NAVIGATION SYSTEM (for Radio and Display Type) Reverse Signal Circuit

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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.

• *1: for Automatic Transmission

• *2: for Manual Transmission

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INSPECTION PROCEDURE

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PROCEDURE

1. Click here

   CHECK VEHICLE SIGNAL (OPERATION CHECK)

   
   
   1. 

      Enter the "Vehicle Signal Check Mode" screen. [Refer to check Vehicle Signal in Operation Check (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

      Tip:

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

   
   
   • OKClick here
   • NGClick here
2. Click here

   CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

   
   
   1. 

      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 Switch Condition Specified Condition H51-2 (REV) - Body ground Engine switch on (IG), shift lever in R 7.5 to 14 V H51-2 (REV) - Body ground Engine switch on (IG), shift lever not in R Below 1 V

      Table 1. Text in Illustration

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

      Table 2. Result

      Result	Proceed to
      OK	A
      NG (for Automatic Transmission)	B
      NG (for Manual Transmission)	C

   
   
   • AClick here
   • BClick here
   • CClick here
3. Click here

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

   
   

   1. Disconnect the H51 radio and display receiver assembly connector.

   2. Disconnect the C40 park/neutral position switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition H51-2 (REV) - C40-1 (RL) Always Below 1 Ω H51-2 (REV) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
4. Click here

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

   
   
   1. 

      Disconnect the park/neutral position switch assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition C40-2 (RB) - Body ground Engine switch on (IG) 11 to 14 V

      Table 3. Text in Illustration

      *a	Front view of wire harness connector (to Park/neutral Position Switch Assembly)

   
   
   • OKClick here
   • NGClick here
5. Click here

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

   
   

   1. Disconnect the H51 radio and display receiver assembly connector.

   2. Disconnect the C41 back-up light switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition H51-2 (REV) - C41-1 Always Below 1 Ω H51-2 (REV) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
6. Click here

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

   
   
   1. 

      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 C41-2 - Body ground Engine switch on (IG) 11 to 14 V

      Table 4. Text in Illustration

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

   
   
   • OKClick here
   • NGClick here
7. Click here

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

8. Click here

   REPAIR OR REPLACE HARNESS OR CONNECTOR

9. Click here

   REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLYClick here

10. Click here

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLYClick here

11. Click here

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLYClick here