Toyota Sienna Service Manual: Diagnosis system

Toyota Sienna Service Manual / Meter / Meter / gauge system / Diagnosis system

1. CHECK DLC3

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.

CHECK DLC3

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:

Removal
1. PRECAUTION HINT: See page RS-1 2. SEPARATE BATTERY NEGATIVE TERMINAL 3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 4. REMOVE HORN BUTTON ASSEMBLY (See page RS- 424) 5. REMOVE STEERING WHEEL ASSEMBLY (See page SR-6) 6. REMOVE STEERING COLUMN COVER LWR (See page RS-434) 7. REMOVE SPIRAL CA ...

Reassembly
1. INSTALL NO. 1 COOLER THERMISTOR (a) Install the No. 1 cooler thermistor as shown in the illustration. NOTICE: Be sure to insert the thermistor only once because reinserting it will not allow it to be firmly secured. When reusing the evaporator, insert the thermistor one row ne ...

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE REAR NO. 2 SEAT LEG SIDE GARNISH SUB-ASSEMBLY Disengage the 9 clips and remove the rear No. 2 seat leg side garnish sub-assembly. Remove the 9 clips from the rear No. 2 seat leg side garnish sub-assembly. 3. ...