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Toyota Truck
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2003
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Highlander 2WD V6-3.0L (1MZ-FE)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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B Code Charts
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B1221
B1221
DTC B1221 POWER WINDOW SWITCH CIRCUIT ON DRIVER DOOR
CIRCUIT DESCRIPTION
DTC Detecting Condition:
This DTC is output when any switch of the power window regulator master switch assembly (door ECU) is ON.
Step 1:
INSPECTION PROCEDURE