Toyota Sienna Service Manual: DTC check / clear
1. USING INTELLIGENT TESTER
- Hook up the intelligent tester to the DLC3.
- Monitor the ECU data by following the prompts on the tester screen.
HINT: intelligent tester has "Snapshot" function which records the monitored data. Please refer to the intelligent tester operator's manual for further details.
2. DTC CLEAR
- DTC and freeze frame data can be erased by operating the intelligent tester.
Terminals of ECU
1. Instrument Panel Junction Block Assembly
...
Data list / active test
1. DATA LIST
HINT:
By the DATA LIST displayed by the intelligent tester, you
can read the value of the switch, sensor, actuator and so
on without removing any part. Reading the DATA LIST
as the f ...
Other materials:
Catalyst System Efficiency Below Threshold
MONITOR DESCRIPTION
The ECM uses the sensors mounted in front of and behind the three-way
catalyst (TWC) to monitor its
efficiency. The first sensor, an Air Fuel ratio (A/F) sensor, sends pre-catalyst
A/F ratio information to the
ECM. The second sensor, a heated oxygen sensor (O2S), sends ...
Operating the meter control switches
The multi-information display is
operated using the meter control
switches.
Enter/Set
Select an item/Change pages
Return to the previous screen
Press: Displays the screen registered
as the top screen
When no screen has been registered, the drive information screen will be
displ ...
Air conditioning filter
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency
Removal method
Turn the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system).
Open the glove box. Slide off
the damper.
...
