What does E0 mean?
Defrost (evaporator) sensor signal is open.
Common causes
- Failed defrost sensor
- Loose harness
- Wire damage from ice
Diagnostic & testing steps
- 1. Defrost evaporator coil
- 2. Test sensor (~10K at 32°F)
- 3. Reseat harness
- 4. Replace sensor
OEM parts & part numbers
Defrost Sensor
Part numbers: 0530014020
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