Powertrain, generic (extended)

P2106 Throttle Actuator Control System - Forced Limited Power

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2106 tells you the throttle control is running in a reduced-power fallback. Ford's 2012 summary lists the reasons on second-generation ETC: loss of the MAF signal, one throttle position sensor, crank position or transmission speed sensors, a stuck throttle or a throttle motor circuit fault; it sets with MIL and wrench lamp, and a crank sensor code (P0320/P0322) also adds P2106. VW's 2014 data book uses it when an internal plausibility check of the engine computer fails. So P2106 almost always appears with another code that names the real defect, and that one is repaired first. The driver notices weak acceleration and a capped top speed. Forced idle is P2104, limited rpm P2110, shutdown P2105.

Likely causes

Failed input such as MAF, throttle position or crank sensor
Sticking throttle or fault in the throttle motor circuit
Failed internal check or software in the engine computer

Symptoms

  • Reduced power, sluggish acceleration
  • Engine and wrench/ETC lamp on
  • Limited road speed

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–800
Time0.5–3 h

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

Parts involved

throttle actuator controlecm

Related codes

P2104P2105P2110P2111P2112P0122

References: newtonnet.co.uk, static.nhtsa.gov, law.cornell.edu.