Instrument Panel, Gauges and Warning Indicators: Description and Operation
METERS AND GAUGESSystem Description
UNIFIED CONTROL METER
- Speedometer, odo/trip meter, tachometer (if equipped), fuel gauge and water temperature gauge are controlled by the unified meter control unit built-in combination meter.
- Digital meter is adopted for odo/trip meter.*
*The record of the odometer is kept even if the battery cable is disconnected. The record of the trip meter is erased when the battery cable is disconnected.
- Odo/trip meter segment can be checked in diagnosis mode.
- Meter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER (WITHOUT TRIP COMPUTER)
NOTE: Turn ignition switch to the ON position to operate odo/trip meter.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER (WITH TRIP COMPUTER)
NOTE: Turn ignition switch to the ON position to operate odo/trip meter.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times:
- through 10 A fuse [No. 12, located in the fuse block (J/B)]
- to combination meter terminal 25 (without tachometer), or 42 (QG18DE with tachometer), or 13 (QR25DE).
With the ignition switch in the ON or START position, power is supplied:
- through 10 A fuse [No. 30, located in the fuse block (J/B)]
- to combination meter terminal 26 and 20 (without tachometer), or 41 and 6 (QG18DE with tachometer), or 14 and 7 (QR25DE).
Ground is supplied:
- to combination meter terminal 27 (without tachometer), or 48 (QG18DE with tachometer), or 12 (QR25DE)
- through body grounds M28 and M54.
- to combination meter terminal 31 (without tachometer), or 45 (QG18DE with tachometer), or 8 (QR25DE)
- through body grounds B19 and B13.
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature.
ECM provides a water temperature signal to combination meter for water temperature gauge with CAN communication line.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
ECM provides an engine speed signal to combination meter for tachometer with CAN communication line.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by a variable ground signal supplied:
- to combination meter terminal 30 (without tachometer), or 44 (QG18DE with tachometer), or 21 (QR25DE) for the fuel gauge
- from terminal 2 of the fuel level sensor unit and fuel pump
- through terminal 5 of the fuel level sensor unit and fuel pump, and
- through body grounds B19 and B13.
SPEEDOMETER
The combination meter receives a voltage signal from the vehicle speed sensor for the speedometer.
The voltage is supplied:
- to combination meter terminal 29 (without tachometer), or 47 (QG18DE with tachometer), or 17 (QR25DE) for the speedometer
- from terminal 1 (with QG18DE), or terminal + (with QR25DE) of the vehicle speed sensor.
The speedometer converts the voltage into the vehicle speed displayed.
CAN Communication System Description
Refer to LAN-14, Information Bus. Information Bus