Toyota RAV4 manuals

Toyota Sienna Service Manual: Check for intermittent problems

1. CHECK FOR INTERMITTENT PROBLEMS

HINT: For use of the intelligent tester only: Inspect the vehicle's ECM using check mode.

Intermittent problems are easier to detect with an 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.
  2.  Switch the ECM from normal mode to check mode using an intelligent tester.
  3.  Perform a simulation test.
  4.  Check and wiggle the harness(es), connector(s) and terminal(s)
How to proceed with troubleshooting
HINT: The intelligent tester can be used in steps 2, 3, 4, 6 and 9. 1 VEHICLE BROUGHT TO WORKSHOP 2 CONNECT INTELLIGENT TESTER TO DLC3 HINT: If the display indicates a communication fault in the ...

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:

Scratched / Reversed Disc
63-46 Scratched / Reversed Disc DESCRIPTION DTC No. DTC Detection Condition Trouble Area 63-46 Scratches or dirt is found on CD surface or CD is set upside down. CD  Radio and navigation assembly INSPECTION PROCEDURE H ...

If your vehicle has to be stopped in an emergency
Only in an emergency, such as if it becomes impossible to stop the vehicle in the normal way, stop the vehicle using the following procedure: Steadily step on the brake pedal with both feet and firmly depress it. Do not pump the brake pedal repeatedly as this will increase the effort requi ...

Inspection
1. INSPECT MASS AIR FLOW METER  Visually check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter. OK: There is no foreign matter. If the result is not as specified, replace the mass air flow meter. Measure the resistance according to the ...

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