Toyota Sienna Service Manual: Diagnosis system
1. CHECK DLC3
- The ECU uses the ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.
NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches, or the doors.
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
HINT: If the display shows an error message after having connected the cable of the intelligent tester to the DLC3, turned the ignition switch to the ON position, and operated the tester, there is a problem on either the vehicle side or the tool side.
- If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle.
- If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual.
Terminals of ECU
1. COMBINATION METER ASSEMBLY
*1: with Power Rear No. 2 Seat with Stowing Function
*2: with Theft Deterrent System
Waveform 1 (Reference) : Using an oscilloscope:
OK ...
Data list / active test
1. DATA LIST
Using the intelligent tester to read the Data List allows
the values or states of switches, sensors, actuators and
other items to be read without removing any parts. This
non-intrusiv ...
Other materials:
Detailed Bluetooth®
system settings
You can confirm and change the detailed Bluetooth® settings.
How to check and change detailed Bluetooth® settings
Display the “Bluetooth* Setup” screen.
Select “System Settings”.
The following screen is displayed:
Bluetooth* Power on/off
You can change Bluetooth*
fu ...
Abbreviations used in manual
...
Fuel Pump Primary Circuit
DTC P0230 Fuel Pump Primary Circuit
DESCRIPTION
This DTC is designed to detect a malfunction in the fuel pump
(FUEL PUMP) relay circuit. When the
system is normal, the battery voltage is applied to FPR terminal of the ECM
while the FUEL PUMP
relay is turned OFF. If the battery v ...
