Reverse Signal Circuit

PARK ASSIST / MONITORING: REAR VIEW MONITOR SYSTEM: Reverse Signal Circuit
- Reverse Signal Circuit

DESCRIPTION

The inner rear view mirror assembly receives a reverse signal from the park/neutral position switch or the back-up light switch.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

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

(a) Disconnect the R6 inner rear view mirror assembly connector.





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

Standard Voltage:





(c) Reconnect the inner rear view mirror assembly connector.

NG -- SYSTEM CHECK

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Rear View Monitor System

2. SYSTEM CHECK

(a) Check the vehicle specifications.

Result





B -- INSPECT BACK-UP LIGHT SWITCH (IG SIGNAL)
A -- Continue to next step.

3. INSPECT PARK/NEUTRAL POSITION SWITCH (IG SIGNAL)

(a) Disconnect the B35 park/neutral position switch connector.





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

Standard Voltage:





(c) Reconnect the park/neutral position switch connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (INNER MIRROR - PNP SWITCH)

(a) Disconnect the R6 inner rear view mirror assembly connector.





(b) Disconnect the B35 park/neutral position switch connector.

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

Standard Resistance:





Result





(d) Reconnect the inner rear view mirror assembly connector.

(e) Reconnect the park/neutral position switch connector.

C -- REPLACE PARK/NEUTRAL POSITION SWITCH (for A750F) Removal

B -- REPLACE PARK/NEUTRAL POSITION SWITCH (for A750E)

A -- REPAIR OR REPLACE HARNESS OR CONNECTOR

5. INSPECT BACK-UP LIGHT SWITCH (IG SIGNAL)

(a) Disconnect the B42 back-up light switch connector.





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

Standard Voltage:





(c) Reconnect the back-up light switch connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (INNER MIRROR - BACK-UP LIGHT SWITCH)

(a) Disconnect the R6 inner rear view mirror assembly connector.





(b) Disconnect the B42 back-up light switch connector.

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

Standard Resistance:





(d) Reconnect the inner rear view mirror assembly connector.

(e) Reconnect the back-up light switch connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE BACK-UP LIGHT SWITCH Disassembly