Toyota Yaris: Lighting System / Push Start Switch Illumination Circuit

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Vehicle Interior / Lighting (int) / Lighting System / Push Start Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the push start switch illumination.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the certification ECU (smart key ECU assembly), refer to Registration.

Click here

PROCEDURE

1.	PERFORM ACTIVE TEST USING GTS

(a) Perform the Active Test according to the display on the GTS.

Body Electrical > Entry&Start > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Start SW Light Power Supply	Push start switch illumination	OFF or ON	-

Body Electrical > Entry&Start > Active Test

Tester Display
Start SW Light Power Supply

OK:

Push start switch illumination comes on.

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

2.	INSPECT PUSH START SWITCH

Click here

REPLACE PUSH START SWITCH

3.	CHECK HARNESS AND CONNECTOR (PUSH START SWITCH - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

(a) Disconnect the H68 certification ECU (smart key ECU assembly) connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
H68-5 (SWIL) - H46-20 (SWIL)	Always	Below 1 Ω
H68-3 (GND) - H46-30 (AGND)	Always	Below 1 Ω
H68-5 (SWIL) or H46-20 (SWIL) - Body ground	Always	10 kΩ or higher
H68-3 (GND) or H46-30 (AGND) - Body ground	Always	10 kΩ or higher

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

Ambient Illumination Light Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) controls the operation of the following lights: Front Door Ambient Illumination Light Front Door Ambient Illumination Light LH (Front Door Trim Board Sub-assembly LH) Front Door Ambient Illumination Light RH (Front Door Trim Board Sub-assembly RH) WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure...

Instrument Panel Illumination does not Turn On

DESCRIPTION The power distribution box assembly controls the instrument panel illuminations. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Calibration

CALIBRATION POWER STEERING ECU INITIAL SETTING (ASSIST MAP WRITING) (USING GTS) NOTICE: If any of the following conditions are met, perform Power Steering ECU Initial Setting (assist map writing): The power steering ECU assembly has been replaced. The electric power steering column sub-assembly has been replaced...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Disassembly

DISASSEMBLY PROCEDURE 1. REMOVE WIRE HARNESS (a) Remove the 2 nuts and wire harness from the starter assembly. 2. REMOVE STARTER INRUSH CURRENT REDUCTION RELAY (a) Remove the bolt and wire harness from the starter inrush current reduction relay...