REAR VIEW MONITOR SYSTEM Reverse Signal Circuit

DESCRIPTION

The inner rear view mirror 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

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK INNER REAR VIEW MIRROR ASSEMBLY (REVERSE SIGNAL)

   
   
   1. 

      Text in Illustration

      *a	Rear view of wire harness connector (to Inner Rear View Mirror Assembly)

      Disconnect the inner rear view mirror assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition u1-5 (REV) - Body ground Ignition switch ON, shift lever in R 11 to 14 V Ignition switch ON, shift lever not in R Below 1 V

      Result

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

   
   

   B

   CHECK HARNESS AND CONNECTOR (INNER REAR VIEW MIRROR ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) Click here

   C

   CHECK HARNESS AND CONNECTOR (INNER REAR VIEW MIRROR ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY) Click here

   A

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

2. CHECK HARNESS AND CONNECTOR (INNER REAR VIEW MIRROR ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

   
   

   1. Disconnect the u1 inner rear view mirror assembly connector.

   2. Disconnect the D37 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 u1-5 (REV) - D37-1 (RL) Always Below 1 Ω u1-5 (REV) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

3. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

   
   

   1. Remove the park/neutral position switch assembly.

      
      

      • for A340E: Click here

      • for A343E: Click here

   2. Inspect the park/neutral position switch assembly.

      
      

      • for A340E: Click here

      • for A343E: Click here

      Result

      Result	Proceed to
      OK	A
      NG (for A340E)	B
      NG (for A343E)	C

   
   

   B

   REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

   C

   REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

   A

   REPLACE INNER REAR VIEW MIRROR ASSEMBLY Click here

4. CHECK HARNESS AND CONNECTOR (INNER REAR VIEW MIRROR ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)

   
   

   1. Disconnect the u1 inner rear view mirror assembly connector.

   2. Disconnect the D36 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 u1-5 (REV) - D36-1 Always Below 1 Ω u1-5 (REV) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

5. INSPECT BACK-UP LIGHT SWITCH ASSEMBLY

   
   

   1. Remove the back-up light switch assembly.

      
      

      • for G55: Click here

      • for R351: Click here

   2. Inspect the back-up light switch assembly Click here.

      Result

      Result	Proceed to
      OK	A
      NG (for G55)	B
      NG (for R351)	C

   
   

   B

   REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here

   C

   REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here

   A

   REPLACE INNER REAR VIEW MIRROR ASSEMBLY Click here