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:

Power back door drive unit
INSPECTION 1. INSPECT POWER BACK DOOR DRIVE UNIT Remove the unit. Apply battery voltage to the terminals and check the motor operation. Standard If the result is not as specified, replace the drive unit. Check the resistance of the clutch terminals. Resistance If th ...

Rear wheel alignment
ADJUSTMENT NOTICE: For vehicles equipped with VSC, if wheel alignment has been adjusted, and if suspension or underbody components have been removed/installed or replaced, be sure to perform the following initialization procedure in order for the system to function normally: 1. Disconnect the ...

Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
DTC P2121 Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance HINT: This DTC relates to the Accelerator Pedal Position (APP) sensor. DESCRIPTION Refer to DTC P2120 MONITOR DESCRIPTION The accelerator pedal position sensor is mounted on the accelerator pedal ...

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