Toyota Sienna Service Manual: Basic inspection
When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when engine troubleshooting.
1 CHECK BATTERY VOLTAGE
NOTICE: Carry out this check with the engine stopped and ignition switch off.
Result
2 CHECK WHETHER ENGINE CRANKS
3 CHECK WHETHER ENGINE STARTS
4 CHECK AIR FILTER
- Visually check that the air filter is not excessively contaminated with dirt or oil.
5 CHECK IDLING SPEED
- Check the idling speed
6 CHECK FUEL PRESSURE
- Check the fuel pressure
7 CHECK FOR SPARKS
- Check for sparks
PROCEED TO PROBLEM SYMPTOMS TABLE
Check for intermittent
problems
1. CHECK FOR INTERMITTENT PROBLEMS
HINT:
For use of the intelligent tester only:
Inspect the vehicle's ECM using check mode.
Intermittent problems are easier to detect with an
intelligent teste ...
Registration
NOTICE:
The Vehicle Identification Number (VIN) must be input
into the replacement ECM.
HINT:
The VIN is a 17-digit alphanumeric vehicle identification
number. The intelligent tester is required ...
Other materials:
Door control transmitter
INSPECTION
1. INSPECT DOOR CONTROL TRANSMITTER
Inspect operation of the transmitter.
Remove the battery (lithium battery) from the transmitter.
Install a new or normal battery (lithium battery).
When a new or normal battery is not available,
connect 2 new ...
Data list / active test
1. DATA LIST
HINT:
Using the intelligent tester's DATA LIST allows the status
of a switch, sensor, actuator and other items to be read
without removing any parts. Reading the DATA LIST
early in troubleshooting is one way to save time.
Connect the intelligent tester (with CAN VIM) to t ...
Glove boxes
Upper glove box
Push the button.
Open the lid.
Lower glove box
The lower glove box can be opened by pulling the lever and can be
locked and unlocked by using the master key (vehicles without a
smart key) or the mechanical key (vehicles with a smart key system).
Unlo ...
