Powertrain, generic · Fuel and air metering, auxiliary emission controls

P00DA Ambient Air Temperature Sensor Circuit B Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

Ambient air temperature sensor B is a second, separate ambient temperature circuit in addition to sensor A. What the second measuring point is used for in a given vehicle could not be documented; the value may be wired directly to the control module or come over the data bus. Regulations require monitoring of such inputs because ambient temperature is often an enabling condition for other diagnostics. None of the manufacturer documents searched uses these codes; the explanation follows sensor A. P00DA: This is a plausibility fault: after a long standstill the reading is compared with other temperatures, which should then agree.

Likely causes

Sensor in a heat-affected position (engine, sun)
Comparison sensor faulty
Sensor drifting
Control module faulty

Symptoms

  • Wrong or missing outside temperature display
  • Climate control regulates incorrectly
  • Check engine light on (manufacturer-dependent)

Repair estimate

DifficultyEasyDIY possible
Parts and labour€50–150
Time0.3–1 h

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

Parts involved

ambient air temperature sensor bambient air temperature sensor wiring

Related codes

References: law.cornell.edu, gsi.ext.gm.com, fordservicecontent.com.