Toyota RAV4 manuals

Toyota RAV4 Service Manual: Check for intermittent problems

Toyota RAV4 Service Manual / 2Az-fe engine mechanical / Sfi system / Check for intermittent problems

Hint:

Inspect the vehicle's ecm using check mode. Intermittent problems are easier to detect with the intelligent tester when the ecm is in check mode. In check mode, the ecm uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.

  1. Clear the dtcs (see page es-35).
  2. Switch the ecm from normal mode to check mode using the intelligent tester (see page es-38).
  3. Perform a simulation test.
  4. Check and wiggle the harness(es), connector(s) and terminal(s).
How to proceed with troubleshooting
Hint: *: Use the intelligent tester. Hint: If the display indicates a communication fault in the tester, inspect the dlc3. Hint: Record or print dtcs and freeze frame data, if necessary. ...

Basic inspection
When a malfunction is not confirmed by the dtc check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic ...

Other materials:

Before refueling the vehicle
Close all the doors and windows, and turn the engine switch to the “lock” position (vehicles without a smart key system) or off (vehicles with a smart key system). Confirm the type of fuel. Fuel types Unleaded gasoline (octane rating 87 [research octane number 91] or higher) Cauti ...

Axle system
Problem symptoms table Hint: Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "suspected area" column of the table. Check each symptom by checking the suspected areas in the order th ...

Check for intermittent problems
Check for intermittent problems Hint: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ecus can be detected by using the ecu data list function of an intelligent tester. Turn the ignition switch off and connect the intelligent test ...

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