Powertrain, generic (extended)

P2871 Clutch A Performance/Stuck Disengaged

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P2871 means clutch A does not close, or slips so much that it behaves as if open. Mitsubishi documents this for the clutch in the front transaxle of the 2023 Outlander PHEV, which links the engine to the wheels in parallel mode: once parallel mode has been active for 2 s, the PHEV-ECU counts how often the speeds before and after the clutch differ by 75 rpm or more for 2 s, and after eight such events the code sets and the MIL lights. Mitsubishi points to a worn clutch, low fluid, a leaking or contaminated valve body, the oil pump, pressure regulator or relief valve, and very low ambient temperature. Volvo also stores P287100 in the rear-axle inverter of its T8 hybrids and clears it with IEM software.

Likely causes

Worn clutch A that slips under load
Low transaxle fluid or external leak
Valve body, oil pump, pressure regulator or relief valve not supplying pressure
Control unit fault or outdated software

Symptoms

  • Engine cannot drive the wheels directly, only series or electric drive
  • Engine speed rises without extra thrust
  • MIL on

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–6,000
Time0–10 h

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

Parts involved

clutch aclutch actuator avalve body

Related codes

P2872P2879P286DP2857P07A2

References: mitsubishitechinfo.com, mitsubishitechinfo.com, static.nhtsa.gov.