Reverse Signal Circuit

NAVIGATION: NAVIGATION SYSTEM (for CrewMax): Reverse Signal Circuit

Reverse Signal Circuit

DESCRIPTION

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

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK NAVIGATION RECEIVER





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










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





(a) Disconnect the K6 receiver connector.
(b) Disconnect the D35 switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:





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






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. INSPECT PARK / NEUTRAL POSITION SWITCH





(a) Disconnect the D35 switch connector
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






Result





E -- REPLACE PARK / NEUTRAL POSITION SWITCH
D -- REPLACE PARK / NEUTRAL POSITION SWITCH
C -- REPLACE PARK / NEUTRAL POSITION SWITCH
B -- REPLACE PARK / NEUTRAL POSITION SWITCH
A -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE