P07F5: Transmission Range Control Module System Voltage Low

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.

Medium severity. Can I keep driving?If the battery warning light comes on, you could get stranded. Turn off electrical accessories and go straight to a repair shop.

Symptoms

Shift warning
Range or park lock reacts late or not at all
Often together with battery voltage codes

Most likely causes

Weak battery or charging system
Fuse, supply or ground wire of the module with high resistance
High actuator motor current on a weak supply

What to check, in order

Start with the simplest. You can tick off each step.

Measure the voltage with the engine off and running
With the connector unplugged, check whether the signal wire is making contact with ground.
Clean and tighten the terminals
Check the accessory belt
Run a battery load test
Check the alternator wiring

Good to know

Repair difficulty: easy
It can trigger limp mode.

What each character of P07F5 means

P: Powertrain: engine and transmission
0: Generic code: same on every make
7: Transmission
F5: Specific fault in that system

Frequently asked questions

Can I keep driving with code P07F5?

If the battery warning light comes on, you could get stranded. Turn off electrical accessories and go straight to a repair shop.

What causes code P07F5?

The most common causes are: weak battery or charging system; fuse, supply or ground wire of the module with high resistance; high actuator motor current on a weak supply.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.