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

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:

Terminals of ECU
1. CHECK POWER SLIDE DOOR ECU LH (WITH POWER SLIDE DOOR) Disconnect the P25 and P26 ECU connectors, and check the voltage and resistance of each terminal of the wire harness side connecto ...

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 o ...

Other materials:

Fuel Pump Control Circuit
DESCRIPTION The FUEL PUMP relay switches the fuel pump speed according to the engine conditions. The fuel pump operates when the ECM receives the starter-operating signal (STA) and crankshaft-rotating signal (NE). The FUEL PUMP relay is turned ON while the engine is idling or operating at l ...

Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2)
SYSTEM DESCRIPTION The ECM uses signals from the vehicle speed sensor to detect the actual gear position (1st, 2nd, 3rd, 4th or 5th gear). Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve b ...

On-vehicle inspection
1. Check battery electrolyte level (a) Check the electrolyte level. (1) If the electrolyte level is low, replace the battery (or add distilled water) and check the charging system. 2. CHECK BATTERY SPECIFIC GRAVITY (a) Check the color of the hydrometer. Result 3. CHECK BATTERY VOLTAGE ...

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