Control module codes 07E8 and 07E9.
Feb 18, 2022 at 11:28 PM
Codes 07E8 and 07E9
2012 MAZDA 6
KIM GREENLEAF
- MEMBER
- 1 POST
- FOLLOW
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
Advertisement
Hi,
What symptoms are you experiencing? I ask because, although the codes relate to the same module, they have different meanings. A 7E8 engine code indicates a leak in the evaporative emission control system. On the other hand, the 7E9 code is related to the engine powertrain, specifically with the transmission.
I need to know how you retrieved these codes. Also, they are very basic and don't identify the specifics. If you haven't, you should consider scanning the can-bus system. CAN stands for controller area network. Basically, all the modules/computers are tied together via a few wires. This type of scan will identify codes regardless of the module they are stored in.
Here is a link showing how it is done:
https://www.2carpros.com/articles/can-scan-controller-area-network-easy
Let me know if you are able to scan the computer and the codes which are stored.
I will watch for your reply.
Joe
What symptoms are you experiencing? I ask because, although the codes relate to the same module, they have different meanings. A 7E8 engine code indicates a leak in the evaporative emission control system. On the other hand, the 7E9 code is related to the engine powertrain, specifically with the transmission.
I need to know how you retrieved these codes. Also, they are very basic and don't identify the specifics. If you haven't, you should consider scanning the can-bus system. CAN stands for controller area network. Basically, all the modules/computers are tied together via a few wires. This type of scan will identify codes regardless of the module they are stored in.
Here is a link showing how it is done:
https://www.2carpros.com/articles/can-scan-controller-area-network-easy
Let me know if you are able to scan the computer and the codes which are stored.
I will watch for your reply.
Joe
Feb 19, 2022 at 4:06 PM
Advertisement