Code Definition

P1916 — High Clutch Drum Speed Sensor Malfunction

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

About P1916

P1916 is a manufacturer-specific powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1916 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.

P1916 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 P1916 fault code indicates that the Transmission Control Module (TCM) has detected a malfunction in the High Clutch Drum Speed Sensor circuit. This sensor monitors the rotational speed of the high clutch drum, providing critical data for shift timing and transmission operation. A malfunction suggests that the sensor signal is out of range, erratic, or missing, which can impact shift quality and drivability.

Quick Facts