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.
2021 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE
Automatic Transaxle DTCS: GW6AX-El
AUTOMATIC TRANSAXLE (GW6AX-EL) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Refer to |
|---|---|
| P0218:00 | (See DTC P0218-00: .) |
| P0500:00 | (See DTC P0500-00: .) |
| P0666:00 | (See DTC P0666-00: .) |
| P0667:00 | (See DTC P0667-00: .) |
| P06B8:00 | (See DTC P06B8-00: .) |
| P0706:00 | (See DTC P0706-00: .) |
| P0707:00 | (See DTC P0707-00: .) |
| P0708:00 | (See DTC P0708-00: .) |
| P0711:00 | (See DTC P0711-00: .) |
| P0712:00 | (See DTC P0712-00: .) |
| P0713:00 | (See DTC P0713-00: .) |
| P0715:00 | (See DTC P0715-00: .) |
| P0716:00 | (See DTC P0716-00: .) |
| P0717:00 | (See DTC P0717-00: .) |
| P0720:00 | (See DTC P0720-00: .) |
| P0721:00 | (See DTC P0721-00: .) |
| P0722:00 | (See DTC P0722-00: .) |
| P0729:00 | (See DTC P0729-00: .) |
| P0731:00 | (See DTC P0731-00: .) |
| P0732:00 | (See DTC P0732-00: .) |
| P0733:00 | (See DTC P0733-00: .) |
| P0734:00 | (See DTC P0734-00: .) |
| P0735:00 | (See DTC P0735-00: .) |
| P0736:00 | (See DTC P0736-00: .) |
| P073D:00 | (See DTC P073D-00: .) |
| P0741:00 | (See DTC P0741-00: .) |
| P0743:00 | (See DTC P0743-00: .) |
| P0746:00 | (See DTC P0746-00: .) |
| P0748:00 | (See DTC P0748-00: .) |
| P0751:00 | (See DTC P0751-00: .) |
| P0752:00 | (See DTC P0752-00: .) |
| P0753:00 | (See DTC P0753-00: .) |
| P0756:00 | (See DTC P0756-00: .) |
| P0757:00 | (See DTC P0757-00: .) |
| P0758:00 | (See DTC P0758-00: .) |
| P0761:00 | (See DTC P0761-00: .) |
| P0762:00 | (See DTC P0762-00: .) |
| P0763:00 | (See DTC P0763-00: .) |
| P0766:00 | (See DTC P0766-00: .) |
| P0767:00 | (See DTC P0767-00: .) |
| P0768:00 | (See DTC P0768-00: .) |
| P0771:00 | (See DTC P0771-00: .) |
| P0772:00 | (See DTC P0772-00: .) |
| P0773:00 | (See DTC P0773-00: .) |
| P0780:00 | (See DTC P0780-00: .) |
| P0819:00 | (See DTC P0819-00: .) |
| P0842:00 | (See DTC P0842-00: .) |
| P0843:00 | (See DTC P0843-00: .) |
| P0847:00 | (See DTC P0847-00: .) |
| P0848:00 | (See DTC P0848-00: .) |
| P0872:00 | (See DTC P0872-00: .) |
| P0873:00 | (See DTC P0873-00: .) |
| P0877:00 | (See DTC P0877-00: .) |
| P0878:00 | (See DTC P0878-00: .) |
| P0882:00 | (See DTC P0882-00: .) |
| P0883:00 | (See DTC P0883-00: .) |
| P1728:00 | (See DTC P1728-00: .) |
| P1738:00 | (See DTC P1738-00: .) |
| P1783:00 | (See DTC P1783-00: .) |
| P1784:00 | (See DTC P1784-00: .) |
| P2530:00 | (See DTC P2530-00: .) |
| P2855:00 | (See DTC P2855-00: .) |
| U0074:00 | (See DTC U0074-00: .) |
| U0075:00 | (See DTC U0075-00: .) |
| U0100:00 | (See DTC U0100-00: .) |
| U0115:00 | (See DTC U0115-00: .) |
| U0121:00 | (See DTC U0121-00: .) |
| U0131:00 | (See DTC U0131-00: .) |
| U0140:00 | (See DTC U0140-00: .) |
| U0155:00 | (See DTC U0155-00: .) |
| U0401:00 | (See DTC U0401-00: .) |
| U212C:00 | (See DTC U212C-00: .) |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.