Reverse Signal Circuit

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Reverse Signal Circuit

Reverse Signal Circuit

DESCRIPTION

The navigation receiver assembly receives a reverse signal from the back-up light switch or the park/neutral position switch and information about the GPS antenna, and then adjusts the vehicle position.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT NAVIGATION RECEIVER ASSEMBLY




(a) Disconnect the navigation receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:






NG -- CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - BACK-UP LIGHT SWITCH, PNP SWITCH)
OK -- REPLACE NAVIGATION RECEIVER ASSEMBLY
2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - BACK-UP LIGHT SWITCH, PNP SWITCH)




(a) Disconnect the navigation receiver assembly connector.
(b) Disconnect the back-up light switch*1 or the park/neutral position switch*2.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for Manual Transmission / Transaxle*1
for Automatic Transmission / Transaxle*2










HINT:
- *1: for Manual Transmission / Transaxle
- *2: for Automatic Transmission / Transaxle
- *3: for 2AZ-FE
- *4: for 2ZR-FE

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

3. CONFIRM MODEL
Result:






B -- CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY)
A -- Continue to next step.

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




(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:





- *3: for 2AZ-FE
- *4: for 2ZR-FE

Result:






C -- REPLACE BACK-UP LIGHT SWITCH (for E351 Manual Transmission / Transaxle)
B -- REPLACE BACK-UP LIGHT SWITCH (for C59 Manual Transmission / Transaxle)
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR
5. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY)




(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:






Result:






D -- REPLACE PARK/NEUTRAL POSITION SWITCH (for U140F Automatic Transmission / Transaxle)
C -- REPLACE PARK/NEUTRAL POSITION SWITCH (for U341E Automatic Transmission / Transaxle)
B -- REPLACE PARK/NEUTRAL POSITION SWITCH (for U250E Automatic Transmission / Transaxle)
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR