Code Definition

P1309 — Chassis Acceleration Sensor Signal High

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Kia

About P1309

P1309 is a manufacturer-specific powertrain diagnostic trouble code recorded for Kia vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1309 is stored, the module has detected a signal or supply voltage higher than the expected operating range; and a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1309 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The chassis acceleration sensor, or G sensor, measures vehicle acceleration forces and returns a voltage signal to the control module that manages systems such as all wheel drive torque distribution or vehicle stability. DTC P1309 sets when the module sees the acceleration sensor signal voltage stay above the normal operating range, a high signal that does not return to its expected rest value or track vehicle motion. A signal stuck high is typically caused by a short to the reference or supply voltage, an open ground, or a failed sensor biased high. When the code is set the affected system ma...

Join TaT to view the complete code information and diagnostic details.

Quick Facts