Toyota RAV4 manuals

Toyota Sienna Service Manual: Symptom confirmation and diagnostic trouble code

HINT:

The diagnostic system in the SIENNA has various functions.

Symptom confirmation and diagnostic trouble code

Symptom confirmation and diagnostic trouble code

  1. DTC CHECK

  1. MAKE A NOTE OF DTCS DISPLAYED AND THEN CLEAR MEMORY

  1. SYMPTOM CONFIRMATION

Result

  1. SIMULATION TEST USING SYMPTOM SIMULATION METHODS

  1. DTC CHECK

Result

  1. SYMPTOM CONFIRMATION

Result

If a DTC was displayed in the initial DTC check, the problem may have occurred in a wire harness or connector in that circuit in the past. Check the wire harness and connectors.

TROUBLESHOOTING OF EACH PROBLEM SYMPTOM

The problem still occurs in a place other than the diagnostic circuit (the DTC displayed first is either for a past problem or a secondary problem).

Customer problem analysis
HINT: In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand w ...

Symptom simulation
HINT: The most difficult case in troubleshooting is when no problem symptoms occur. In such a case, a thorough problem analysis must be carried out. A simulation of the same or similar conditions ...

Other materials:

Power outlets
The power outlet can be used for the following components: 12 V: Accessories that run on less than 10 A 120 V AC: Accessories that use less than 100 W 12 V Open the cover. Center panel type A Center panel type B Luggage compartment 120 V AC (if equipped) Open the ...

Engine Coolant Temperature Circuit
DESCRIPTION A thermistor is built into the Engine Coolant Temperature (ECT) sensor, of which the resistance value varies according to the ECT. The structure of the sensor and its connection to the ECM are the same as those of the Intake Air Temperature (IAT) sensor. HINT: When any ...

Wrong Disc/ Disc cannot be Read
DTC 63-41 Wrong Disc DTC 63-42 Disc cannot be Read DESCRIPTION DTC No. DTC Detection Condition Trouble Area 63-41 An unsuitable disc is inserted CD  Radio and navigation assembly 63-42 The disc cannot be read INSP ...

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