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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:

Bluetooth
When using the Bluetooth® audio system In the following conditions, the system may not function. If the portable audio player is turned off If the portable audio player is not connected If the portable audio player’s battery is low There may be a delay if a cellular phone conn ...

Installation
1. Install generator assembly (a) Install the bracket with the bolt. Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf) (b) Install the wire harness clamp stay. Torque: 8.4 N*m (86 kgf*cm, 74 in.*lbf) (c) Connect the wire harness clamp. (d) Install the generator assembly to the cylinder ...

Disassembly
1. REMOVE REAR NO. 2 SEAT COVER BEZEL  Remove the 5 screws.  Disengage the 5 claws and remove the rear No. 2 seat cover bezel. 2. REMOVE REAR SEAT RECLINING COVER LH  Remove the 2 screws.  Disengage the claw and remove the rear seat reclining cover LH. ...

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