Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT:
- Use this procedure to troubleshoot the engine immobiliser system.
- The intelligent tester should be used in steps 4, 5 and 7.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
3 CRANK ENGINE FOR MORE THAN 10 SECONDS
4 CHECK FOR DTC
- Check for DTCs and note any codes that are output.
- Delete the DTC.
- Recheck for DTCs. Try to prompt the DTC (SFI system and engine immobiliser system) by simulating the original activity that the DTC suggested.
- If the DTC does not reoccur, proceed to A.
- If the DTC (SFI system) reoccurs, proceed to B.
- If the DTC (engine immobiliser system) reoccurs, proceed to C.
5 READ VALUE OF INTELLIGENT TESTER ((IMMOBILISER ECU (TRANSPONDER KEY ECU ASSEMBLY) (SWITCH CONDITION))
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch ON and push the intelligent tester main switch ON.
- Select the item KEY SW in the DATA LIST and read its value displayed on the intelligent tester.
Transponder key ECU
6 PROBLEM SYMPTOMS TABLE
- If the fault is not listed on the problem symptoms table, proceed to A.
- If the fault is listed on the problem symptoms table, proceed to B
7 OVERALL ANALYSIS AND TROUBLESHOOTING
- Inspection with the intelligent tester (ECU DATA MONITOR).
- Inspection with the intelligent tester (ACTIVE TEST).
- Terminals of ECU
8 ADJUST, REPAIR OR REPLACE
9 CONFIRMATION TEST
END
Engine immobiliser system
PARTS LOCATION
SYSTEM DESCRIPTION
The engine immobiliser system has been designed to prevent
the vehicle from being stolen. This system uses a
transponder key ECU that stores the key code of t ...
Registration
1. DESCRIPTION OF CODE REGISTRATION
HINT:
The key has 2 codes: The key code (immobiliser code)
and the wireless code. Both of these codes need to be
registered. Refer to page for the wireless code ...
Other materials:
Installation
1. INSTALL FRONT DOOR WINDOW FRAME MOULDING
Remove the tape from the front door window frame
moulding.
Clean the contact surface of the vehicle body with
white gasoline.
Clean the outer circumference of the front door
window frame moulding with white gasoline.
Apply new double-si ...
Reassembly
1. INSTALL REAR DISC
(a) Aligning the matchmarks, install the rear disc.
HINT:
Select the installation position where the disc has
the minimum runout.
2. INSPECT DISC RUNOUT
(a) Temporarily fasten the disc with the hub nuts.
Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
(b) Using a di ...
Vehicle identification number
Engine compartment
The vehicle identification number can be found
in the engine compartment, on the right-hand
side of the vehicle.
Windshield
The vehicle identification number can also be
found behind the windshield.
iDrive
It is also possible to display the vehicle identification
number via iD ...
