Toyota Yaris: Meter / Gauge System / Terminals Of Ecu

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System / Terminals Of Ecu

TERMINALS OF ECU

COMBINATION METER ASSEMBLY

(a) Measure the voltage and resistance and check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
H6-1 (B) - Body ground	Auxiliary battery	Ignition switch off	11 to 14 V
H6-9 (CANH)	CAN communication line	-	-
H6-10 (MSCL)	Local bus communication line	-	-
H6-11 (TX1-) - Body ground	Outside temperature sensor signal	-	-
H6-13 (FR2) - H6-24 (FE&B)	Fuel level signal	Ignition switch ON, fuel level full → low (fuel level warning light on)	Pulse generation (See waveform 3)
H6-14 (FV) - Body ground	Fuel sender gauge (Power source)	Ignition switch ON	Pulse generation (See waveform 1)
H6-15 (MSTI) - Body ground	Steering pad switch signal	Ignition switch ON, up, down, right and left switches on steering pad switch not pushed	4.8 to 5.2 V
H6-16 (TX1+) - Body ground	Outside temperature sensor signal	-	-
H6-19 (EP) - Body ground	Ground	Always	Below 1 Ω
H6-20 (SI) - Body ground	Speed signal for other system (Input)	Ignition switch ON, wheel being rotated	Pulse generation (See waveform 2)
H6-22 (B) - Body ground	Auxiliary battery	Ignition switch off	11 to 14 V
H6-23 (ES) - Body ground	Ground	Always	Below 1 Ω
H6-24 (FE&B) -Body ground	Fuel sender gauge (Ground)	Always	Below 1 Ω
H6-25 (CANL)	CAN communication line	-	-
H6-27 (MSCH)	Local bus communication line	-	-
H6-31 (FR) - H6-24 (FE&B)	Fuel level signal	Ignition switch ON, fuel level full → low (fuel level warning light on)	Pulse generation (See waveform 3)
H6-32 (MSM+) - Body ground	Steering pad switch signal	Ignition switch On, OK and back switches on steering pad switch not pushed	4.8 to 5.2 V
H6-36 (+S) - Body ground	Speed signal for other systems (Output)	Ignition switch ON, wheel being rotated	Pulse generation (See waveform 2)
H6-38 (IG+) - Body ground	Ignition switch signal	Ignition switch off	Below 1 V
H6-38 (IG+) - Body ground	Ignition switch signal	Ignition switch ON	10.5 to 16 V
H7-1 (LL) - Body ground	LH turn signal	LH turn indicator light off → blinking	Below 1 V → 11 to 14 V ←→ Below 1 V
H7-2 (LR) - Body ground	RH turn signal	RH turn indicator light off → blinking	Below 1 V → 11 to 14 V ←→ Below 1 V
H7-5 (TRNL) - Body ground	LH turn signal	LH turn indicator light off → blinking	Below 1 V → 11 to 14 V ←→ Below 1 V
H7-6 (TRNR) - Body ground	RH turn signal	RH turn indicator light off → blinking	Below 1 V → 11 to 14 V ←→ Below 1 V
H7-7 (LP) - Body ground	Security indicator signal	Security indicator light off → blinking	Below 2 V → Pulse generation
H7-16 (SW) - Body ground	Brake fluid level signal	Ignition switch ON, brake fluid level not low (brake warning light off) → low (brake warning light on)	11 to 14 V → Below 1 V
H7-17 (HAZ) - Body ground	Hazard warning signal switch signal	Hazard warning signal switch off → on	11 to 14 V → Below 1 V
H7-31 (OILW) - Body ground	Ground	Always	Below 1 Ω
H7-34 (BKL) - Body ground	Driver seat belt warning signal	Ignition switch ON, front passenger seat belt unfastened → fastened	Below 1 V → 11 to 14 V

Waveform 1:

Item

Condition

Tester connection

H6-14 (FV) - Body ground

Tool setting

2.5 V/DIV., 20 ms./DIV.

Condition

Ignition switch ON

Specified Condition

4.5 to 5.5 V

Item	Condition
Tester connection	H6-14 (FV) - Body ground
Tool setting	2.5 V/DIV., 20 ms./DIV.
Condition	Ignition switch ON
Specified Condition	4.5 to 5.5 V

Waveform 2:

Item	Condition
Tester connection	H6-20 (SI) - Body ground H6-36 (+S) - Body ground
Tool setting	5 V/DIV., 20 ms./DIV.
Condition	Ignition switch ON, wheel being rotated

HINT:

When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.

Waveform 3:

Item	Condition
Tester connection	H6-31 (FR) - H6-24 (FE&B) H6-13(FR2) - H6-24 (FE&B)
Tool setting	2.5 V/DIV., 20 ms./DIV.
Condition	Ignition switch ON, fuel level full → low (fuel level warning light on)

HINT:

The magnitude of the voltage (A) changes as shown in the following tables.

Condition	Voltage
Condition	H6-31 (FR) - H6-24 (FE&B)	H6-13(FR2) - H6-24 (FE&B)
Ignition switch ON, fuel level full	4.2 to 4.6 V	3.7 to 4.6 V
Ignition switch ON, fuel level 1/2	4.2 to 4.6 V	0.5 to 0.9 V
Ignition switch ON, fuel level low (fuel level warning light on)	0.3 to 2.2 V	0.5 to 0.9 V

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE 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...

Dtc Check / Clear

D..

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Camshaft Position Sensor "B" Bank 1 Signal Stuck in Range (P03652A,P036531)

DESCRIPTION Refer to DTC P036511. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note P03652A Camshaft Position Sensor "B" Bank 1 Signal Stuck in Range No camshaft position sensor (for exhaust camshaft) signal to ECM while engine cranking (1 trip detection logic)...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Charge Air Cooler Temperature Sensor 2 Bank 1 Circuit Short to Ground (P10D311)

DESCRIPTION The intake air temperature sensor, built into the No. 1 turbo pressure sensor, monitors the intake air temperature. The intake air temperature sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air...