DESCRIPTION The LIN communication of the components related to the mirror heater occurs between the air conditioning amplifier assembly and air conditioning control assembly. WIRING DIAGRAM  CAUTION / NOTICE / HINT NOTICE: When using the Techstream with the ignition switch OFF to troubleshoot: Connect the Techstream to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the tester and vehicle begins. PROCEDURE
(a) Disconnect the J127 air conditioning control assembly connector. (b) Disconnect the J19 air conditioning amplifier assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(b) Measure the resistance and voltage according to the value(s) in the table below. Standard Resistance:
Standard Voltage:
(a) Temporarily replace the air conditioning control assembly with a new or normally functioning one (See page
(b) Check that the malfunction disappears. OK: Malfunction disappears.
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Toyota Tundra Service Manual > Sfi System: Cold Start Idle Air Control System Performance (P050A)
DESCRIPTION This monitor will run when the engine is started with the engine coolant temperature at -10 to 50°C (14 to 122°F). The DTC will be stored after the engine idles for 13 seconds (2 trip detection logic). The DTC is designed to monitor the idle air control at cold start. When the engine i ...
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