Scheme 156
TECHNICAL DESCRIPTION (COMMENT)
If the odometer and tripmeter do not display or all the meter needles do not move, the power supply to the combination meter, or the combination meter itself may have a problem.
If only the speedometer does not operate, the ASC-ECU and combination meter may have a problem.
If only the tachometer does not operate, the ignition signal from the engine ECU may not be received or the combination meter may have a problem.
When the following signals are received via the CAN communication, the combination meter sounds the incorporated tone alarm according to the each pattern.
Seat belt reminder function
- Ignition switch ON signal
- Vehicle speed signal
- Driver's seat belt switch signal
- Front passenger's seat belt switch signal
Keyless operation key reminder tone alarm function (vehicles with KOS)
- Ignition switch OFF signal
- IG knob push switch ON signal
- Driver's door switch ON signal
Ignition key reminder tone alarm function (vehicles without KOS)
- Ignition switch OFF signal
- Key reminder switch OFF signal
- Driver's door switch ON signal
Light reminder tone alarm function
- Ignition switch OFF signal
- Lighting switch ON signal
- Driver's door switch ON signal
Door-ajar warning tone alarm function
- Ignition switch ON signal
- Any door switch or trunk lid latch ON signal
- Vehicle speed signal
Freeze warning tone alarm
- Ignition switch ON signal
- Ambient temperature signal
Parking brake reminder tone alarm function
- Ignition switch ON signal
- Parking brake switch ON signal
- Vehicle speed signal
Multi information display interrupt display tone alarm
- Display condition signal of information display from each warning (When there is a fixed tone alarm sounding pattern for each warning, that pattern has the priority.)
Meter information meter switch operation tone alarm
- ON signal for combination meter information meter switch
Turn-signal light tone alarm function
- Turn-signal light switch ON signal
Paddle shift cancel tone alarm, Theft-alarm function, ETACS-ECU function customize tone alarm, A/C operation tone alarm, audio operation tone alarm
- Sounding request signal from the ETACS-ECU If the tone alarm does not sound normally, the connector(s) and wiring harness in the CAN bus lines, or each ECU or the combination meter may have a problem.
When the signal from each ECU is received via the CAN communication, the combination meter illuminates the corresponding display light or warning light, or has the multi information display to display corresponding information.
If the lights do not illuminate or the multi information display does not display normally, the wiring harness and connector(s) in the CAN bus lines, or the each ECU or the combination meter may have a problem.
Inspection Procedure 6: The Multi Information Display Screen Cannot Be Changed With The Operation Of The Meter Information Meter Switch
| CAUTION | Before replacing the combination meter, be sure to check that the power supply circuit, ground circuit, and communication circuit are normal. |
When the signal from the meter information switch is received, the combination meter switches the multi information display screen. If the multi information display screen does not switch normally, the meter information switch, wiring harness, connector(s), or combination meter may have a problem.
HOW TO SET BY SPECIAL OPERATION OF SWITCH
By operating the meter information switch of the combination meter, the service reminder warning cancellation and the schedule setting can be performed.