Toyota Yaris: Meter / Gauge System / Entire Combination Meter does not Operate
DESCRIPTION
This circuit is the power source circuit for the combination meter assembly. This circuit provides two types of power sources; one is a constant power source, and the other is an IG power source.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
- Inspect the fuses of circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Disconnect the H6 combination meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| H6-19 (EP) - Body ground | Always | Below 1 Ω |
| H6-23 (ES) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| H6-38 (IG+) - Body ground | Ignition switch off | Below 1 V |
| Ignition switch ON | 10.5 to 16 V | |
| H6-22 (B) - Body ground | Ignition switch off | 11 to 14 V |
| OK |
 | REPLACE COMBINATION METER ASSEMBLY |
| NG |
 | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Lost Communication With ECM/PCM "A" Missing Message (U010087,U011487,U012987,U013187,U014087,U015187,U016887,U023587,U023A87,U111287,U113387)
DESCRIPTION The combination meter assembly communicates with each ECU via CAN communication. DTC No. Detection Item DTC Detection Condition Trouble Area U010087 Lost Communication With ECM/PCM "A" Missing Message Diagnosis Condition:
The ignition switch is ON
IG power source voltage is 9...
Speedometer Malfunction
DESCRIPTION The combination meter assembly receives vehicle speed signals from the skid control ECU (brake actuator assembly) via CAN communication. The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU (brake actuator assembly)...
Other information:
Toyota Yaris XP210 (2020-2026) Owner's Manual: Speedometer, Odometer, Trip Meter and Trip Meter Selector
Speedometer The speedometer indicates the speed of the vehicle. If a few seconds have elapsed after switching the ignition off, the needle may deviate. However, this does not indicate a problem. Odometer, Trip Meter and Trip Meter Selector The display mode can be changed from odometer to trip meter A to trip meter B and then back to odometer by pressing the selector while one of them is displayed...
Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Vehicle Control History
VEHICLE CONTROL HISTORY FUNCTION OVERVIEW (a) The vehicle control history is a function that records control data (record data) when triggered by specific vehicle behavior or user input. Checking the vehicle control history may provide, quantitative diagnostic information that can be used as a reference to proceed with a malfunction diagnosis...
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Fuel Gauge
The fuel gauge shows approximately how much fuel is remaining in the tank when the ignition is switched ON. We recommend keeping the tank over 1/4 full.
