Message Description and Operation.
Fuel Gage
The instrument panel cluster (IPC) displays the fuel level as determined by the engine control module (ECM). The IPC receives a serial data message from the steering column control module (SCCM) indicating the fuel level volume. The fuel gage defaults
to empty (E) if:
| • | The ECM detects that the fuel level information is invalid. |
| • | The ECM detects a malfunction in the fuel level sensor circuit. |
| • | The IPC detects a loss of serial data communications with the SCCM. |
When the fuel level is less than a certain low predetermined level, the low fuel indicator displays in the IPC.
Speedometer
The instrument panel cluster (IPC) displays the vehicle speed based on serial data message from the steering column control module (SCCM). The SCCM receives vehicle speed data from the ECM via the serial data circuit. The speedometer will default to 0 km/h
(0 mph) if:
| • | The ECM detects that the engine speed information is invalid. |
| • | The ECM detects loss of serial data communication with the EBCM. |
| • | The SCCM detects a loss of serial data communications with the ECM. |
| • | The IPC detects a loss of serial data communications with the SCCM. |
The speedometer also has an overspeed warning function (if equipped). If the vehicle speed exceed 120 km/h the IPC sends a serial data message to the steering column control module (SCCM) to activate the overspeed acoustic alarm. This alarm sounds
to remind the vehicle operator of the vehicle speed.
Tachometer
The instrument panel cluster (IPC) displays the engine speed as determined by the ECM. The IPC receives a serial data message from the steering column control module (SCCM) indicating the engine speed. The tachometer will default to 0 RPM if:
| • | The ECM detects that the engine speed information is invalid. |
| • | The SCCM detects a loss of serial data communications with the ECM. |
| • | The IPC detects a loss of serial data communications with the SCCM. |
Odometer
The ECM calculates the vehicle driven distance based on wheel speed sensor signal from the ABS module. The ABS module transmits the wheel speed signal to the ECM via the serial data circuit. The ECM sends the vehicle driven distance information to the
steering column control module (SCCM) via the serial data circuit. The SCCM sends the vehicle driven distance information to the IPC via the serial data circuit. The IPC uses the vehicle driven distance data to calculate and display the vehicle odometer. The
odometer values cannot be reset.
The vehicle odometer is displayed in the lower line of the message center in the IPC. If the odometer receives an invalid odometer data, the IPC displays dashes (- - -) in the odometer display. Certain text messages and vehicle information
are also displayed in place of the odometer. The following vehicle information are displayed in the odometer display:
| • | Service Interval Indicator - The vehicle service interval indication (SII) is displayed in the odometer. When the SII display is required INSP, INSP2, INSP3 or INSP4. This message reminds the driver that the vehicle needs to be serviced. Service
intervals are fixed or flexible. A flexible service interval indicates when the engine oil needs to be changed and the interval between engine oil changes can be reset depending on the driving condition. Fixed service intervals are set and required vehicle service
intervals. |
| • | Electronic Stability Program (ESP) - If the ESP is switched ON, 'ESP ON' message is displayed for approximately 2 seconds. If the ESP is switched OFF, 'ESP OFF' message displays until the trip odometer switch in the IPC is pushed to
switch the display back to odometer. |
| ⇒ | Cruise Control - If the cruise control is enabled 'CC ON' message displays for 2 seconds and if the cruise control is disabled 'CC OFF' is displayed for 2 seconds. |
The odometer display also displays the IPC program 3 digit code and the 1 digit program version when the IPC is being programmed.
Trip Odometer
The vehicle trip odometer is displayed in the upper line of the message center in the IPC. The trip odometer display shows the current distance travelled in miles or kilometers since the last reset. This value can be reset to zero at any time and restarted
from the trip odometer switch located in the IPC. Certain text messages are also displayed in place of the trip odometer. The following text messages are displayed in the odometer display:
| • | PROG - This is displayed in the upper line of the trip odometer display when the IPC requires programming. |
| • | FULL - If maximum odometer display is achieved, FULL is displayed in the trip odometer display. |
