Powertrain, generic (extended)

P2119 Throttle Actuator A Control Throttle Body Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

This is a mechanical performance check of the electronic throttle body. GM calls it Throttle Closed Position Performance: after the motor is de-energized the return springs must bring the plate into its default (limp) position, e.g. 1.32-1.90 V on TP sensor 1 in GM's 2006 tables; 15 failed samples in a row set it. A Bosch-based GM ECM times the spring return at key-on (fault above 0.56 s). Toyota, Lexus, Ford (Ranger/Bronco, ice behind the throttle) and Mitsubishi use the code too. Unlike P2101 (position error while driven) or P2118 (motor current), P2119 points at a sticking or iced plate or a weak spring; the engine may enter limp mode.

Likely causes

Carbon deposits make the throttle plate stick
Water or ice in the intake behind the throttle body
Weak return spring or worn gear in the throttle body
ECM software that sets the code falsely (update available)

Symptoms

  • Engine warning lamp on
  • Reduced power or limp mode
  • Hesitation or uneven acceleration
  • Raised or unstable idle

Repair estimate

DifficultyMediumDIY possible
Parts and labour€20–700
Time0.5–3 h

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

Parts involved

electronic throttle bodythrottle actuator motorthrottle position sensorecm

Related codes

P2101P2111P2112P2118P2176P0638

References: gsi.ext.gm.com, gsi.ext.gm.com, gsi.ext.gm.com, static.nhtsa.gov.