B -- END (AIR INLET CONTROL SERVO MOTOR WAS DEFECTIVE)
A -- Continue to next step.
4. INSPECT AIR CONDITIONING HARNESS
(a) Replace the air conditioning harness See: Heating and Air Conditioning/Housing Assembly HVAC/Service and
Repair/Overhaul/Disassembly.
HINT
Since the air conditioning harness cannot be inspected while it is removed from the vehicle, replace the air conditioning harness
with a new or a known good one and check that the condition returns to normal.
(b) Check for the DTC.
Result:
B -- END (AIR CONDITIONING HARNESS WAS DEFECTIVE)
A -- REPLACE A/C AMPLIFIER
From 08/2009
HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1442/42: Air Inlet Damper Control Servo Motor Circuit
B1442/42 - Air Inlet Damper Control Servo Motor Circuit
DESCRIPTION
The air inlet control servo motor sends pulse signals to indicate the damper position to the A/C amplifier. The A/C amplifier activates the motor
(normal or reverse) based on these signals to move the air inlet mode selection air inlet control damper to any position, which controls the intake air
settings (FRESH, FRESH/RECIRCULATION, and RECIRCULATION).
The A/C amplifier communicates with the servo through a communication/driver IC and wiring assembly called the air conditioning harness.
HINT
Confirm that no mechanical problem is present because this DTC can be output when either a damper link or the damper is
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