Then, check that the 5-volt reference is getting to the sensor by connecting the red multimeter lead to the reference voltage pin and the other to ground. You should see a reading of about 12 volts indicating a good ground. Next, connect the red multimeter lead to the battery positive terminal and the black lead to the ground pin. Start by consulting the wiring diagram for your vehicle to determine which pin on the connector is which. Hall Effect Sensor: A Hall Effect Sensor has three wires: signal, reference and ground.If instead, your meter reads OL, you have an open circuit and will need to trace the factory wiring diagram. Set your meter to the ohms setting – you should see a value appear on the screen. You can do this by touching one meter lead to the return signal pin on the sensor connector and the other to signal pin on the PCM. Next, check that there is continuity to the PCM. If not, you’ll need to consult the ground side of the wiring diagram to find where the circuit fault lies. Start by consulting the wiring diagram for your vehicle to determine which pin on the connector is signal and which is ground. Permanent magnet sensor: A permanent magnet sensor produces its own voltage, so it will only have two wires going to it – ground and return signal.
If the cam and cranks sensor check out OK, but you still have P0017 code illuminated, you’ll need to check the sensor circuit. When in doubt, remove the cam gear and the crankshaft harmonic balancer and inspect the tone rings. Note that a damaged or improperly aligned tone ring will also prevent proper sensor operation. Cranking the engine, you should see the voltage reading on the meter fluctuate. Attach the black multimeter cable to battery ground. Using your DVOM on the DC voltage setting, back probe the sensor wire. Hall Effect sensor: Using the repair information for your vehicle ( All Data DIY), determine which pin on the sensor connector is the signal return wire.If there is no change in the reading, the sensor is bad and should be replaced. You can also do this with your meter set to read AC voltage. Next, crank the engine and watch the ohmmeter – the reading should fluctuate. Of course, a meter reading of OL measure there is an open in the sensor and it should be replaced. Consult the manufactures repair information from a source such as All Data DIY for the resistance specifications. Remove the sensor connector and attach the meter to the sensor terminals. Permanent magnet sensor: A permanent magnet sensor can be tested using an ohmmeter ( DVOM).Testing the sensor varies slightly, depending on which type of sensor your vehicle uses. So, begin your diagnosis by visually inspecting the sensors and their connections. Many problems can easily be found in the harness and connectors. Perform a visual inspection of the sensors and connections.These including: an engine that runs poorly, an engine that cranks but will not start and an illuminated check engine light. The cam or crank tone ring is slipped/brokenĬode P0017 may be accompanied by several different symptoms.The cam or crank circuit is open or shorted.To sum things up, the common causes for code P0017 are as follows: What are the common causes of code P0017 ? The B sensor is likely on the exhaust side. This code stands for Crankshaft Position – Camshaft Position Correlation (Bank 1 Sensor B). Should the timing be off, the PCM will set a code P0017. The CKP and CMP sensors work together to keep the PCM informed about engine timing. Inside the engine, the crankshaft and camshaft are held together by a timing belt or timing chain, which keeps them synchronized. Hall Effect: uses a reference voltage from the PCM to produce a DC voltage signal.Permanent magnet: creates an AC voltage signal that is proportional to engine speed.The two common CMP and CKP designs are Hall Effect and permanent magnet. This information is used but the PCM to control ignition timing, and in some applications, it is also used to control fuel injection. The crankshaft position sensor (CKP) relays crankshaft position and engine RPM to the PCM, or ignition module. The PCM then uses this information to control the fuel injectors, and on some applications, for ignition timing. It relays this information to the powertrain control module (PCM). The camshaft position sensor (CMP) is used to determine the position of the camshaft(s).
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Wiring, CKP sensor, CMP sensor, mechanical fault Crankshaft position/camshaft position, bank 1 sensor B -correlation