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
PROCEDURE
1. INSPECT INNER REAR VIEW MIRROR ASSEMBLY (REVERSE SIGNAL)
(a) Disconnect the I8 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
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 P1 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 I8 inner rear view mirror assembly connector.
(b) Disconnect the P1 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.
D -- REPLACE PARK/NEUTRAL POSITION SWITCH (for A750F)
C -- REPLACE PARK/NEUTRAL POSITION SWITCH (for A750E)
B -- REPLACE PARK/NEUTRAL POSITION SWITCH (for A340E)
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR
5. INSPECT BACK-UP LIGHT SWITCH (IG SIGNAL)
(a) Disconnect the B1 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 I8 inner rear view mirror assembly connector.
(b) Disconnect the B1 back-up light 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 back-up light switch connector.
E -- REPLACE BACK-UP LIGHT SWITCH (for RA60F)
D -- REPLACE BACK-UP LIGHT SWITCH (for RA60)
C -- REPLACE BACK-UP LIGHT SWITCH (for R155F)
B -- REPLACE BACK-UP LIGHT SWITCH (for R155)
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR