DIAGNOSIS SYSTEM 1. DESCRIPTION The 4 wheel drive control ECU records DTCs when the ECU detects a malfunction in the ECU itself or in system circuits. The DTCs can be read through the DLC3 of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform troubleshooting. 2. CHECK DLC3 (a) Inspect the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge the battery before proceeding. (b) Check the DLC3 (See page 3. FUNCTION OF INDICATOR LIGHT (a) When a problem occurs in the touch select 2-4 and high-low system, the 4HI and 4LO indicator lights on the combination meter assembly rapidly blink* to inform the driver of the problem.
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Toyota Tundra Service Manual > Window / Glass: Window Defogger Wire(for Crewmax)
On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT BACK WINDOW GLASS (DEFOGGER WIRE) NOTICE: When cleaning the glass, wipe the glass along the wire using a soft, dry cloth. Take care not to damage the defogger wires. Do not use detergents or glass cleaners that have abrasive ingredient ...
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