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INSPECTION PROCEDURE 1. CHECK RADIO RECEIVER POWER SOURCE CIRCUIT a. Refer to the RADIO RECEIVER POWER SOURCE CIRCUIT . If the power source circuit is operating normally, proceed to the next step. 2. INSPECT RADIO RECEIVER a. Disconnect the K4 and K22* receiver connectors. b. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION Result: RESULT REFERENCE B: REPLACE RADIO RECEIVER (see REMOVAL ) C: REPLACE RADIO RECEIVER (see REMOVAL ) NOTE: Before starting troubleshooting, be sure to clear DTCs to erase codes The radio receiver is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to NOTE: Be sure to read the DESCRIPTION before performing the following procedures. Tester Connection Condition Specified Condition K4-5(ATX+) - K4-15 (ATX-) Always 60 to 80 ohms K22-9(TXM+) - K22-10 (TXM-)* Always 60 to 80 ohms HINT: Result Proceed to OK A NG (for Column Shift Type) B NG (for Floor Shift Type) C
2009 Toyota Tundra 2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra
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