Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2006SIENNA FWD V6-3.3L (3MZ-FE)REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTRANSMISSION CONTROL SYSTEMSTESTING AND INSPECTIONREADING AND CLEARING DIAGNOSTIC TROUBLE CODESCLEARING TROUBLE CODES
2006 Toyota Sienna FWD V6-3.3L (3MZ-FE)
Clearing Trouble Codes
2006 Toyota Sienna FWD V6-3.3L (3MZ-FE)SECTION Clearing Trouble Codes
DTC CLEAR
a. When using the OBD II scan tool or intelligent tester: Clearing the DTCs.
(1) Connect the OBD II scan tool or intelligent tester to the DLC3.
(2) Turn the ignition switch to the on position and turn the OBD II scan tool or the intelligent tester main switch on.
(3) Select the item DIAGNOSIS / ENHANCED OBD II / DTC INFO / CLEAR CODES [YES] button.
HINT: When operating the OBD II scan tool (complying with SAE J 1978) or intelligent tester to erase the codes, the DTCs and freeze frame data will be erased. (See the OBD II scan tool's instruction book for operating instructions.)
b. When not using the OBD II scan tool or intelligent tester: Clearing the DTCs.
(1) Disconnect the battery terminal or remove the EFI and ETCS fuses from the engine room J/B for 60 seconds or more. However, if you disconnect the battery terminal, perform the INITIALIZE procedure. Programming and Relearning
a. When using the OBD II scan tool or intelligent tester: Clearing the DTCs.
(1) Connect the OBD II scan tool or intelligent tester to the DLC3.
(2) Turn the ignition switch to the on position and turn the OBD II scan tool or the intelligent tester main switch on.
(3) Select the item DIAGNOSIS / ENHANCED OBD II / DTC INFO / CLEAR CODES [YES] button.
HINT: When operating the OBD II scan tool (complying with SAE J 1978) or intelligent tester to erase the codes, the DTCs and freeze frame data will be erased. (See the OBD II scan tool's instruction book for operating instructions.)
b. When not using the OBD II scan tool or intelligent tester: Clearing the DTCs.
(1) Disconnect the battery terminal or remove the EFI and ETCS fuses from the engine room J/B for 60 seconds or more. However, if you disconnect the battery terminal, perform the INITIALIZE procedure. Programming and Relearning
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.