What Does P0529 Mean? The PCM has detected an incorrect amount of voltage (high or low) in the electric cooling fan control circuit. engine code P0529P0529 fixobd P0529dtc P0529obd code P0529obd2 P0529P0529 car codediagnostic code P0529car code P0529check engine code P0529fehlercode P0529P0529 fiatcodigo P0529codigo falla P0529P0529 kody b??dówcodigo de falla P0529 What are the common causes of P0529 ? A large air leak at or near the number one oxygen sensor would also cause a lean mixture. Faulty IMRC actuator relay (if equipped) Faulty IMRC actuator/sensor How do you troubleshoot P0529 ? The engine system, in conjuction with the engine control module (ECM)/powertrain control module (PCM), activates the P0529 code solenoid valve to control oil pressure to the engine mechanism that is installed in the valve system to switch valve timing between Low and High.If the engine solenoid valve has an open or short circuit, a DTC is stored. Searches related to P0529 - Fan Speed Sensor Circuit Intermittent 6.4 powerstroke fan speed sensor p0529 ford code 6.4 powerstroke fan clutch p0528 6.4 powerstroke fan clutch problems p1000 ford