P0727

DTC P0727, sometimes indicated as P072700 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the causing engine speed input circuit no signal.

This code is set when the PCM (Powertrain Control Module) does not receive a signal from the engine speed sensor. This sensor is used by the PCM to calculate engine RPM.
Possible causes of this code include a defective engine speed sensor, a wiring issue, or a problem with the PCM.
If this code is causing your vehicle to not start, the first thing you should do is check the engine speed sensor. If it is defective, replace it. If the sensor is okay, check the wiring and connectors to make sure they are all in good condition. If the wiring and connectors are okay, then the problem may be with the PCM. If the PCM is defective, replace it.

• P0727: Engine Speed Input Circuit No Signal
• P0727: Engine Speed Sensor Circuit No Signal
• P0727: Engine RPM input – no signal
• P0727 00: Engine RPM input - no signal
• P0727 00: Damage to the engine / gearbox input system - no signal