Make: Mazda | Model example: 2010 3 | Avg Mileage: 117433 | Job Number: 483388
Repair Issue:
Transmission Internittently Downshifting At Highway Speeds
Cause:
Transmission control module (TCM) and/or wiring harness
Customer Concern:
Intermittently while cruising at highway speeds, the transmission will downshift in to 3rd gear and the check transmission warning light comes on. Sets a code P0753 indicating an electrical circuit fault of the shift solenoid A. Has a new shift solenoid installed but the code still returns.
Test/Procedure:
Tech Tip:
This applies to a 5 speed automatic transmission. See the attached document for solenoid identification and wiring diagrams.
Important Take-A-Way:
Tech Tip narrows down transmission type and points mechanics to related documentation.
Most Popular Fix:
Replaced/Repaired/Tightened/Adjusted Transmission Control Module (TCM)
Other Common Car Problems:
View more common car problems from the most popular manufactures including Ford, Dodge, Chevrolet, Honda, Toyota, and more. Read more
Also applies to the following Makes and Models
3
Author: Guy Dibble
Guy began his automotive career in 1989. His experience includes working at Isuzu, Mazda, and Subaru dealerships as well as owning and operating an independent shop for two years. Guy grew up in his father’s automotive repair shop in Texas and has been working on cars since he was 14 years old. He went to Texas State Technical College after high school and obtained an Associate’s Degree in Automotive Technology. After tech school he worked in a multi line Japanese car dealership where he became familiar with Mazda, Subaru, Isuzu, Suzuki, Kia and Diahatsu. His specialty carlines were Mazda and Isuzu, both of which he is Master Certified in. He has his ASE Master Tech certification as well as the advanced L1. Outside side of work he enjoys fishing and mountain biking.
Our database continues to grow! Our professional auto repair technicians add new fixes submitted by our Direct-Hit® users. These case studies are confirmed, experience-based fixes directly from technicians and shops. You can find these solutions and more in Direct-Hit®.
"*" indicates required fields