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OK: DTC is not output. NG: Go to step 4 OK: END (AIR MIX SERVO MOTOR IS DEFECTIVE) 4. REPAIR OR REPLACE AIR CONDITIONING HARNESS a. Repair or replace the air conditioning harness. 5. CHECK FOR DTC a. Clear the DTC (see DTC CHECK/CLEAR ). b. Check for DTC again (see DTC CHECK/CLEAR ). OK: DTC is not output. NG: REPLACE AIR CONDITIONING AMPLIFIER (See REMOVAL ) OK: END DTC B1442/42 AIR INLET DAMPER CONTROL SERVO MOTOR CIRCUIT DESCRIPTION The air inlet damper servo motor sends pulse signals to inform the air conditioning amplifier of the damper HINT: Confirm that no mechanical problem is present because this diagnostic trouble code can be output when either a DTC DETECTION CONDITION CHART WIRING DIAGRAM DTC DTC Detection Condition Trouble Area B1442/42 Air inlet damper position sensor Air inlet servo motor Air conditioning harness Air conditioning amplifier
2009 Toyota Tundra 2009 HVAC Air Conditioning - Tundra
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