Powertrain, generic (extended)

P2EBE Crankcase Temperature Sensor Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P2EBE reports a crankcase temperature signal below the lowest voltage the circuit can produce when intact. In practice a short is behind it: either the signal lead has rubbed through to ground on the engine block, or the insulation inside the sensor has given way, for instance after oil has crept into the housing. If the sensor is an NTC thermistor, a low voltage stands for great heat, so the module would believe the crankcase is overheating; a PTC element would appear frozen. No manufacturer publishes this code. The reading matters because systems such as Ford's crankcase heating in US9228557 use it to judge whether warm air arrives. CARB's 13 CCR 1968.2 keeps the low fault apart from P2EBD (section (e)(15.2.1)). The engine itself usually runs on unchanged.

Likely causes

Signal wire chafed through to ground on the engine
Sensor shorted internally after oil ingress
Faulty input stage in the engine control module

Symptoms

  • Check engine lamp on
  • Live data shows an implausible crankcase temperature
  • Crankcase heating or ventilation checks suspended

Repair estimate

DifficultyEasyDIY possible
Parts and labour€40–250
Time0.3–1.5 h

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

Parts involved

crankcase temperature sensorwiring harnessecm

Related codes

P2EBBP2EBCP2EBD

References: en.wikipedia.org, image-ppubs.uspto.gov, law.cornell.edu.