Powertrain, generic · Computer and auxiliary outputs

P06E9 Engine Starter Performance

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

On cars with stop-start or keyless start the engine module operates the starter relay itself and watches the start: if cranking is commanded but the engine does not turn, turns too slowly or the start is aborted, it sets P06E9. CARB counts an engine start from 150 rpm below warm idle. Thresholds for speed and time are not published. Bulletins show both sides: VW traces P06E9 on the Tiguan to dirt inside the starter that opens its contacts intermittently, and on the Atlas has relays, battery and voltage drop checked; Audi's SQ5 and FCA's Jeep Compass need module software instead. Ford lists P06E9 among the starter faults that disable stop-start.

Likely causes

Starter worn or solenoid contacts intermittently open
Weak battery, voltage drop on main cables or ground
Starter relay or its control
Engine module software

Symptoms

  • Intermittent no-start or only clicking
  • Stop-start not working
  • Check engine light depending on manufacturer (FCA: yes)
  • Long cranking

Repair estimate

DifficultyMediumDIY possible
Parts and labour€50–700
Time0.3–3 h

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

Parts involved

starter motorstarter relaybatteryengine control module

Related codes

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