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 Transaxle






for Automatic Transaxle






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

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH, PNP SWITCH - BATTERY)




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






for Automatic Transaxle






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

Result:






E -- REPLACE PARK/NEUTRAL POSITION SWITCH (for U341E Automatic Transaxle)
D -- REPLACE PARK/NEUTRAL POSITION SWITCH (for U250E Automatic Transaxle)
C -- REPLACE BACK-UP LIGHT SWITCH (for E351 Manual Transaxle)
B -- REPLACE BACK-UP LIGHT SWITCH (for C59 Manual Transaxle)
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR