Reverse Signal Circuit

NAVIGATION: NAVIGATION SYSTEM: Reverse Signal Circuit
- Reverse Signal Circuit

DESCRIPTION

The navigation receiver assembly receives a reverse signal from the park/neutral position switch and information about the GPS antenna, and then adjusts the vehicle position on the navigation display.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT NAVIGATION RECEIVER ASSEMBLY

(a) Disconnect navigation receiver assembly connector E5.





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

Standard voltage:





NG -- CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH)

OK -- REPLACE NAVIGATION RECEIVER ASSEMBLY Removal

2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH)

(a) Disconnect navigation receiver assembly connector E5.





(b) Disconnect park/neutral position switch connector B5.

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

Standard resistance:





*1: for 2GR-FE

*2: for 1AR-FE

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

3. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY)

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





Standard voltage:





*1: for 2GR-FE

*2: for 1AR-FE

Result:





C -- REPLACE PARK/NEUTRAL POSITION SWITCH (for U151F)

B -- REPLACE PARK/NEUTRAL POSITION SWITCH (for U151E) Removal

A -- REPAIR OR REPLACE HARNESS OR CONNECTOR