01 How to make a successful business: A long educative story • 02 P0011 A Camshaft Position - Timing Over Advanced or System … • 03 Is There Any Significant Difference Vetween 1.6L and 2.0L E… • 04 Are EVs Really Better for the Environment or Just Marketing? • 05 What Happens When Fuel Burns Inside a Cylinder • 06 Is the Toyota Supra Saying Goodbye? Here's What We Know • 07 Is Your Car Alternator Dying? Symptoms, Causes, and Solutio… • 08 B1075 – Climate Control System Fault: Temperature Regulatio… • 09 People Cannot Believe The Secret Function Of The Small Arro… • 10 Why disc and drum brakes are used in the front and rear res… •

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25D6

P25D6Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Stop Performance

P25D6 indicates that the powertrain control module has detected a performance problem with the stop position of the exhaust bypass valve position sensor in the exhaust heat exchanger circuit. The computer expects the sensor signal to reach a specific learned stop value when the valve is commanded fully closed or open, and the observed signal does not meet that expectation within the allowed time or range.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage