Toyota Sienna Service Manual: 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 to register the VIN.
1. INPUT INSTRUCTIONS
- The general VIN input instructions using the
intelligent tester are shown below:
- The arrow buttons (UP, DOWN, RIGHT and LEFT)
and numerical buttons (0 to 9) are used to input the
VIN.
- Cursor Operation
To move the cursor around the tester screen, press
the RIGHT and LEFT buttons.
- Alphabetical Character Input
- Press the UP and DOWN buttons to select the
desired alphabetical character.
- Numerical Character Input
- Press the numerical button corresponding to
the number that you want to input.
HINT:
Numerical characters can be selected by using
the UP and DOWN buttons.
- Correction
- When correcting the input character(s), put the
cursor onto the character using the RIGHT and
LEFT buttons.
- Select or input the correct character using the
UP and DOWN buttons, or the numerical
buttons.
- Finishing Input Operation
- Make sure that the input VIN matches the
vehicle VIN after input.
- Press the ENTER button on the tester.
2. READ VIN (Vehicle Identification Number)
- The VIN reading process is shown in the flowchart
below. Reading the VIN stored in the ECM is
necessary when comparing it to the VIN provided
with the vehicle.
- Read the VIN using the intelligent tester.
- Check the vehicle's VIN.
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Turn the tester ON.
- Enter the following menus: DIAGNOSIS /
ENHANCED OBD II / VIN.

3. WRITE VIN
- The VIN writing process is shown in the flowchart
below. This process allows the VIN to be input into
the ECM. If the ECM is changed, or the ECM VIN
and Vehicle VIN do not match, the VIN can be
registered, or overwritten in the ECM by following
this procedure.
- Write VIN using the intelligent tester.
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Turn the tester ON.
- Enter the following menus: DIAGNOSIS /
ENHANCED OBD II / VIN.



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 ...
The purpose of the monitor result (mode 06) is to allow
access to the results for on-board diagnostic monitoring tests
of specific components/systems that are not continuously
monitored. Examples a ...
Other materials:
Sound Signal Circuit between Radio Receiver and Stereo Component
Amplifier
DESCRIPTION
The radio receiver sends a sound signal to the stereo component amplifier
through this circuit.
The sound signal that has been sent is amplified by the stereo component
amplifier, and then is sent to
the speakers.
If there is an open or short in the circuit, sound cannot be h ...
Combination Meter ECU Communication Stop
DTC B1271 Combination Meter ECU Communication Stop
DESCRIPTION
DTC B1271 is output when communication between the combination meter and the
multiplex network
gateway ECU stops for more than 10 seconds.
DTC No.
DTC Detection Condition
Trouble Area
B1271
...
Removal
1. REMOVE INSTRUMENT CLUSTER CENTER NO. 1 FINISH PANEL
2. REMOVE INSTRUMENT CLUSTER CENTER NO. 2
FINISH PANEL
3. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY
4. REMOVE POSITION INDICATOR HOUSING ASSEMBLY
5. REMOVE INSTRUMENT CLUSTER CENTER LOWER FINISH PANEL SUB-ASSEMBLY
6. REMOVE CIGARETTE LIGHTER CO ...