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
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 ...
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:
Reassembly
1. INSTALL OIL PUMP COVER
(a) Coat the drive and driven rotors with engine oil and
place them into the timing chain cover with the
marks facing outward (oil pump cover side). Check
that the rotors rotate smoothly.
(b) Install the oil pump cover with the 8 bolts.
Torque: 9.1 N*m (93 kgf ...
Stop light switch
ON-VEHICLE INSPECTION
1. STOP LIGHT SWITCH ASSEMBLY
Check the resistance between the terminals at each
switch position as shown ion the chart.
Resistance
...
Open in Side Squib RH Circuit
DTC B0111/44 Open in Side Squib RH Circuit
DESCRIPTION
The side squib RH circuit consists of the center airbag sensor assembly and
the front seat side airbag
assembly RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0111/44 is recorded when an open circ ...