REMOVAL PROCEDURE 1. REMOVE AIR CONDITIONING UNIT (See page 2. REMOVE NO. 3 AIR DUCT SUB-ASSEMBLY
3. REMOVE AIR CONDITIONING AMPLIFIER ASSEMBLY
4. REMOVE BLOWER ASSEMBLY
5. REMOVE NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY
6. REMOVE NO. 1 COOLER THERMISTOR
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Toyota Tundra Service Manual > Sfi System: VC Output Circuit
DESCRIPTION The ECM constantly generates 5 V power from the battery voltage supplied to the +B (BATT) terminal to operate the microprocessor. The ECM also provides this power to the sensors through the VC output circuit. When the VC circuit has a short circuit, the microprocessor in the ECM and sens ...