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 > Blind Spot Monitor System: Blind Spot Monitor Slave Module (C1AB7)
DESCRIPTION This DTC is stored when the blind spot monitor sensor LH detects an internal malfunction. DTC Code DTC Detection Condition Trouble Area C1AB7 The blind spot monitor sensor LH (slave) detects an internal malfunction. Blind spot monitor sensor LH CAUTION / NOTICE / HINT NOTICE: When checki ...
