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INSPECTION PROCEDURE HINT: This circuit uses the LIN communication line. Before performing the inspection, check that the LIN 1. PERFORM ACTIVE TEST BY TECHSTREAM (DEFOGGER RELAY) a. Select the Active Test using the Techstream to generate a control command, and then check that the rear window defogger operates. Air Conditioner AIR CONDITIONER - TECHSTREAM TESTER DISPLAY REFERENCE CHART OK: Rear window defogger operates normally. NG: Go to step 3 OK: Go to Next Step 2. CHECK INTEGRATION CONTROL AND PANEL (OPERATION) a. Temporarily replace the integration control and panel with a new or normally functioning one. 1. For Column Shift Type, refer to the following procedures (see INTEGRATION CONTROL AND PANEL (FOR COLUMN SHIFT TYPE) ). 2. For Floor Shift Type, refer to the following procedures (see INTEGRATION CONTROL AND PANEL (FOR FLOOR SHIFT TYPE) ). b. Check that the malfunction disappears. OK: Malfunction disappears. NG: REPLACE AIR CONDITIONING AMPLIFIER (See AIR CONDITIONING AMPLIFIER ) OK: END (INTEGRATION CONTROL AND PANEL IS DEFECTIVE) 3. INSPECT FUSE (DEFOG) a. Remove the DEFOG H-fuse from the engine room relay block. b. Measure the resistance according to the value(s) in the table below. Standard resistance FUSE (DEFOG) TESTER CONNECTION SPECIFIED CONDITION Tester Display Test Part Control Range Diagnostic Note Defogger Relay (Rear) Rear window defogger relay operation OFF or ON - Tester Connection Condition Specified Condition
2009 Toyota Tundra 2009 ACCESSORIES AND EQUIPMENT Windshield/WindowGlass - Tundra
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