Toyota RAV4 manuals

Toyota Sienna Service Manual: System normal condition check

Toyota Sienna Service Manual / Navigation / Navigation system / System normal condition check

1. CHECK NORMAL CONDITION

  1.  If the symptom is applicable to any of the following, it is intended behavior, and not a malfunction.

Symptom

Answer

A longer route than expected is chosen. Depending on the road conditions, the radio and navigation assembly may determine that a longer route is quicker.
Even when distance priority is high, the shortest route is not shown. Some paths may not be advised due to safety concerns.
When the vehicle is put into motion immediately after the engine starts, the navigation system deviates from the actual position. If the vehicle starts before the navigation system activates, the system may not react.
When running on certain types of roads, especially new roads, the vehicle position deviates from the actual position. When the vehicle is driving on new roads not available on the map disc, the system attempts to match it to another nearby road, causing the position mark to deviate.
  1. The following symptoms are not a malfunction, but are caused by errors inherent in the GPS, gyro sensor, speed sensor, and radio and navigation assembly.

CHECK NORMAL CONDITION

  1.  The current position mark may be displayed on a nearby parallel road.

CHECK NORMAL CONDITION

  1. Immediately after a fork in the road, the current vehicle position mark may be displayed on the wrong road.

CHECK NORMAL CONDITION

  1. When the vehicle turns right or left at an intersection, the current vehicle position mark may be displayed on a nearby parallel road.

CHECK NORMAL CONDITION

  1. When the vehicle is carried, such as on a ferry, and the vehicle itself is not running, the current vehicle position mark may be displayed in the position where the vehicle was until a measurement can be performed by GPS.

CHECK NORMAL CONDITION

  1. When the vehicle runs on a steep hill, the current vehicle position mark may deviate from the correct position.

CHECK NORMAL CONDITION

  1. When the vehicle makes a continuous turn of 360, 720, 1,080, etc. degrees, the current vehicle position mark may deviate from the correct position.

CHECK NORMAL CONDITION

  1. When the vehicle moves erratically, such as constant lane changes, the current vehicle position mark may deviate from the correct position.

CHECK NORMAL CONDITION

  1. When the ignition switch is turned to the ACC or ON position on a turntable before parking, the current vehicle position mark may not point in the correct direction. The same will occur when the vehicle comes out of parking.

CHECK NORMAL CONDITION

  1. When the vehicle runs on a snowy road or a mountain path with the chains installed or using a spare tire, the current vehicle position mark may deviate from the correct position.

CHECK NORMAL CONDITION

  1. When a tire is changed, the current vehicle position mark may deviate from the correct position.

HINT:

Identification of noise source
1. Radio Description Radio frequency band  Radio broadcasts use the radio frequency bands shown in the table below Service area The service areas of AM and FM broa ...

Display check mode
HINT:  This mode checks the color display on the display.  Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed a ...

Other materials:

Installation
1. INSTALL DISTANCE CONTROL ECU ASSEMBLY  Using a torque wrench, install the bolt. Torque: 5 N*m (51 kgf*cm, 44 in.*lbf) NOTICE: Do not install the dropped or shocked distance control ECU assembly. 2. INITIALIZE DISTANCE CONTROL ECU NOTICE: After replacing the distance control ECU ...

Zero Point Calibration of Yaw Rate Sensor Undone
DESCRIPTION The skid control ECU receives signals from the yaw rate sensor via CAN communication system. Yaw rate sensor has the built-in deceleration sensor. If there is trouble in the bus lines between the yaw rate and deceleration sensor and CAN communication system, the DTC U0123 ...

Occupant Classification ECU Malfunction
DTC B1795 Occupant Classification ECU Malfunction DESCRIPTION DTC B1795 is recorded when a malfunction is detected in the occupant classification ECU. Troubleshoot DTC B1771 first when the DTCs B1771 and B1795 are output simultaneously. WIRING DIAGRAM INSPECTION PROCEDURE 1 CHECK DTC ...

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