Test E: DTC B2826 or DTC B2827 - Evaporator Temperature Sensor Open Circuit or Short to Ground

PINPOINT TEST E: DTC B2826 OR DTC B2827 - EVAPORATOR TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND

E1:

E1-E3:

E3-E5:

E5-E7:

Normal Operation
Under normal operation, the evaporator discharge air temperature sensor receives a ground from the electronic automatic temperature control (EATC) module through circuit RH111 (GY/BU). A 5-volt reference voltage is supplied to the evaporator discharge air temperature sensor from the EATC module through circuit VH406 (VT/BN).

Possible Causes
- An open in circuit RH111 (GY/BU) or VH406 (VT/BN)
- A short to ground in circuit VH406 (VT/BN)
- An short together in circuit RH111 (GY/BU) and VH406 (VT/BN)
- Evaporator discharge air temperature sensor
- EATC module