C1AC2 Lexus Code - Slave Module Horizontal Axis Misalignment

The C1AC2 code indicates a "Slave Module Horizontal Axis Misalignment," meaning the vehicle's parking assist ECU has detected a misalignment or calibration issue with the slave module's horizontal axis.

Symptoms may include malfunctioning parking assist features, inaccurate sensor readings, or warning messages related to the parking assist system on the dashboard.

The code is often triggered by improper installation of the parking assist sensors, physical damage to the sensors, misaligned components, or an unsuccessful calibration process.

To fix this code, check the alignment and installation of the parking assist sensors, repair or replace any damaged components, and perform a recalibration of the system using a scan tool.

Yes, you can drive your Lexus, but the parking assist system may not work properly, which could affect safety when parking or navigating tight spaces.

A technician will use an OBDII scan tool to retrieve the code, visually inspect the parking assist sensors, check for physical damage or misalignment, and verify the calibration of the system.

Yes, you’ll need a compatible OBDII scan tool to clear the code and recalibrate the parking assist system after addressing any physical alignment or sensor issues.

Ignoring the code may result in continued malfunction or inaccurate operation of the parking assist system, potentially leading to parking difficulties or minor collisions.

Severe weather, such as heavy rain or snow, can temporarily affect sensor performance, but persistent issues are more likely due to physical misalignment or damage.

While not extremely common, the C1AC2 code may occur in Lexus vehicles equipped with advanced parking assist systems, particularly if sensors are improperly installed or damaged.