The instrument panel cluster (IPC) indicators illuminate
by one of the following methods:
| • | The IPC detects a concern with a discrete input. |
| • | A module sends an indicator illumination request message, via
the class 2 serial data line |
The driver information center (DIC) may display messages when some indicators
illuminate. Several different conditions may illuminate some IPC indicators.
ABS Indicator (ISO Symbol) (Amber)
The ABS indicator may only be ON during RUN. The IPC illuminates the
ABS indicator under the following conditions:
| • | The electronic brake control module (EBCM) sends a class 2
serial data message requesting illumination due to a concern in the ABS system. |
| • | The IPC detects a loss of communications with the EBCM and the
back-up discrete ABS indicator signal is open. |
When the ABS indicator is ON, the IPC also illuminates the TRACTION
CONTROL indicator and displays the SERVICE STABILITY SYS message on the DIC.
AIR BAG Indicator (Red)
The AIR BAG indicator may only be ON during RUN. The IPC illuminates
the AIR BAG indicator under the following conditions:
| • | The IPC flashes the indicator 7 times during the bulb check. |
| • | The inflatable restraint sensing and diagnostic module (SDM) sends
a class 2 serial data message requesting illumination due to a concern
in the SIR system. |
| • | The IPC detects a loss of communications with the SDM. |
When the AIR BAG indicator is ON after bulb check, the IPC also displays
the SERVICE AIR BAG message on the DIC.
Battery Charge Indicator (Red)
The battery charge indicator may only be ON during RUN. The IPC illuminates
the battery charge indicator under the following conditions:
| • | The powertrain control module (PCM) sends a class 2 serial
data message requesting illumination due to a concern in the charging system. |
| • | The dash integration module (DIM) sends the system voltage status
to the IPC via a class 2 serial data message. The IPC illuminates the
battery charge indicator when the system voltage is less than 10.5 volts
or greater than 16.2 volts for 30 seconds. The IPC will also
display one of the following messages on the DIC: |
| - | With system voltage greater than 16.2 volts, BATTERY VOLTAGE
HIGH |
| - | With system voltage less than 10.5 volts, BATTERY VOLTAGE
LOW |
BRAKE Indicator (Red)
The BRAKE indicator may only be ON during RUN. The IPC illuminates the
BRAKE indicator under the following conditions:
| • | The brake fluid is low. The IPC also displays the CHECK BRAKE
FLUID message on the DIC and sends a class 2 serial data message requesting
a single chime to sound. |
| • | The electronic brake control module (EBCM) sends a class 2
serial data message requesting illumination due to a concern in the ABS system. |
| • | The IPC detects a loss of communications with the EBCM. |
CRUISE Indicator (Blue-Green)
The CRUISE indicator may only be ON during RUN. The IPC illuminates
the CRUISE indicator under the following conditions:
| • | The powertrain control module (PCM) sends a class 2 serial
data message requesting illumination due to active cruise control. |
Engine Coolant Temperature Indicator (ISO Symbol) (Red)
The engine coolant temperature indicator may only be ON during RUN.
The IPC illuminates the engine coolant temperature indicator under the following
conditions:
| • | The engine coolant temperature is greater than 128°C (262°F).
The IPC also sends a class 2 serial data message requesting 5 chimes
to sound and displays the ENGINE COOLANT HOT/IDLE ENGINE message on the
DIC: |
The IPC controls the operation of the engine coolant temperature indicator.
The IPC will turn OFF the indicator and message when the engine coolant temperature
falls below 125°C (257°F).
Engine Oil Pressure Indicator (ISO Symbol) (Red)
The engine oil pressure indicator may only be ON during RUN. The IPC
illuminates the engine oil pressure indicator under the following conditions:
| • | The powertrain control module (PCM) sends a class 2 serial
data message requesting illumination due to low engine oil pressure. The IPC
also sends a class 2 serial data message requesting 5 chimes
to sound and displays the OIL PRESSURE LOW/STOP ENGINE message on the
DIC. |
Fasten Safety Belt Indicator (ISO Symbol) (Red)
The fasten safety belt indicator may only be ON during RUN. The IPC
illuminates the fasten safety belt indicator under the following conditions:
| • | The inflatable restraint sensing and diagnostic module (SDM) sends
the status of the driver's seat belt switch to the IPC via a class 2
message. If the seat belt is unfastened, the IPC will illuminate the fasten
safety belt indicator for 72 seconds or until the seat belt is fastened. |
If the seat belt is unfastened within 8 seconds following bulb
check, the IPC sends a class 2 serial data message requesting 5 chimes
to sound.
Front Fog Lamp Indicator (Blue-Green)
The front fog lamps indicator may only be ON during RUN. The IPC illuminates
the front fog lamps indicator when the dash integration module (DIM)
sends a class 2 serial data message indicating that the front fog
lamps are ON.
High Beam Indicator (Blue)
The high beam indicator may be ON during any power mode except for START.
The IPC illuminates the high beam indicator when the dash integration module
(DIM) sends a class 2 serial data message indicating that the high
beam headlamps are ON.
km/h Indicator (Blue-Green)
The km/h lamps indicator may only be ON during RUN. The IPC illuminates
the km/h indicator when the speedometer display is in metric units.
Left Turn Indicator (Green)
The left turn indicator may only be ON during RUN. The IPC illuminates
the left turn indicator when the IPC detects a high (voltage) input condition
from the left turn signal. The signal source comes from the exterior lighting
system via a discrete input. The indicator turns OFF within 150 milliseconds
after the cluster detects the high input is low.
If the IPC determines that the turn signal remains ON for more than
1.6 km (1 mile), the IPC also sends a class 2 serial
data message requesting the chime to sound and displays the TURN SIGNAL
ON message on the DIC.
LIGHTS ON Indicator (Blue-Green)
The LIGHTS ON indicator may be ON during any power mode except for START.
The IPC illuminates the LIGHTS ON indicator under the following conditions:
| • | The dash integration module (DIM) sends a class 2 serial
data message requesting illumination due to active park lamps. |
| • | Following a transition to OFF with the park lamps ON, the IPC
will illuminate the indicator for 10 minutes or until the IPC receives
a class 2 serial data message to turn OFF the indicator. At 10 minutes,
the IPC will request the status of the lighting system and will only continue
to illuminate the indicator if requested via class 2 serial data
message. |
MPH Indicator (Blue-Green)
The MPH lamps indicator may only be ON during RUN. The IPC illuminates
the MPH indicator when the speedometer display is in english units.
Rear Fog Lamp Indicator (Amber)
The rear fog lamps indicator may only be ON during RUN. The IPC illuminates
the rear fog lamps indicator when the rear integration module (RIM) sends
a class 2 serial data message indicating that the rear fog lamps
are ON.
Right Turn Indicator (Green)
The right turn indicator may only be ON during RUN. The IPC illuminates
the right turn indicator when the IPC detects a high (voltage) input condition
from the right turn signal. The signal source comes from the exterior
lighting system via a discrete input. The indicator turns OFF within 150 milliseconds
after the cluster detects the high input is low.
If the IPC determines that the turn signal remains ON for more than
1.6 km (1 mile), the IPC also sends a class 2 serial
data message requesting the chime to sound and displays the TURN SIGNAL
ON message on the DIC.
SECURITY Indicator (Amber)
The SECURITY indicator may be ON during any power mode except for START.
The IPC illuminates the SECURITY indicator under the following conditions:
| • | The theft deterrent module or rear integration module (RIM) sends
a class 2 serial data message requesting illumination due to a concern
in the theft deterrent system. |
| • | Following a transition to OFF, the IPC will illuminate the indicator
for 10 minutes or until the IPC receives a class 2 serial data
message to turn OFF the indicator. At 10 minutes, the IPC will
request the status of the theft deterrent system and will only continue
to illuminate the indicator if requested via class 2 serial
data message. |
| • | The IPC detects a loss of communications with the theft deterrent
module or RIM. |
SERVICE ENGINE SOON Indicator (MIL) (Amber)
The SERVICE ENGINE SOON indicator may be ON during START and RUN. The
SERVICE ENGINE SOON indicator identifies the ready status of the engine's
emission system. The PCM activates the indicator with a low side drive
circuit. The PCM turns ON the indicator when an emissions related failure
is detected by the PCM. The PCM illuminates the indicator the during
bulb check.
TRACTION CONTROL Indicator (Amber)
The TRACTION CONTROL indicator may only be ON during RUN. The IPC illuminates
the TRACTION CONTROL indicator under the following conditions:
| • | The electronic brake control module (EBCM) sends a class 2
serial data message requesting illumination due to a concern in the traction
control system. |
| • | The IPC detects a loss of communications with the EBCM. |
