Toyota RAV4 manuals

Toyota Sienna Service Manual: Diagnosis system

1. DESCRIPTION

  1.  When troubleshooting a vehicle with the diagnosis system, the only difference from the usual troubleshooting procedure is connecting the intelligent tester to the vehicle and reading various data output from the vehicle's clearance warning ECU.

    The clearance warning ECU records DTCs when the computer detects a malfunction in the computer itself or in its circuits.

    To check the DTCs, connect the intelligent tester to the DLC3 on the vehicle. The intelligent tester enables you to erase the DTCs, activate the various actuators, and check the freeze frame data and Data List.

2. CHECK DLC3

CHECK DLC3

  1.  The ECU uses ISO 15765-4 for communication.

    The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.

    If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness or connector.

Standard

Standard

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.

HINT: Connect the cable of the intelligent tester to the DLC3, turn the power switch ON (IG) 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.

Terminals of ECU
1. CHECK OUTER MIRROR CONTROL ECU LH Disconnect the O9 and O10 connectors. Measure the voltage and resistance according to the value(s) in the table below. Voltage Resistance If t ...

Data list / active test
1. USING INTELLIGENT TESTER  Connect the intelligent tester to the DLC3.  Monitor the ECU data by following the prompts on the tester screen. HINT: The intelligent tester has a & ...

Other materials:

Eject Error/ Elevator Error/ Clamp Error
DTC 63-45 Eject Error DTC 63-51 Elevator Error DTC 63-52 Clamp Error DESCRIPTION DTC No. DTC Detection Condition Trouble Area 63-45 Magazine cannot be ejected. Radio and navigation assembly 63-51 Mechanical error occurs during elevator ...

Precaution for cooling fan system
NOTICE: • When the ignition switch is turned off and the engine temperature is high, the cooling fans may operate for approximately 3 minutes. • After turning the ignition switch off, keep hands and objects away from the fans when they are operating. HINT: If all of the following a ...

Intake Air Temperature Circuit/ Intake Air Temperature Circuit Low Input/ Intake Air Temperature Circuit High Input
DTC P0110 Intake Air Temperature Circuit DTC P0112 Intake Air Temperature Circuit Low Input DTC P0113 Intake Air Temperature Circuit High Input DESCRIPTION The Intake Air Temperature (IAT) sensor, mounted on the Mass Air Flow (MAF) meter, monitors the IAT. The IAT sensor has a built-in ther ...

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