INSPECTION PROCEDURE 1. INSPECT BACK DOOR POWER WINDOW REGULATOR SWITCH ASSEMBLY 
(a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the back door power window regulator switch assembly. Text in Illustration
(b) Check that the LED illuminates. (1) Apply battery voltage to the back door power window regulator switch assembly and check that the LED illuminates. OK:
If the result is not as specified, replace the back door power window regulator switch assembly. 2. INSPECT BACK DOOR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Power Slide Type) 
(a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the back door power window regulator switch assembly. (b) Check that the LED illuminates. (1) Apply battery voltage to the back door power window regulator switch assembly and check that the LED illuminates. OK:
If the result is not as specified, replace the back door power window regulator switch assembly. Text in Illustration
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Toyota Tundra Service Manual > Pre-collision System: Front Camera Module Circuit (C1AA0)
DESCRIPTION The millimeter wave radar sensor assembly receives information about the area in front of the vehicle from the forward recognition camera. If the millimeter wave radar sensor assembly detects a malfunction in the forward recognition camera, it will store DTC C1AA0. DTC No. Detection Item ...
