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Home >> Lexus >> 2021 >> IS 350 RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Blind Spot Monitor System - Diagnostic Codes & Circuit Tests >> Blind Spot Monitor System >> DTC C1AC1: Master Module Horizontal Axis Misalignment [04/2013 - 10/2016] >> Description
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DTC C1AC1: Master Module Horizontal Axis Misalignment [04/2013 - 10/2016]: Description

This DTC is stored when the angle of the blind spot monitor sensor LH deviates more than the allowable range from the horizontal axis.

HINT: 

If a drum tester such as a speedometer tester, brake/speedometer combination tester or chassis dynamometer is used with the blind spot monitor main switch (warning canceling switch assembly) on, the blind spot monitor system may store this DTC by mistake.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AC1 Master Module Horizontal Axis Misalignment When the blind spot monitor sensor deviates 5 degrees or more from the horizontal axis when the system is activated Blind spot monitor sensor LH