Operation CHARM: Car repair manuals for everyone.

Operation






LHD

INSTRUMENT CLUSTER GAUGES

The Instrument Cluster is made up of four analog gauges.





Speedometer

The speedometer has a 0-160 Miles Per Hour (MPH) primary scale with Kilometers Per Hour (km/h) on the secondary scale. The speedometer receives wheel speed data from the CAB via the CAN data bus and can be verified by comparing the speed signal viewed by the DRB III(R) from the wheel speed sensors and the output seen on the Instrument Cluster. The Electronic Stability Program (ESP) indicator lamp located between the left and right turn signals in the speedometer face illuminates when it is activated by the Controller Antilock Brake (CAB), indicating the need to adjust driving behavior to the prevailing road conditions. Also located in the speedometers face are the trip odometer and the Flexible Service System (FSS) indicator/odometer (1). To the right and left of the speedometer face, mounted in the Instrument Cluster, are the control dials (2-3) for the FSS and the digital clock.





Tachometer

The 7000 RPM tachometer is red-lined at 6200 RPM. An engine speed signal is generated by the crankshaft position sensor and sent to the PCM. The PCM transmits the engine speed signal to the tachometer.

The tachometer also contains the digital clock and the transmission range indicator.





Coolant Temperature

The temperature gauge is displayed as C (Cold) and H (Hot). There are varying incremental designations between C and H.





Fuel Level

The fuel level gauge is displayed in increments of one-quarter marks displaying F (Full), 1/2 (one half tank) and E (Empty).

INSTRUMENT CLUSTER DIGITAL DISPLAYS





There are five electronic digital displays that show cumulative odometer, trip odometer, time, outside ambient air temperature, and, if equipped, automatic transmission range or gear.

Speedometer

The two digital displays integrated in the speedometer will display the odometer reading, and the trip odometer. The trip odometer (1) can be reset at anytime. The odometer (1) display also shows the distance remaining to the next regular maintenance service as calculated by the FSS. Pressing the control dial to the left (3) of the speedometer resets the trip odometer. One press is used if the ignition switch is in the "RUN" position, two presses with the ignition switch in other positions or with the key removed. The trip and cumulative odometer displays are also used to indicate engine oil level.





Tachometer

The two digital displays integrated in the tachometer will display the transmission range selection, and the current time. The transmission display shows P, R, N or D under normal driving conditions. The clock will display in 12 hour increments. The control dial located between the tachometer and the speedometer resets the digital clock.





Engine Coolant Temperature/Fuel Level Gauge

The one digital display integrated in the Coolant Temperature/Fuel Level Gauge will display the outside air temperature. The outside ambient air temperature digital display adapts to outside ambient air temperature in steps depending on the following driving conditions; stop and go traffic, constant speed driving, and the level of temperature change. During idling or slow driving, the temperature reading may be affected by road or engine heat because the sensor is located in the lower portion of the front fascia. The outside ambient air temperature sensor is not a scientific weather tool for calculating the exact outside temperature. The outside ambient air temperature sensor does not take into account the relative humidity or the current wind chill. Therefore, there may be a difference in temperature readings and actual current outside temperatures.

WARNING INDICATORS

There are eighteen indicator lamps that warn of malfunctions or vehicle components and operating conditions that need attention. The indicator lamps are grouped together in two windows, one to the left of the Temperature/Fuel gauge and the other to the right of the Tachometer. All of the indicator lamps illuminate each time the engine is started to verify system operation and to perform an Instrument Cluster bulb check. The following eighteen indicators are present:

WARNING: On vehicles equipped with airbags, disable the supplemental restraint system before attempting any steering wheel, steering column, driver airbag, passenger airbag, seat belt tensioner, front impact sensors, side curtain airbag, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the supplemental restraint system. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury.





Airbag Warning Indicator Lamp (SRS)

The Airbag warning indicator lamp illuminates if there is a malfunction in the Supplemental Restraint System (SRS). During its bulb check, the Airbag warning indicator lamp stays illuminated for approximately six seconds, then goes out. If the Airbag warning indicator lamp fails to perform a bulb check or stays illuminated, there may be a malfunction in the SRS and should be checked using the DRB III(R) for any DTCs that may be present.





Antilock Warning Indicator Lamp (ABS)

The Antilock warning indicator lamp illuminates if there is a malfunction in the ABS. If the Antilock warning indicator lamp stays illuminated after the bulb check or any service performed, it should be checked using the DRB III(R) for any DTCs that may be present. If the Antilock warning indicator lamp is illuminated, the brake system will operate as if it did not have ABS.





Battery Voltage Indicator Lamp

The Battery voltage indicator lamp illuminates when the charging system falls below current demand causing the battery to not receive a full charge during operation.





Brake Assist System Indicator Lamp (BAS), Electronic Stability Program (ESP)

The BAS/ESP indicator lamp illuminates if there is a malfunction in the BAS/ESP. If the BAS/ESP indicator lamp illuminates at any time during or after any service is performed it should be checked using the DRB III(R) to verify any DTCs that may be present.





Brake Warning Indicator Lamp

The Brake warning indicator lamp illuminates when the brake fluid in the brake fluid reservoir drops below the minimum level indicated on the side of the brake fluid reservoir.





Brake Wear Indicator Lamp

The Brake wear indicator lamp illuminates when the front brake pads are worn and require replacement.





Electronic Stability Program Indicator Lamp (ESP)

The Electronic Stability Program indicator lamp (1) located between the left and right turn signal indicators illuminates when the ESP system is deactivated. ESP deactivation is performed by depressing the ESP button, located on the center console. The ESP indicator lamp will also flash if the system is activated and there is a lose of traction. When the Electronic Stability Program is activated, the ESP indicator lamp will remain off until the system senses a lose of tractional stability. At that time, the ESP indicator lamp will flash to warn the driver of compensations being made by the ESP system.





High Beam Indicator Lamp

The High beam indicator lamp illuminates when the high beam lamps are activated by the multifunction switch located in the steering column.





Lamp Outage Indicator Lamp

The Lamp outage indicator lamp illuminates if there is an exterior lamp failure such as a headlamp or taillamp failure.





Low Coolant Indicator Lamp

The Low coolant indicator lamp illuminates if the engine coolant drops below its threshold indicating a low engine coolant level.





Low Fuel Warning Lamp

The Low fuel warning lamp, located on the left side of the cluster, illuminates when the fuel level in the fuel tank reaches approximately 8 liters (2.1 gallons) to indicate a low fuel level.





Low Tire Pressure Indicator Lamp

The Low tire pressure indicator lamp illuminates if any tire should experience a drop in pressure, or if a tire is over inflated above the recommended pressure.





Low Washer Fluid Indicator Lamp

The Low washer fluid indicator lamp illuminates to indicate a low windshield washer fluid level.





Malfunction Indicator Lamp (MIL)

The Malfunction Indicator Lamp illuminates when there is a malfunction or DTC present in the Powertrain Control Module (PCM) or Transmission Control Module (TCM).





Oil Level Indicator Lamp

The Oil level indicator lamp illuminates if the engine oil drops below 4.25 liters (4.5 quarts), indicating that the engine oil has dropped by 1.9 liters (2 quarts).





Seat Belt Indicator Lamp

The Seat belt indicator lamp illuminates if the driver's seat belt is not buckled.





Telescoping Wheel Indicator Lamp

The Telescoping wheel indicator lamp illuminates if the manually telescoping wheel is not locked into position.





Turn Signal Indicator Lamp

The Turn signal indicator lamps (1), located in the upper portion of the speedometer on the right and left of the ESP indicator, illuminate when either the right or left turn signal is activated by the multifunction switch on the steering column. Both lamps will illuminate when the Emergency Flasher switch has been activated.

INSTRUMENT CLUSTER CHIME FUNCTION

The Instrument Cluster generates audible tones through its chime function in order to notify the driver of specific vehicle conditions. The following are conditions that will trigger the chime function to operate:

- Turn signal indicator

Activating the turn signal switch is indicated audibly by the turn signal indicator ticking. The driver's attention is brought to a problem in the turn signal system by the turn signal indicator ticking at a higher frequency. The turn signal indicator ticking is generated electromagnetically. The frequency corresponds to that of the turn signal indicator lamp.

- Parking Brake-on reminder

The chime is activated whenever the cluster detects the parking brake is applied at a speed of 5 km/h (3 MPH) or more.

- Headlamps-on reminder

The chime is activated whenever the cluster detects that the headlamp switch is in the ON position with the ignition key removed from the ignition, and the driver's door is open.

- Key-in-ignition reminder

The chime is activated whenever the cluster detects that the key is in the ignition and the driver's door is open.

NOTE: With the key removed and the door open, the chime sounds if the headlamps or parking lamps are on. The operation of the standing lamps, which are intended for use when the vehicle is unoccupied, will not trigger this warning.

HARD WIRE ACTUATED INDICATOR LAMPS AND AUDIBLE TONES

- Left and Right turn signals - from the Illumination Control Module.
- Brake warning indicator lamp - from the brake fluid level switch.
- Low washer fluid indicator lamp - from a single line to the Instrument Cluster and is voltage-encoded.
- Low coolant indicator lamp - from a single line to the Instrument Cluster and is voltage-encoded.
- Low fuel warning lamp - from the Instrument Cluster. The lamp illuminates whenever the fuel level drops to 8 liters (2.1 gallons) The lamp extinguishes after refueling is detected. If fuel is added with the ignition key in the ON position, refueling is detected only after 7.9 liters (2 gallons) or more of fuel is added.
- Lamp outage indicator lamp - from the Illumination Control Module.
- Airbag warning lamp - from the Occupant Restraint Controller (ORC).

CAN DATA BUS ACTUATED INDICATOR LAMPS AND AUDIBLE TONES

- Brake wear indicator lamp - from the CAB.
- Oil level indicator lamp - from the PCM.
- Antilock warning indicator lamp (ABS) - from the CAB.
- Malfunction Indicator Lamp (MIL) - from the PCM.
- Electronic Stability Program (ESP) indicator lamp - from the CAB. The lamp is illuminated if there is a fault in the ESP system or whenever the system is making compensations for driving conditions.

CAN DATA BUS ACTUATED INSTRUMENTS





- Odometer (1), the input is transmitted by the Controller Antilock Brake (CAB) and is determined using input from the four wheel speed sensors.
- Speedometer, the input is transmitted by the Controller Antilock Brake (CAB) and is determined using input from the four wheel speed sensors. The individual wheel speeds are compared and checked for logic. If significant differences in individual speed signals are recognized, the speed is determined from the speed of one of the front wheels. If the speed signals differ significantly, it may be due to wheel spin, cornering, or a defective speed sensor. If the computer identifies by means of sensor comparisons (comparison of each side) that the vehicle is cornering, the speed is determined from the value of the front wheel speeds. If the comparisons indicate one or more different wheel speeds, the vehicle speed is determined from the highest wheel speed. This also applies if a fault indication is received instead of a wheel speed signal. In this case, an error bit is also set. If any fault indications are received for all wheel speeds, the speed displayed is "0".





- Tachometer, the engine speed signal is transmitted by the PCM and determined from the crankshaft position sensor signal.

APPEARANCE AND LIGHTING

Black instrument faces have a blue-green backlighting when the exterior lamps are on. Digital displays also have a blue-green backlighting. A control dial to the left of the speedometer adjusts the lamp intensity. Digital displays activate when a door is opened, when the ignition switch is in the ON/RUN position, or by pressing the lamp intensity adjustment knob when the ignition is off.

CONTROL BUTTONS





The Instrument Cluster has two control dials which are to the left and right of the speedometer face.

- The right control dial (2) is used to adjust the time. Refer to the Owner's Manual.
- The left control dial (3) is used to regulate the instrument illumination, activate the display illumination, reset the trip odometer display, and operate the FSS maintenance display.

OUTSIDE AMBIENT AIR TEMPERATURE





The following is required to display the outside ambient air temperature:

- Outside air temperature
- Wheel speed signal
- Engine run time
- Engine coolant temperature

The outside ambient air temperature is determined by the outside ambient air temperature sensor. The temperature sensor is installed at the front left of the vehicle under the bumper fascia and is connected to the Instrument Cluster. The wheel speed signal, engine run time, and engine coolant temperature are determined internally by the Instrument Cluster. Since the outside ambient air temperature display depends on the wheel speed, engine run time, and engine coolant temperature, the temperatures are not updated when the vehicle is stationary or moving slowly.

The following is the vehicle criteria necessary for determining outside air temperature:

- When the ignition is in the ON position and the engine coolant temperature < 60° C (140° F), the current air temperature is always stored and displayed.
- When the ignition is in the OFF position and the engine coolant temperature < 60° C (140° F), the air temperature last measured is stored and displayed.
- When the ignition is in the ON position and the engine coolant temperature < 60° C (140° F), the stored air temperature is displayed.
- At vehicle speeds of 19-60 km/h (12-37 MPH), outside air temperatures are displayed after a delay of approximately 5 minutes.
- At vehicle speeds over 60 km/h (37 MPH), outside air temperatures are displayed after a delay of approximately 2 minutes.

FLEXIBLE SERVICE SYSTEM (FSS) MAINTENANCE INDICATOR





The FSS maintenance indicator informs the driver when maintenance is due. The FSS maintenance indicator operates based on distance traveled and time between service criteria. After exceeding a total distance or total time set at the factory, the FSS maintenance indicator activates: The tool symbol (2) comes on and the FSS maintenance information (1) is displayed instead of the total mileage. The FSS maintenance indicator obtains its time information from the digital clock integrated into the Instrument Cluster. The odometer signal calculated in the Instrument Cluster is used for the mileage information. For this purpose, the Instrument Cluster receives four wheel speed signals from the CAB via the CAN data bus. (Speedometer, Odometer and the FSS maintenance indicator are therefore, closely interrelated).

The remaining mileage is compared with the remaining time at key-on. When the time criterion has reached the priority level, the display (1) switches to the remaining time. The remaining mileage display (1) will be displayed automatically with the ignition switch in the "RUN" position after 5 seconds or while driving after reaching the warning threshold. The tool symbol (2) and the current remaining mileage (1) appear for 10 seconds, then automatically with the ignition switch in the "RUN" position after 5 seconds or while driving when the remaining mileage (1) has been exceeded. In this case, the display (1-2) flashes and the "remaining mileage" (1) is indicated with a negative sign (minus sign). After reaching the display overrun at -99,000 km (or -99,000 miles), the display (1) will remain at this value.

The remaining mileage (1) is displayed to a resolution of 100 km (or 100 miles). Normally, the remaining mileage is always displayed. However, to ensure that "occasional drivers" are also made aware when FSS maintenance service is due, the mileage (1) and time information are always processed in the background. The data remains stored even in the event of a system voltage failure.

The time remaining until the next FSS maintenance service is calculated starting with the total time set at the factory. The total time means the time specified between two FSS maintenance intervals. The remaining time means the time remaining until the next FSS maintenance service is due. The remaining time is strictly a time criterion. The remaining time is reduced by one day each day regardless of the mileage. The tool symbol (2), the current remaining time (1), and "D" for days will appear for 10 seconds and automatically with the ignition switch in the "RUN" position after 5 seconds or while driving when the remaining time (1) has exceeded the time threshold. In this case, the display flashes and the "remaining time" is indicated with a negative sign (minus sign). After reaching the display overrun at -730 days, the display remains at this value. The display has a resolution of 1 day.

ACKNOWLEDGING THE FSS MAINTENANCE INDICATOR





The display of the remaining mileage (1) as well as the remaining time (1) can be acknowledged and canceled by pressing the left control dial (3) on the Instrument Cluster for at least one second. It makes no difference what caused the information to be displayed.