Powertrain, generic (extended)

P2AF6 Starter Relay C Stuck Off

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modeNo

P2AF6 is the reverse fault on relay C: commanded to switch, the relay does not change state. Stellantis names it Starter Relay 3 Stuck Off, on some Wagoneers Dual Starter Relay Stuck. During an auto-start the PCM energises the relay to split the batteries; if it then finds hardly any gap between the auxiliary and the main battery voltages, the relay evidently stayed put, so P2AF6 is stored with MIL and stop-start shuts down. Bulletin 08-138-23 traced it on 2022–2023 Wagoneers to connector D3157A at the power distribution centre that had not clicked fully into place. The RAM 1500 2025 with the 3.0 L Hurricane and stop-start and later Wagoneers got PCM software that lets the permanent code clear. A drained auxiliary battery can also produce false fails.

Likely causes

Power distribution centre connector not fully seated
PCM software needing an update
Depleted auxiliary battery causing a false fail
Power control relay not switching

Symptoms

  • Check engine light on
  • Stop-start disabled
  • Occasional failure to restart after an auto-stop

Repair estimate

DifficultyEasyDIY possible
Parts and labour€0–350
Time0.3–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

starter relay cwiring harnessecm

Related codes

P2AF5P2AF2P2AFBP00FDP26F1

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.