B0363

DTC B0361 Left Actuator Feedback Short To GND:

DTC B0363 Left Actuator Feedback Open:

CIRCUIT DESCRIPTION
The heater-A/C control receives a left electric actuator position signal from the left electric actuator. The left electric actuator position sensor is a potentiometer that is tied to a 5 V source through circuit 1217 (PNK/BLK) band to ground through circuit 61 (YEL), both from the heater-A/C control. The variable output from the potentiometer feeds back a position signal through circuit 1218 (BRN/WHT) to a pull-up resistor in the heater-A/C control. This signal relates to the position of the left electric actuator. This signal is used in order to determine the necessary drive signal to the left electric actuator motor in order to provide the proper air mix door position.

CONDITIONS FOR SETTING THE DTC
The heater-A/C control performs an internal check on the left electric actuator position and determines that circuit 1218 (BRN/WHT) is open.

ACTION TAKEN WHEN THE DTC SETS
The heater-A/C control stores DTC B0363 in memory.

CONDITIONS FOR CLEARING THE DTC
^ An open is no longer present in circuit 1218 (BRN/WHT).
^ Under all fault conditions, the ignition switch must be cycled from on to off, back to on before this DTC can change from current to history.
^ A history DTC will clear after 100 drive cycles if the condition for this malfunction is no longer present.
^ Using a scan tool

DIAGNOSTIC AIDS
Check for an open in circuit 61 (YEL) or circuit 1218 (BRN/WHT). An open in these circuit may cause this DTC to set.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
3. This test checks if the heater-A/C control 5 V supply is getting through circuit 1218 (BRN/WHT).
4. This test checks if the heater-A/C control ground is getting through circuit 61(YEL).