Toyota CH-R Service Manual: Illumination Circuit

Toyota CH-R Service Manual / Audio / Video / Audio And Visual System(for Radio And Display Type) / Illumination Circuit

DESCRIPTION

Power is supplied to the radio and display receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.
Click here
Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.	CHECK ILLUMINATION

(a) Check if the illumination for the radio and display receiver assembly, steering pad switch assembly, heater control switch or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the head or tail position.

Result	Proceed to
Illumination comes on for all components except steering pad switch assembly.	A
Illumination comes on for all components except radio and display receiver assembly.	B
No illumination comes on (radio and display receiver assembly, hazard switch, heater control switch, etc.).	C

GO TO STEP 5

GO TO LIGHTING SYSTEM

2.	CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

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

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
F29-13 (IL+2) - Body ground	Light control switch in tail or head position	11 to 14 V

*a	Front view of wire harness connector (to Spiral Cable with Sensor Sub-assembly)

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.	INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Remove the steering pad switch assembly.

Click here

(b) Inspect the steering pad switch assembly.

Click here

OK:

The steering pad switch assembly illumination illuminates.

REPLACE STEERING PAD SWITCH ASSEMBLY

4.	INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

(a) Remove the spiral cable with sensor sub-assembly.

Click here

(b) Inspect the spiral cable with sensor sub-assembly.

Click here

NOTICE:

Press and hold the lock located in the center of the spiral cable with sensor sub-assembly to rotate the spiral cable with sensor sub-assembly.
The spiral cable with sensor sub-assembly is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable with sensor sub-assembly may prevent the airbag from deploying.
As the spiral cable with sensor sub-assembly may break, do not rotate the spiral cable with sensor sub-assembly more than the specified amount.

REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY OR BODY GROUND)

REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

5.	CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

(a) Disconnect the radio and display receiver assembly connector.

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
F131-15 (ILL+) - Body ground	Light control switch in tail or head position	11 to 14 V

*a	Front view of wire harness connector (to Radio and Display Receiver Assembly)

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

Steering Pad Switch Circuit

DESCRIPTION This circuit sends an operation signal from the steering pad switch assembly to the radio and display receiver assembly. If there is an open in the circuit, the audio system cannot be ...

Parking Brake Switch Circuit

DESCRIPTION This circuit is from the skid control ECU (brake actuator assembly) to the radio and display receiver assembly. WIRING DIAGRAM PROCEDURE 1. CHECK ELECTRIC PA ...

Other materials:

Toyota CH-R Service Manual > Blower Unit(for Denso Made): Installation
INSTALLATION PROCEDURE 1. INSTALL BLOWER ASSEMBLY (a) Engage the guides to install the air conditioning radiator assembly. (b) Install the 2 screws. (c) Engage the guides. (d) ...

Toyota CH-R Owners Manual > Side doors: Unlocking and locking the doors from the inside
Door lock switches Locks all the doors Unlocks all the doors Inside lock buttons Locks the door Unlocks the door The front doors can be opened by pulling the inside handle even if the lock buttons are in the lock position. Locking the doors from the outside without a key ...