P2AF8: Starter Relay D Control Circuit Low

P2AF8 is logged when the control line of starter relay D shows a short to ground. Depending on whether the module switches the coil on its ground side or its supply side, the relay then either sits permanently energised or can no longer be operated. Stellantis lists P2AF8 in STAR case S2108000038 for the 2020–2021 Chrysler Pacifica, among codes such as U0100 and P0627 that arose from spread or bent terminals in the power distribution centre connectors, together with no-start and many electrical complaints; which relay the code covers there is not stated. Beyond that no maker publishes a set condition. For comparison, GM flags 0.5 Ω or less to ground on its starter relay outputs after 8 failures in 10 samples. P2AF7 covers the open line, P2AF9 the short to voltage.

Medium severity. Can I keep driving?If it starts normally you can keep driving, but avoid stopping anywhere you could not get help, because it might not restart.

Symptoms

No start or no crank
Several unrelated electrical faults at the same time
Stop-start unavailable

Most likely causes

Spread or bent terminals in the power distribution centre connector
Control wire shorted to ground
Shorted relay coil

What to check, in order

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

Check the battery voltage
With the connector unplugged, check whether the signal wire is making contact with ground.
Try another key, if you have one
Check the fuses and the starter relay
Check the wiring and the signal to the starter motor

Good to know

Repair difficulty: medium

What each character of P2AF8 means

P: Powertrain: engine and transmission
2: Generic code: same on every make
A: Hybrid or air and fuel
F8: Specific fault in that system

Frequently asked questions

Can I keep driving with code P2AF8?

If it starts normally you can keep driving, but avoid stopping anywhere you could not get help, because it might not restart.

What causes code P2AF8?

The most common causes are: spread or bent terminals in the power distribution centre connector; control wire shorted to ground; shorted relay coil.

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.