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Toyota Sienna Service Manual: Pressing Power Switch does not Turn on System

INSPECTION PROCEDURE

1 CHECK VEHICLE CONDITION

  1. Check that conditions in the cabin are not likely to cause condensation.

HINT: This problem occurs when the cabin is humid and the temperature changes rapidly. This may produce condensation, resulting in a short circuit.

OK: Condensation is not likely to be produced.

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Noise Occurs
INSPECTION PROCEDURE 1 NOISE CONDITION Check in which direction the noise comes from (front left or right, or rear left or right). Check in which direction the noise comes from. OK: T ...

No Sound can be Heard from Speakers
INSPECTION PROCEDURE 1 CHECK RADIO RECEIVER Check radio receiver setting.  Check that the volume is not set to "0".  Check that "MUTE" is off. OK: The vo ...

Other materials:

Diagnostic trouble code chart
HINT: If a malfunction code is displayed during the DTC check, check the circuit indicated by the DTC. For details of each code, turn to the page for the respective "DTC Code" in the DTC chart. DTC chart of ABS: DTC chart of VSC: ...

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 screen. HINT: Refer to the intelligent tester operator's manual for further deta ...

Diagnostic trouble code chart
HINT:  If a trouble code is displayed during the DTC check, inspect the circuit listed for that code. For details of the code, refer to the "See page" in the DTC chart.  Inspect the fuse and relay before investigating the suspected areas shown in the table below. W ...

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