DESCRIPTION Each unit of the navigation system connected to the AVC-LAN (communication bus) transfers the switch signals using the AVC-LAN. If a short to +B or short to ground occurs in the AVC-LAN, the navigation system will not function normally because communication is not possible. WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT HINT: The navigation receiver assembly is the master unit. PROCEDURE
![]() (a) for Column Shift Type: (1) Remove the navigation receiver assembly with the connector(s) still connected (See page
(b) for Floor Shift Type: (1) Remove the navigation receiver assembly with the connector(s) still connected (See page
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Disconnect the J135 navigation receiver assembly connector. (b) Disconnect the J141 stereo component amplifier assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Disconnect and reconnect each slave unit one by one until the master unit returns to normal operation. HINT:
OK: Master unit returns to normal operation. Result
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Toyota Tundra Service Manual > Refrigerant(for Hfo-1234yf(r1234yf)): Replacement
REPLACEMENT PROCEDURE 1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (a) Start the engine. (b) Operate the cooler compressor under the conditions shown below: Item Condition Operating Time 3 minutes or more Temperature setting Max cool Blower speed High Engine Idling A/C switch On This causes most ...