Toyota Sienna Service Manual: 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 tester when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
(a) Clear the DTCs (See page ES-39).
(b) Switch the ECM from normal mode to check mode using an intelligent tester (See page ES-43).
(c) Perform a simulation test (See page IN-35).
(d) Check and wiggle the harness(es), connector(s) and terminal(s) (See page IN-30).
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 th ...
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 ...
Other materials:
Automatic transaxle unit
COMPONENTS
...
Engine assembly
Components
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-13)
2. DISCHARGE REFRIGERANT FROM
REFRIGERATION SYSTEM (See page AC-172)
3. REMOVE BATTERY
(a) Disconnect the negative battery terminal.
(b) Disconnect the positive battery ...
Stowing the spare tire
Lay down the tire with the outer
side (valve stem) facing up, and
install the holding bracket.
Turn the jack handle clockwise
to raise the tire until the tire is in
the correct position as the jack
handle skips.
Stow the tools.
The compact spare tire
The compact s ...
