Toyota Sienna Service Manual: Diagnosis system

Toyota Sienna Service Manual / Air conditioning / Air conditioning system (for automatic air conditioning system) / Diagnosis system

1. CHECK DLC3

Diagnosis system

(a) The vehicle's ECM uses the ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.

HINT: Connect the cable of the intelligent tester to the DLC3, turn the ignition switch to the ON position and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.

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.

Diagnosis system

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.

Terminals of ecu

1. A/C AMPLIFIER (a) Waveform 1: (b) Waveform 2: (c) Waveform 3: ...

Dtc check / clear

1. DTC CHECK (SENSOR CHECK) (a) After the indicator check is completed, the system enters the DTC check mode automatically. (b) Read the codes displayed on the panel. Refer to the list of co ...

Other materials:

Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1)
DESCRIPTION Shifting from 1st to 5th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, SL3, S4 and SR which are controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM cont ...

Sliding roof switch assembly
ON-VEHICLE INSPECTION 1. INSPECT SLIDING ROOF SWITCH ASSEMBLY Remove the switch. Check the resistance between the terminals when operating the switch. Resistance If the result is not as specified, replace the switch set. ...

Installation
1. INSTALL REAR DOOR GLASS WEATHERSTRIP Install the rear door glass weatherstrip. 2. INSTALL SLIDE DOOR WINDOW ASSEMBLY 3. INSTALL REAR DOOR GLASS RUN 4. INSTALL REAR DOOR TRIM BOARD SUBASSEMBLY 5. INSTALL SIDE TRIM BOARD COVER REAR 6. INSTALL REAR DOOR WINDOW FRAME SUBASSEMBLY 7. INSTA ...