DESCRIPTION The IG circuit is the power source for the tire pressure warning ECU and receiver. WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE:
HINT: Inspect the fuses for circuits related to this system before performing the following inspection procedure. PROCEDURE
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Navigation System: Illumination Circuit
DESCRIPTION Power is supplied to the navigation receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: The vehicle is equipped with a Supplemental Restraint System (SRS) which inclu ...