Toyota RAV4 manuals

Toyota Sienna Service Manual: Reverse Signal Circuit

DESCRIPTION

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

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT RADIO AND NAVIGATION ASSEMBLY

INSPECT RADIO AND NAVIGATION ASSEMBLY

  1. Disconnect the radio and navigation assembly connector R12.
  2.  Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

2 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION - PARK / NEUTRAL POSITION SWITCH)

CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION - PARK / NEUTRAL POSITION SWITCH)

  1. Disconnect the radio and navigation assembly connector R12 and park/neutral position switch connector P1.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

3 INSPECT PARK / NEUTRAL POSITION SWITCH

 INSPECT PARK / NEUTRAL POSITION SWITCH

  1. Disconnect the park/neutral position switch connector P1.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

REPAIR OR REPLACE HARNESS OR CONNECTOR

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Other materials:

Diagnostic trouble code chart
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Installation
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