Toyota Yaris: Meter / Gauge System / Steering Pad Switch Circuit

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System / Steering Pad Switch Circuit

DESCRIPTION

The combination meter assembly and steering pad switch assembly are connected via direct line. The multi-information display in the combination meter assembly are operated using the switches of the steering pad switch assembly.

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.

PROCEDURE

1.	INSPECT STEERING PAD SWITCH ASSEMBLY

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REPLACE STEERING PAD SWITCH ASSEMBLY

2.	INSPECT SPIRAL CABLE SUB-ASSEMBLY

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REPLACE SPIRAL CABLE SUB-ASSEMBLY

3.	CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY)

(a) Disconnect the H60 spiral cable sub-assembly connector.

(b) Disconnect the H6 combination meter assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
H60-10 (+DP2) - H6-15 (MSTI)	Always	Below 1 Ω
H60-11 (+DP) -H6-32 (MSM+)	Always	Below 1 Ω
H60-4(EAU) - Body ground	Always	Below 1 Ω
H60-10 (+DP2) or H6-15 (MSTI) - Body ground	Always	10 kΩ or higher
H60-11 (+DP) or H6-32 (MSM+) - Body ground	Always	10 kΩ or higher

REPLACE COMBINATION METER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

Meter Illumination does not Dim at Night

DESCRIPTION In this circuit, the combination meter assembly receives auto dimmer signals from the main body ECU (multiplex network body ECU) via CAN communication...

Speed Signal Circuit

DESCRIPTION HINT: This circuit is used for the systems connected to terminal +S. This signal is not used for combination meter assembly operation. Combination meter assembly components such as the speedometer operate using data received via CAN communication...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Diagnostic Trouble Code Chart

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Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987)

DESCRIPTION The AWD ECU assembly receives signals from the ECM, steering sensor and skid control ECU (brake actuator assembly) via CAN communication. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory U010087 Lost Communication with ECM/PCM "A" Missing Message When the ignition switch is ON, the IG1 terminal voltage is 10 V or more and the vehicle speed is 60 km/h (37 mph) or more, signals cannot be received from the ECM for 1 second or more CAN communication system AWD ECU assembly ECM Displayed Yes U012687 Lost Communication with Steering Angle Sensor Module Missing Message When the following continues: When the IG1 terminal voltage is 10 V or more, communication with the steering sensor is impossible for 1 second or more When the IG1 terminal voltage is 10 V or more, a condition in which communication with the steering sensor is impossible occurs 1 time or more within a 5-second period, and this occurs 10 times within 60 seconds CAN communication system AWD ECU assembly Steering sensor Displayed Yes U012987 Lost Communication with Brake System Control Module Missing Message When the IG1 terminal voltage is 10 V or more, communication with the skid control ECU (brake actuator assembly) is impossible for 3 seconds or more CAN communication system AWD ECU assembly Skid control ECU (Brake actuator assembly) Displayed Yes PROCEDURE 1...