Toyota CH-R Service Manual: Engine Switch Illumination Circuit

Toyota CH-R Service Manual / Lighting (int) / Lighting System / Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine 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 TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Body Electrical / Smart Key / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > Smart Key > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Power/Engine SW Light	Engine switch illumination	OFF or ON	When performing this Active Test, make sure the following condition is met: The engine switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the engine switch is on (ACC) or on (IG), or the engine is running.

Tester Display

Measurement Item

Control Range

Diagnostic Note

Power/Engine SW Light

Engine switch illumination

OFF or ON

When performing this Active Test, make sure the following condition is met:

The engine switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the engine switch is on (ACC) or on (IG), or the engine is running.

Body Electrical > Smart Key > Active Test

Tester Display
Power/Engine SW Light

OK:

Engine switch illumination comes on.

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

2.	INSPECT ENGINE SWITCH

(a) Remove the engine switch.

Click here

(b) Inspect the engine switch.

Click here

OK:

Engine switch illumination is normal.

REPLACE ENGINE SWITCH

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

(a) Disconnect the F1 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
F59-9 (SWIL) - F1-10 (SWIL)	Always	Below 1 Ω
F59-6 (AGND) - F1-11 (AGND)	Always	Below 1 Ω
F59-9 (SWIL) or F1-10 (SWIL) - Body ground	Always	10 kΩ or higher
F59-6 (AGND) or F1-11 (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 ambient illumination lights. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the lights for circuits rel ...

Door Unlock Detection Switch Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) detects the condition of each door unlock detection switch. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the main ...

Other materials:

Toyota CH-R Service Manual > Rear Combination Light Assembly(for Bulb Type): Reassembly
REASSEMBLY CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. INSTALL REAR COMBINATION LIGHT SOCKET AND WIRE (a) Connect the connector. ...

Toyota CH-R Service Manual > Rear Seat Outer Belt Assembly: Disposal
DISPOSAL CAUTION / NOTICE / HINT CAUTION: Before performing pre-disposal deployment of any SRS part, review and closely follow all applicable environmental and hazardous material regulations. Pre-disposal deployment may be considered hazardous material treatment. PROCEDURE 1. PRECAUTION ...

Toyota CH-R Service Manual: Engine Switch Illumination Circuit

Ambient Illumination Light Circuit

Door Unlock Detection Switch Circuit

Other materials:

Toyota C-HR (AX20) 2023-2026 Owner's Manual

Toyota CH-R Owners Manual

Toyota CH-R Service Manual