COMBINATION METER

The combination meter features large, clearly visible analogue indicators. The speedometer has been installed to the right side of the combination meter, the tachometer to the left, and the information display to the centre. The combination meter offers the following advantages.

CAN communication is used for more reliable transmission of all gauge data and indicator lamp input signals, such as vehicle speed, engine RPM, and coolant temperature. For further details on CAN, refer to GROUP 54C, CAN .
Several diagnosis functions such as the diagnosis code memory and actuator tests are prepared in order to improve serviceability.
For a brighter display at night and for a longer useful life, all indicator lamps, warning lamps, and illumination bulbs use LEDs.
The indicators for the speedometer, fuel gauge, and other gauges are driven by a stepping motor. For further details, consult the stepping motor section .
The electric speedometer is adopted so that it is operated by vehicle speed signals sent from ABS-ECU <Vehicles without active stability control system> or TCL/ASC-ECU <Vehicles with active stability control system> via CAN communication.
The service reminder function has been adopted which notifies the users of the next periodic inspection timing using the driving distance and elapsed time.
The fuel consumption display function which can display the possible cruising distance, instantaneous fuel consumption, and average fuel consumption or average vehicle speed is adopted.
By pressing the multi-information meter switch, the information display can be switched among the odometer, trip meter (A, B), fuel information, and service reminder information. Also, by pressing the "MODE/SET" switch on the radio with CD player, the display can be switched to the fuel consumption display.

CONSTRUCTION DIAGRAM

FUNCTION

SERVICE REMINDER FUNCTION

When the item comes up the warning start point of warning criteria based on the predetermined schedule, the service reminder indicator on the information display illuminates for 30 seconds. However, even if the illumination condition is met, the indicator does not illuminate immediately. It illuminates next time when the ignition switch is turned ON. To find the inspection timing, press the multi-information meter switch for switching the information display. When the service reminder indicator achieves the warning end point of warning criteria, it will be turned off by the M.U.T.-III special function or the multi-information meter switch special operation^*.

note

The service reminder function is disabled at shipment. When any of the following conditions is met, the function becomes available. When delivering the vehicle to the customer, enable the service reminder function, and check that the schedule is "EU 2".

With the multi-information meter switch being pressed, the ignition switch is turned to the "ON" position.
The reading on the odometer reaches to 100 km or 60 miles.

note

Using the M.U.T.-III special functions or the multi-information meter switch special operation^*, the schedule can be changed and the service reminder function can be made unavailable.

note

^*: For details about the multi-information meter switch special operation, refer to the Workshop Manual.

SCHEDULE TABLE

Schedule	Warning type	Warning criteria
EU 1	Elapsed time (month)	Every 12 elapsed month
	Driving distance (miles)	Every 9,000 miles of driving distance
	Driving distance (km)	Every 15,000 km of driving distance
EU 2 (initial condition)	Elapsed time (month)	Every 12 elapsed month
	Driving distance (miles)	Every 12,500 miles of driving distance
	Driving distance (km)	Every 20,000 km of driving distance
Optional INT	The optional schedule can be set. (Only M.U.T.-III can be set.)
OFF Display	Without function. "OFF" is displayed on the information display.
Function OFF	Without function (Only M.U.T.-III can be set.)

note

For schedule, "JPN", "NAS", "GCC/EXP" and "AUS" can also be selected. However, the using shall be for "EU" only.

WARNING CRITERIA (WARNING START AND END POINTS)

Elapsed time		Driving distance (km)		Driving distance (miles)
Warning start point	Warning end point	Warning start point	Warning end point	Warning start point	Warning end point
-30 days	+30 days	-500 km	+500 km	-500 miles	+500 miles

Fuel consumption display function

By gently pressing the "MODE/SET" switch on the radio with CD player, the fuel consumption information is displayed on the information display. Each gentle pressing of the "MODE/SET" switch with the fuel consumption information displayed, the display shifts in the order of the "possible cruising distance", "instantaneous fuel consumption", "average fuel consumption" or "average vehicle speed."

METER NEEDLE MECHANISM

These gauges use a stepping motor as the drive mechanism for the indicators (called the "movement"). Compared with conventional movements, the torque for driving the indicators is much greater for superior indicator accuracy and more stable response. The indicator position displayed is determined as the microcontroller circuit in the gauge controls the stepping motor. In conventional gauges, the indicator revolves 360° in response to 360° driving controls. However, a stepping motor is designed so that the indicator revolves only 45°, even in response to a drive control of 360°. The 45° drive control must be repeated to make the indicator rotate 360°. Thus, at a position 45° away from the indicator display position, there will be an identical control.
As a result, in the case of a great impact such as from an accident when the indicator becomes misaligned, if the ignition is switched on to start driving while the indicator is misaligned, the indicator will function while misaligned. Thus, to return the indicator to the normal position in case this happens, when the ignition is switched on, the indicator positions are reset to their respective positions after the battery line is connected after it is cut. After the battery line is cut and reconnected, the indicators simply return to the zero position. The same operation is performed after voltage is restored if gauge functions are lost because of a voltage drop from cranking or the like. Furthermore, the indicator only returns 45° after the ignition is switched on or the lock is turned off. The indicator is not moved if it is not misaligned.

DIAGNOSIS CODE TABLE

Diagnosis code No.	Diagnosis item
B1011	Ambient Temperature Sensor Circuit Low
B1012	Ambient Temperature Sensor Circuit High
B1200	Malfunction odometer
B1201	Trouble of fuel information
U1073	Bus Off
U1100	Engine-ECU or engine-A-M/T-ECU time-out (related to engine)
U1101	Engine-A-M/T-ECU time-out (related to automated manual transmission)
U1102	ABS-ECU or TCL/ASC-ECU CAN communication time-out
U1106	Electric power steering-ECU CAN communication time-out
U1109	ETACS-ECU time-out
U1112	SRS-ECU time-out
U1120	Failure information on engine-ECU or engine-A/T-ECU (Related to Engine)
U1121	Failure information on engine-A-M/T-ECU (related to automated manual transmission)
U1122	Failure information on ABS-ECU or TCL/ASC-ECU
U1132	Failure information on SRS-ECU
U1206	Flag invalid