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Damper Motor Limit Position Self-Adjustment

NOTE: During self-adjustment program, control module runs damper motors to their limit positions. It then stores value returned from position sensor and can control motor between limit positions during normal system operation.

Damper motor limit position self-adjustment is necessary after replacing ECC control module or damper motor, or after disconnecting damper motor or linkage. Green LED indicator in A/C switch will flash until self-adjustment of new ECC control module has been completed. An old ECC control module will cause Green indicator LED on A/C switch to flash only when it is self-adjusting.

Start engine and let idle. Use ADJUST MOTORS function on scan tool to activate self-adjusting on damper motors. This procedure takes about 30 seconds. When self-adjustment is complete, Green LED will stop flashing.

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