Toyota RAV4 manuals

Toyota Sienna Service Manual: Diagnosis system

1. CHECK DLC3

CHECK DLC3

  1.  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.

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:

Check for short circuit
(a) If the wire harness is ground shorted (Fig. 5), locate the section by conducting a resistance check with the body ground (below).   (b) Check the resistance with the body ground. (1) Disconnect connectors A and C and measure the resistance. Standard resistance (Fig. 6) HIN ...

If your vehicle overheats
The following may indicate that your vehicle is overheating. The needle of the engine coolant temperature gauge enters the red zone or a loss of engine power is experienced. (For example, the vehicle speed does not increase.) The warning message indicating overheats is shown on the mult ...

Differential system
PRECAUTION NOTICE: When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected. 1. Before disassembly, clean the outside of the rear differential assembly and remove any sand or mud to prevent it from entering the inside of the as ...

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