Powertrain, generic (extended)

P2DE6 Drive Motor A Clutch Actuator Performance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

Whereas P2DE4 and P2DE5 describe the clutch end state, P2DE6 judges the actuator that moves the clutch of drive motor A: its circuit is intact, but it acts too slowly, draws implausible current or does not reach the commanded position within the expected time. No manufacturer documents P2DE6 publicly. The closest documented hardware is GM's Corvette E-Ray, whose front electric drive unit combines a 120 kW motor with a clutch pawl and a disconnect clutch actuator commanded by the module that also drives the motor. A BorgWarner patent shows how such an actuator can be judged: the motor current peaks as the sleeve reaches its end position, giving a usable stop signal. CARB lets each maker define the drive motor monitor in an approved plan. Electrical faults of the actuator enable line are P08E7 to P08E9.

Likely causes

Actuator motor or gearing worn, sluggish movement
Increased friction at fork, sleeve or pawl, e.g. from contaminated fluid
Low supply voltage or resistance in the actuator feed
Position switch or sensor reporting late or erratically

Symptoms

  • Warning lamp or drive system message
  • Delayed or jerky coupling of the electric axle
  • Electric drive of that axle temporarily disabled

Repair estimate

DifficultyHardWorkshop job
Parts and labour€150–2,500
Time1–6 h

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

Parts involved

drive motor a clutchdrive motor a clutch actuator

Related codes

P2DE4P2DE5P08E7P08E8P08E9P08ED

References: law.cornell.edu, gm-techlink.com, image-ppubs.uspto.gov, static.nhtsa.gov.