P07F5
Transmission Range Control Module System Voltage Low
The range control module reports its supply voltage below the operating threshold — vehicle battery low, charging system underperforming, or supply line resistance excessive. The module may stop responding until voltage recovers.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
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.
- Weak vehicle batteryCommon
Parts involved
- Range Control Module
- Vehicle Battery
P07F5 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.