C1223 — OBD-II trouble code

A chassis OBD-II trouble code. Below are the vehicles and failure patterns where owners report it, drawn from NHTSA complaints.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite C1223 across 6 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report C1223 6 patterns

2008 Toyota RAV4

steering — Power steering loss or electrical failure

2006 Toyota 4Runner

suspension — Excessive vibration and handling instability

2006 Toyota Sequoia

cruise control — VSC/TRAC system spurious activation with brake grinding

2006 Toyota Sequoia

brakes — ABS/VSC warning lights with loss of braking power

2005 Toyota Sequoia

cruise control — VSC/Skid Control ECU Malfunction with Sudden Brake Engagement

2005 Toyota Sequoia

brakes — VSC/ABS Skid Control ECU Failure

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →