Toyota Yaris: Lighting System / Push Start Switch Illumination Circuit

Toyota Yaris XP210 (2020-2024) 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.

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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.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT PUSH START SWITCH

Click here

NG

REPLACE PUSH START SWITCH

OK

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

OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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