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a. Repair or replace the air conditioning harness. 4. CHECK FOR DTC a. Clear the DTC (see DTC CHECK/CLEAR ). b. Check for DTC (see DTC CHECK/CLEAR ). OK: DTC is not output. NG: REPLACE AIR CONDITIONING AMPLIFIER (See REMOVAL ) OK: END DTC B1499/99 MULTIPLEX COMMUNICATION CIRCUIT DESCRIPTION This DTC outputs when CAN communication error is occurred. DTC DETECTION CONDITION CHART INSPECTION PROCEDURE 1. CHECK FOR DTC a. Clear the DTC (see DTC CHECK/CLEAR ). b. Check for the DTC (see DTC CHECK/CLEAR ). Result RESULT REFERENCE B: USE SIMULATION METHOD TO CHECK (See HOW TO PROCEED WITH A: GO TO CAN COMMUNICATION SYSTEM (See PRECAUTION ) BLOWER MOTOR CIRCUIT DESCRIPTION DTC DTC Detection Condition Trouble Area B1499/99 Open in CAN communication CAN communication system Result Proceed to DTC B1499/99 is output A DTC B1499/99 is not output B
2009 Toyota Tundra 2009 HVAC Air Conditioning - Tundra
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