Toyota Sienna Service Manual: 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 disc is not deformed or cracked.
OK: No deformations or cracks appear on the map disc.
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Vehicle Position Mark is not Updated
INSPECTION PROCEDURE
1 CHECK MAP DISC
Check that the map disc is not deformed or cracked.
OK:
No deformations or cracks on map disc.
2 CHECK MAP DISPLAY
Check if a touch scroll can b ...
GPS Mark is not Displayed
INSPECTION PROCEDURE
1 CHECK CABIN
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 r ...
Other materials:
Door LOCK Position Circuit
DESCRIPTION
This circuit detects the state of the door lock detection sensor and send it
to the Multiplex network body
ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the i ...
Initialization
1. RESET
When the back door lock is replaced:
The power back door ECU cannot receive a switch
signal from the lock. This may cause the power
back door system to enter fail-safe mode and DTC
B2215 to set, and also make the system disabled.
When the lock is replaced, be sure to perform t ...
ECM Power Source Circuit
DESCRIPTION
When the ignition switch is turned to the ON position, the battery voltage is
applied to terminal IGSW of
the ECM. The ECM MREL output signal causes a current to flow to the coil,
closing the contacts of the EFI
relay and supplying power to terminal +B of the ECM.
If the igniti ...
