Toyota RAV4 manuals

Toyota Sienna Service Manual: GPS Mark is not Displayed

INSPECTION PROCEDURE

1 CHECK CABIN

  1. Check the cabin for any object that might interrupt radio reception on the instrument panel. If such an object exists, remove it and check if the GPS mark reappears.

HINT: The GPS uses extremely faint radio waves originating from satellites. If the signal is interrupted by obstructions or other radio waves, the GPS may not be able to properly receive the signal.

OK: Mark appears

NORMAL OPERATION

2 CHECK SURROUNDINGS

  1. Check if the vehicle is in a location where GPS signal reception is poor. If the vehicle is in such a place, relocate the vehicle and check if the GPS mark reappears.

HINT: The GPS uses 24 satellites in 6 orbits. At any point in time, 4 satellites should be able to pinpoint your vehicle.

However, GPS signals may not reach the vehicle due to influence from the surroundings, vehicle direction, and time. For illustrated examples, see below.

CHECK SURROUNDINGS

OK: GPS mark is displayed.

SYSTEM RETURNS TO NORMAL

3 CHECK GPS INFORMATION (NAVIGATION CHECK MODE)

 CHECK GPS INFORMATION (NAVIGATION CHECK MODE)

  1. Enter the "Navigation Check" mode (GPS Information).
  2. Check how many of the following codes appear in the "STS" column.

For DENSO Made: T, P
For AISIN AW Made: 08H, 04H

OK: At least 3 codes appear

REPLACE RADIO AND NAVIGATION ASSEMBLY

Current Position Display does not Appear
INSPECTION PROCEDURE 1 CHECK RADIO AND NAVIGATION ASSEMBLY Check if a map disc is inserted into the map disc slot. OK: A map disc is inserted 2 CHECK MAP DISC Check that the map ...

Voice Guidance does not Function
INSPECTION PROCEDURE 1 CHECK NAVIGATION SYSTEM SETTING Enter the "Menu" screen by pressing the "MENU" switch.  Select "Volume". Check that " ...

Other materials:

MIL Circuit
DESCRIPTION The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunctions detected by the ECM. When the ignition switch is turned to the ON position, power is supplied to the MIL circuit, and the ECM provides the circuit ground which illuminates the MIL. The MIL operation ...

On-vehicle inspection
1. CHECK SEAT HEATER CONTROL (WIRE HARNESS SIDE)  Disconnect the connector from the seat heater control.  Measure the voltage and resistance of each terminal of the wire harness side connector. Standard If the result is not as specified, there may be a malfunction on ...

Data list / active test
1. USING INTELLIGENT TESTER  Connect the intelligent tester to the DLC3.  Monitor the ECU data by following the prompts on the tester screen. HINT: The intelligent tester has a "Snapshot" function which records the monitored data. Refer to the intelligent tester ope ...

В© 2011-2022 Copyright www.tsienna.net