AUDIO AND VISUAL SYSTEM(w/o Parking Assist Monitor System) Illumination Circuit

DESCRIPTION

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

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   CHECK ILLUMINATION

   
   

   1. Check if the illumination for the radio 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
      Result Proceed to Illumination comes on for all components except steering pad switch assembly. A Illumination comes on for all components except radio receiver assembly. B Illumination comes on only for steering pad switch assembly. C No illumination comes on (radio receiver assembly, hazard switch, heater control switch, etc.). D

   
   
   • AClick here
   • BClick here
   • C

     GO TO METER / GAUGE SYSTEMClick here

   • D

     GO TO LIGHTING SYSTEMClick here

2. Click here

   CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

   
   

   1. Disconnect the K26 spiral cable with sensor sub-assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition K26-13 (IL+2) - Body ground Power switch off Light control switch in tail or head position 11 to 14 V

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

3. Click here

   INSPECT STEERING PAD SWITCH ASSEMBLY

   
   

   1. Remove the steering pad switch assembly.

      Click here

   2. 

      *a

      Component without harness connected (Steering Pad Switch Assembly)

      -

      -

      Connect an auxiliary battery positive (+) lead to terminal 5 (IL+2) and a negative (-) lead to terminal 8 (EAU) of the steering pad switch assembly connector.

   3. Check if the illumination for the steering pad switch assembly comes on.

      OK
      Illumination for the steering pad switch assembly comes on.

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPLACE STEERING PAD SWITCH ASSEMBLYClick here

4. Click here

   INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

   
   

   1. Remove the spiral cable with sensor sub-assembly.

      Click here

   2. 

      *a	Component without harness connected (Spiral Cable with Sensor Sub-assembly)
      *b	Steering Pad Switch Assembly Side
      *c	Vehicle Side

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

      Standard Resistance
      Tester Connection Condition Specified Condition z4-5 (IL+2) - K26-13 (IL+2) Center 3 Ω or less 2.5 rotations to the left 2.5 rotations to the right z4-8 (EAU) - K26-3 (EAU) Center 3 Ω or less 2.5 rotations to the left 2.5 rotations to the right

   3. After setting the spiral cable with sensor sub-assembly to the center position, rotate the spiral cable with sensor sub-assembly 2.5 times clockwise. Then while rotating the spiral cable with sensor sub-assembly 5 times counterclockwise, measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition z4-5 (IL+2) - K26-13 (IL+2) Always 3 Ω or less z4-8 (EAU) - K26-3 (EAU) Always 3 Ω or less

      Note:
      

      • 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.

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLYClick here

5. Click here

   CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - RADIO RECEIVER ASSEMBLY)

   
   

   1. Disconnect the K72 radio receiver assembly connector.

   2. Disconnect the K26 spiral cable with sensor sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition K72-23 (SWG) - K26-3 (EAU) Always Below 1 Ω

      Result
      Proceed to OK NG

   
   
   • OK

     PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

6. Click here

   CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

   
   

   1. Disconnect the K70 radio receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition K70-10 (ILL+) - Body ground Power switch off Light control switch in tail or head position 11 to 14 V

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

7. Click here

   CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)

   
   

   1. Disconnect the K71 radio receiver assembly connector.

   2. Disconnect the K3 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition K71-5 (ILL-) - K3-39 (ILL-) Always Below 1 Ω K71-5 (ILL-) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   
   • OK

     PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR