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

AVC-LAN Circuit
DESCRIPTION Each unit of the navigation system connected to the AVC-LAN (communication bus) transfers the signal of each switch by communication. When a short to +B or short to ground occurs in ...

Navigation Voice Circuit
DESCRIPTION This circuit is used when the voice guidance in the navigation system is on. WIRING DIAGRAM INSPECTION PROCEDURE 1 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - STER ...

Other materials:

Wrong Disc/ Disc cannot be Read
DTC 44-41 Wrong Disc DTC 44-42 Disc cannot be Read DESCRIPTION DTC No. DTC Detection Condition Trouble Area 44-41 An unsuitable disc is inserted DVD Television display assembly 44-42 The disc cannot be read. INSPECTION ...

DTC check / clear
HINT:  Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle.  If the system cannot enter the diagnostic mode, inspect all AVC-LAN communication ...

Diagnosis system
1. CHECK DLC3  The vehicle's ECU uses ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not ...

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