Powertrain, generic

P0EBC A/C Refrigerant Temperature Sensor A Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0EBC is the general circuit fault of the first refrigerant temperature sensor in the air conditioning loop: the control module gets no usable reading from it and does not narrow the fault down to high or low. Volkswagen lists P0EBC00 for the 2021 ID.4 as an electrical fault of refrigerant temperature sensor 1 in the A/C module (address 0008). There the value comes from G395, a combined pressure and temperature sender on the low-pressure line, and bulletin 87-22-01 cures it by replacing that sender, which means draining and recharging the refrigerant. The A/C may stop cooling. Voltage faults of the same sensor are P0EBD and P0EBE, plausibility is P0EBF.

Likely causes

Internal electrical fault of the refrigerant pressure/temperature sender (VW G395)
Corroded connector or damaged wiring to the sensor
Faulty sensor input in the climate control module

Symptoms

  • Air conditioning inoperative or not cooling
  • Fault entry stored in the climate control module

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€120–450
Time1–2.5 h

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

Parts involved

ac refrigerant temp sensor ahvac control modulewiring harness

Related codes

P0EBDP0EBEP0EBFP0EC1P0530

References: static.nhtsa.gov, static.nhtsa.gov, law.cornell.edu.