Operation CHARM: Car repair manuals for everyone.

Blend Overcurrent (Active)

Tests 1 - 3:




SYMPTOM
BLEND OVERCURRENT (ACTIVE)

WHEN MONITORED
When actuator movement is requested.

SET CONDITION
All (Blend, Mode, Recirc, and Zone) Overcurrent DTCs will set if the A/C Heater Control Module detects an excessive current draw on the Common Door Drive circuit(s).

POSSIBLE CAUSES
- Door driver circuit(s) shorted low
- Door driver circuit(s) shorted high
- Door actuator(s) shorted
- A/C - heater control module