Test G: The Air Inlet Door Is Inoperative

PINPOINT TEST G: THE AIR INLET DOOR IS INOPERATIVE

G1:

G2-G3:

G4-G7:

G7-G9:

G10-G11:

Normal Operation
Under normal operation, the air inlet door actuator motors are supplied voltage or ground on circuit CH202 (BU/GN), depending on desired actuator rotation, by the electronic manual temperature control (EMTC) module or electronic automatic temperature control (EATC) module. The EMTC module or EATC module then supplies the appropriate voltage or ground to the other side of the actuator motor on circuit CH203 (GN/BN).

Possible Causes
- An open, short to voltage, ground or together in circuits CH202 (BU/GN) or CH203 (GN/BN)
- Air inlet door actuator
- EATC module
- EMTC module
- Stuck or bound linkage or door