DESCRIPTION The main body ECU (multiplex network body ECU) detects a high beam headlight illumination request signal of the automatic high beam system from the forward recognition camera.
WIRING DIAGRAM 
PROCEDURE
(a) Check the forward recognition camera system. Click here
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Toyota Tundra Service Manual > Automatic Transmission System: Transmission Fluid Temperature Sensor "A" Circuit Low Input (P0712,P0713)
DESCRIPTION Refer to DTC P0711 (See page ). DTC Code DTC Detection Condition Trouble Area P0712 ATF temperature sensor resistance is below 79 Ω for 0.5 sec. or more (1-trip detection logic). Short in ATF temperature sensor circuit ATF temperature sensor ECM P0713 ATF temperature sensor resistance i ...
