Toyota Sienna Service Manual: Vehicle Position Mark Deviates Greatly
INSPECTION PROCEDURE
1 CHECK GPS MARK
- Check that the GPS mark is displayed.
OK: GPS mark is displayed
2 CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)
- Enter the "Navigation Check" mode (Vehicle Sensors).
- While driving the vehicle, compare the "Speed" indicator to the reading on the speedometer. Check that these readings are almost equal.
OK: The readings are almost equal.
3 CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)
- Check that the display changes between ON and OFF according to the shift lever operation (P and R).
OK
HINT: The display is updated once per second. It is normal for the display to lag behind the actual switch operation.
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Map Disc cannot be Inserted
INSPECTION PROCEDURE
1 CHECK RADIO AND NAVIGATION ASSEMBLY
Check if a disc is inserted into the MAP disc slot.
Check if "DISC IN" is displayed.
OK:
"DISC IN&quo ...
Cursor or Map Rotates when Vehicle Stopped
INSPECTION PROCEDURE
1 CHECK CONDITION
Check with the customer if the vehicle has been turned
by a turntable.
OK:
Vehicle has not been turned by turntable.
HINT:
If the vehicle is t ...
Other materials:
Problem symptoms table
If there are no DTCs output but the problem still occurs,
check the circuits for each problem symptom in the order
given in the table below and proceed to the relevant
troubleshooting page.
NOTICE:
When replacing the brake actuator assembly, sensor,
etc., turn the ignition switch off.
HINT:
...
ECM
COMPONENTS
REMOVAL
1. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY
(a) Push the right side wall and then push the left wall
to release the stoppers.
(b) Pull the glove compartment door sub-assembly
rearward to remove it.
2. REMOVE NO. 2 INSTRUMENT PANEL BOX
(a) Disengage the 2 claws ...
How to proceed with
troubleshooting
HINT:
The intelligent tester can be used in steps 2, 3, 4, 6 and 9.
1 VEHICLE BROUGHT TO WORKSHOP
2 CONNECT INTELLIGENT TESTER TO DLC3
HINT:
If the display indicates a communication fault in the tester,
inspect the DLC3.
3 CHECK DTC AND FREEZE FRAME DATA
Check for DTC(s) and freeze frame ...
