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Most Common Chassis Systems (C-Codes)

Top trouble codes in this system, by visitor frequency.

Diagnostic Guides for Chassis Systems (C-Codes)

Free step-by-step guides written to professional diagnostic standards.

C1A05 Toyota Avalon – Stop Light Switch Circuit

0 views 2026-05-31

C1A05 Toyota Highlander – Stop Light Switch Circuit

0 views 2026-05-31

C1A05 Toyota Prius – Stop Light Switch Circuit

0 views 2026-05-31

C1A06 Toyota Avalon – Stop Light Switch Input Circuit

0 views 2026-05-31

C1A06 Toyota Highlander – Stop Light Switch Input Circuit

0 views 2026-05-31

C1A06 Toyota Prius – Stop Light Switch Input Circuit

0 views 2026-05-31

C1A0A Toyota Avalon – Front Radar Sensor Region Code Mismatch

0 views 2026-05-31

C1A0A Toyota Corolla – Front Radar Sensor Region Code Mismatch

0 views 2026-05-30

C1A0A Toyota Highlander – Front Radar Sensor Region Code Mismatch

0 views 2026-05-31

C1A0A Toyota Prius – Front Radar Sensor Region Code Mismatch

0 views 2026-05-31

C1A0A Toyota RAV4 – Front Radar Sensor Region Code Mismatch

0 views 2026-05-30

C1A0A Toyota Sienna – Front Radar Sensor Region Code Mismatch

0 views 2026-05-31

C1A0C Toyota Prius – Object Recognition Camera Region Code Mismatch

0 views 2026-05-31

C1A10 Toyota Avalon – Front Radar Sensor

0 views 2026-05-31

C1A10 Toyota Corolla – Front Radar Sensor

0 views 2026-05-30

C1A10 Toyota Highlander – Front Radar Sensor

0 views 2026-05-31

C1A10 Toyota Prius – Front Radar Sensor

0 views 2026-05-31

C1A10 Toyota RAV4 – Front Radar Sensor

0 views 2026-05-30

C1A10 Toyota Sienna – Front Radar Sensor

0 views 2026-05-31

C1A11 Toyota Avalon – Front Radar Sensor Incorrect Axial Gap

1 views 2026-05-31

C1A11 Toyota Corolla – Front Radar Sensor Incorrect Axial Gap

0 views 2026-05-30

C1A11 Toyota Highlander – Front Radar Sensor Incorrect Axial Gap

0 views 2026-05-31

C1A11 Toyota Prius – Front Radar Sensor Incorrect Axial Gap

0 views 2026-05-31

C1A11 Toyota RAV4 – Front Radar Sensor Incorrect Axial Gap

0 views 2026-05-30

C1A11 Toyota Sienna – Front Radar Sensor Incorrect Axial Gap

0 views 2026-05-31

C1A14 Toyota Avalon – Front Radar Sensor Beam Axis Not Adjusted

0 views 2026-05-31

C1A14 Toyota Corolla – Front Radar Sensor Beam Axis Not Adjusted

0 views 2026-05-30

C1A14 Toyota Highlander – Front Radar Sensor Beam Axis Not Adjusted

0 views 2026-05-31

C1A14 Toyota Prius – Front Radar Sensor Beam Axis Not Adjusted

0 views 2026-05-31

C1A14 Toyota RAV4 – Front Radar Sensor Beam Axis Not Adjusted

0 views 2026-05-30

C1A14 Toyota Sienna – Front Radar Sensor Beam Axis Not Adjusted

0 views 2026-05-31

C1A16 – Radar stain (Component or system operation obstructed or blocked) (Nissan)

20 views 2026-04-10

C1A20 Toyota Prius – Object Recognition ECU

0 views 2026-05-31

C1A22 Toyota Prius – Object Recognition Camera Incorrect Axial Gap

0 views 2026-05-31

C1A23 Toyota Prius – Object Recognition Camera Initialization Incomplete

0 views 2026-05-31

C1A40 – Powertrain system failure (Lexus)

9 views 2026-04-03

C1A40 Toyota Avalon – ENG / EHV Device

0 views 2026-05-31

C1A40 Toyota Highlander – ENG / EHV Device

0 views 2026-05-31

C1A40 Toyota Prius – ENG / EHV Device

1 views 2026-05-31

C1A41 Toyota Avalon – Brake Request Value Mismatch between ENG / EHV and Driving Support ECU

0 views 2026-05-31