CAUTION / NOTICE / HINT HINT:
PROCEDURE
(a) Measure the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.
(a) Use the Techstream to check if the CAN communication system is functioning normally. Click here OK: CAN communication system is functioning normally.
(a) Check for DTCs and note any codes that are output. Click here (b) Clear the DTCs. Click here (c) Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs. Click here
HINT: Refer to Problem Symptoms Table. Click here
(a) Terminals of ECU Click here (b) Data List / Active Test Click here
NOTICE:
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Toyota Tundra Service Manual > Window Defogger System: Parts Location
PARTS LOCATION ILLUSTRATION *A for Automatic Air Conditioning System *B for Manual Air Conditioning System *1 BACK WINDOW GLASS *2 ENGINE ROOM RELAY BLOCK, JUNCTION BLOCK - DEFOGGER RELAY (DEF) - DEFOG FUSE - NOISE FILTER *3 DRIVER SIDE JUNCTION BLOCK ASSEMBLY - ECU-IG1 NO. 3 FUSE *4 DLC3 *5 AIR CON ...