Fault code P0716 – a step-by-step guide to diagnosing and fixing it

Error code P0716 is displayed and the check engine light is on - what does this mean?

The OBD system detects an error in the input speed sensor of the automatic transmission. This DTC P0716 indicates a problem with the turbine speed sensor, which monitors the speed of the transmission input side. For various manufacturers, this fault code may also be referred to as "Input/Turbine Speed Sensor Circuit Range/Performance".

What causes can this error code have?

• Defective input speed sensor (turbine speed sensor)
• Damaged or corroded cable connections to the sensor
• Loose or defective plug connections on the sensor
• Dirt or metal chips on the sensor area
• Faulty transmission control unit (TCM)
• Mechanical problems in the transmission (defective gear wheel)
• Low or contaminated transmission fluid
• Internal wiring problems in the transmission

What symptoms occur in parallel with fault code P0716?

• Shifting problems: The automatic transmission shifts irregularly or jerkily
• Emergency running program: The transmission gets stuck in one gear (limp mode)
• Increased fuel consumption: Consumption increases due to inefficient gear changes
• Starting problems: The vehicle starts with a delay or jerks when moving off
• Speed fluctuations: Unusual engine speed at constant speed
• Transmission light: In addition to the engine indicator light, the transmission warning light may come on

How can the problem with error code P0716 be rectified?

• The repair requires a systematic diagnosis, as several components may be affected.
• Sensor replacement: Replace the defective input speed sensor with an original part and replace the seals in the process
• Cable repair: Repair or completely replace damaged cables to the sensor, including checking the plug connections
• Transmission oil change: Change dirty or old transmission fluid completely and replace the filter at the same time
• Clean plug connections: Clean all electrical connections on the sensor and to the control unit and treat with contact spray
• Control unit update: Reprogram the transmission control unit or have it replaced if defective
• Internal transmission repair: In the event of mechanical damage, open the transmission and replace defective gears or sensor rings