Test D: DTC B1947 Or DTC B2014 - Climate Control A/C Post Evaporator Sensor Circuit Open Or Short To Ground
PINPOINT TEST D: DTC B1947 OR DTC B2014 - CLIMATE CONTROL A/C POST EVAPORATOR SENSOR CIRCUIT OPEN OR SHORT TO GROUNDNormal Operation
Under normal operation, the evaporator temperature sensor receives a ground from the HVAC module - dual automatic temperature control (DATC) through circuit RH111 (GY/BU)/(BK). A 5-volt reference voltage is supplied to the evaporator discharge air temperature sensor from the HVAC module - DATC through circuit VH406 (VT/BN)/(LG/BK).
- DTC B1947 Climate Control A/C Post Evaporator Sensor Circuit Short To Ground - The module senses excessive voltage drop on the sensor reference voltage circuit, indicating a short directly to ground.
- DTC B2014 Climate Control A/C Post Evaporator Sensor Open Circuit - The module senses no voltage drop on the sensor reference voltage circuit, indicating an open circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Evaporator temperature sensor
- HVAC module - electronic manual temperature control (EMTC) or HVAC module - DATC
D1-D3:
D4-D5:
