P07F5Transmission Range Control Module System Voltage Low
- Generic OBD-II code · Powertrain
- Can trigger limp mode
- How the car detects it
- The transmission range control module is the separate shift-by-wire control unit that reads the selector and drives the range actuator. P07F5 means its supply voltage is too low. No manufacturer document available to us uses the generic code, but GM checks exactly this under its own P17B0: battery voltage at the range control module at or below 9 V for 5 s within a 6 s window, type C without MIL. With too little voltage the actuator may not set the range or park pawl reliably; GM also suspends further checks of the module. A weak battery or a resistance in the module's fuse, supply or ground is the usual cause.
- What you may notice
- Shift warning
- Range or park lock reacts late or not at all
- Often together with battery voltage codes
- Likely causes
- LikelyWeak battery or charging system
- PossibleFuse, supply or ground wire of the module with high resistance
- RareHigh actuator motor current on a weak supply
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.