P07F2
Transmission Range Control Module Communication Circuit
General fault on the communication line between the TCM and a separate transmission range control module (used on systems where the rotary/push-button selector lives in its own intelligent module that talks to the TCM via CAN or LIN).
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Common causes
Ordered by how often each turns out to be the cause.
- Bus fault between modulesCommon
- Failed range control modulePossible
- Gateway module routing CAN messages incorrectlyLess likely
Parts involved
- Range Control Module
- Communication Bus
P07F2 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.