What does P0956 Mean? The Transmission Control Module (TCM) monitors the Auto Shift Manual signal from the Auto Shift Manual Switch. The TCM sets the OBDII code when the signal from the Auto Shift Manual Switch is not to factory specifications. engine code P0956P0956 fixobd P0956dtc P0956obd code P0956obd2 P0956P0956 car codediagnostic code P0956car code P0956check engine code P0956fehlercode P0956P0956 fiatcodigo P0956codigo falla P0956P0956 kody b??dówcodigo de falla P0956 What are the common causes of P0956 ? A large air leak at or near the number one oxygen sensor would also cause a lean mixture. Faulty IMRC actuator relay (if equipped) Dirty air cleaner element Damaged DPF How do you troubleshoot P0956 ? While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P0956 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools. Searches related to P0956 Code - Auto Shift Manual Mode Circuit Range/Performance P0956 P0957
