AUDIO AND VISUAL SYSTEM(for Radio and Display Type) Reverse Signal Circuit

DESCRIPTION

The radio and display receiver assembly receives a reverse signal from the park/neutral position switch assembly*1 or back-up light switch assembly*2 to use for adjusting the vehicle position on the display.

• *1: except Manual Transaxle

• *2: for Manual Transaxle

WIRING DIAGRAM

PROCEDURE

1. CHECK VEHICLE SIGNAL (OPERATION CHECK)

   
   

   1. 

      Enter the "Function Check/Setting I" mode and select "Vehicle Signal".

      Click here

   2. Check that the display changes between ON and OFF according to the shift lever position.

      OK
      Shift Lever Position Display R ON Except R OFF

      Tech Tips

      This display is updated once per second. As a result, it is normal for the display to lag behind the actual shift lever position.

      Result
      Proceed to OK NG

   
   

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

   NG

2. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (REVERSE SIGNAL)

   
   
   1. 

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

      Disconnect the radio and display receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition G143-2 (REV) - Body ground Ignition switch ON, shift lever in R 11 to 14 V G143-2 (REV) - Body ground Ignition switch ON, shift lever any position other than in R Below 1 V

      Result
      Proceed to OK NG (except Manual Transaxle) NG (for Manual Transaxle)

   
   

   OK

   REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

   NG (for Manual Transaxle)

   CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY) Click here

   NG (except Manual Transaxle)

3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

   
   

   1. Disconnect the G143 radio and display receiver assembly connector.

   2. Disconnect the B36*1 or B101*2 park/neutral position switch assembly connector.

      
      

      • *1: for 3ZR-FAE

      • *2: except 3ZR-FAE

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

      Standard Resistance
      for 3ZR-FAE Tester Connection Condition Specified Condition G143-2 (REV) - B36-2 (RL) Always Below 1 Ω G143-2 (REV) - Body ground Always 10 kΩ or higher
      except 3ZR-FAE Tester Connection Condition Specified Condition G143-2 (REV) - B101-2 (RL) Always Below 1 Ω G143-2 (REV) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

4. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - BATTERY)

   
   
   1. 

      *A	for 3ZR-FAE
      *B	except 3ZR-FAE
      *a	Front view of wire harness connector (to Park/Neutral Position Switch Assembly)

      Disconnect the park/neutral position switch assembly connector.

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

      Standard Voltage
      for 3ZR-FAE Tester Connection Switch Condition Specified Condition B36-1 (RB) - Body ground Ignition switch ON 11 to 14 V
      except 3ZR-FAE Tester Connection Switch Condition Specified Condition B101-1 (RB) - Body ground Ignition switch ON 11 to 14 V

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for K111: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for K111F: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for K114: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for K114F: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for U660F: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for U760E: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for U760F: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

5. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)

   
   

   1. Disconnect the G143 radio and display receiver assembly connector.

   2. Disconnect the B35 back-up light switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition G143-2 (REV) - B35-1 Always Below 1 Ω G143-2 (REV) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

6. CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH ASSEMBLY - BATTERY)

   
   
   1. 

      *a	Front view of wire harness connector (to Back-up Light Switch Assembly)

      Disconnect the back-up light switch assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition B35-2 - Body ground Ignition switch ON 11 to 14 V

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE BACK-UP LIGHT SWITCH ASSEMBLY for EA64: REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here REPLACE BACK-UP LIGHT SWITCH ASSEMBLY for EA64F: REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here REPLACE BACK-UP LIGHT SWITCH ASSEMBLY for EB63: REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here REPLACE BACK-UP LIGHT SWITCH ASSEMBLY for EB63F: REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here REPLACE BACK-UP LIGHT SWITCH ASSEMBLY for EB61: REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here REPLACE BACK-UP LIGHT SWITCH ASSEMBLY for EB61F: REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR