C0552 indicates that the longitudinal acceleration sensor is reporting a signal that is outside its expected range or fails a plausibility check. This sensor measures forward and rearward acceleration for the ABS, traction-control, and electronic stability-control systems. A stored code typically disables those stability aids until the fault is repaired.
The sensor element can wear, crack, or drift out of calibration, producing an out-of-range or implausible signal. This is the most common direct cause of C0552.
Corroded, bent, backed-out, or moisture-contaminated terminals, or chafed power, ground, or signal wires, can distort the sensor signal and set a range/performance code.
If the sensor bracket is loose, bent, or installed at the wrong angle, or if the system was never calibrated after suspension or sensor service, the control module may reject the readings.
Significant ride-height changes, collision repairs, or added components can alter sensor alignment and pitch, making longitudinal acceleration data appear implausible.
A rare internal failure in the ABS/ESC module can misinterpret or fail to process a valid sensor signal. This should be considered only after the sensor, wiring, mounting, and calibration have been ruled out.
Usually yes, but traction and stability control may be disabled. Drive cautiously, especially on slippery roads, and have the system diagnosed promptly.
You can clear it for testing, but C0552 will generally return if the sensor, wiring, mounting, or calibration problem is still present.
No. C0552 is a chassis/sensor code for the ABS or stability-control system, not the engine computer. PCM/ECM replacement is not appropriate for this fault.
Usually not. Most cases are caused by the sensor itself, wiring or connector issues, or calibration problems. Module replacement should only be considered after everything else has been verified.