Toyota RAV4 manuals

Toyota Sienna Service Manual: Diagnosis system

1. CHECK DLC3

CHECK DLC3

  1. The vehicle's ECU uses 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

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.

CHECK DLC3

  1. Connect the cable of the intelligent tester to the DLC3, turn the ignition switch to the ON position and attempt to use the intelligent tester. If the screen displays a communication error message, a problem exists in the vehicle side of the tester side.

HINT:

2. BACK DOOR LOCK

  1. When the battery is reconnected: The back door is locked and therefore cannot be opened. Therefore, it is necessary to unlock the back door using the door control switch or transmitter switch.
Terminals of ECU
1. CHECK POWER BACK DOOR ECU Disconnect the P13 and P14 ECU connectors, and check the voltage or resistance of each terminal of the wire harness side connectors If the result is not ...

DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER) Checking DTCs. Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Read DTCs by following the prompts on the tester scr ...

Other materials:

Throttle Actuator Control Motor Current Range / Performance
DESCRIPTION The ETCS (Electronic Throttle Control System) has a dedicated power supply circuit. The voltage (+BM) is monitored and when it is low (less than 4 V), the ECM determines that there is a malfunction in the ETCS and cuts off the current to the throttle actuator. When the volt ...

Ignition Coil "A" Primary
HINT: These DTCs indicate malfunctions relating to the primary circuit. If DTC P0351 is set, check the No. 1 ignition coil with igniter circuit. If DTC P0352 is set, check the No. 2 ignition coil with igniter circuit. If DTC P0353 is set, check the No. 3 ignition coil with igniter circ ...

Customer problem analysis
HINT: In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem an ...

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