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Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. To view the rest of this document requires a subscription.

Click the button below to view the subscription options and to sign up. Service Manual Table of Contents. Loading Framework.

Home All Bulletins Contact. Welcome to RepairProcedures. To view the entire document you need to have a subscription. User Login Email Password Login. No applicable bulletins found. Document Preview. DTC Descr You may preview the service manual table of contents by clicking below. Document Tags. Document Title: DTC P Gasoline diagnostic instructions system procedure relay control circuit information short ground open resistance voltage description ignition switch start position engine starting conditions strtr seconds reference connector testing scan tool test terminal specified range lamp normal replace diagnostic procedure circuit strtr strtr relay ground circuit terminal ground test lamp replace relay control circuit strtr circuit strtr relay seconds ignition switch control module references disconnect strtr relay greater specified range test lamp test lamp test control test control circuit specified range replace range replace relay.In the old days, power flowed through the ignition switch and down to the starter solenoid.

Not anymore. The second relay, the more important of the two, is controlled by the powertrain control module PCM.

Obviously you must have a good battery and clean battery terminals. But then you must have two good fuses in the starting circuit, two good relays, several good fuses to the BCM, good fuses to the PCM, and good grounds all around. Depending on the year, model and engine of your GM vehicle, your starting system may be less complicated or use only some of the components shown here.

The bottom line is you MUST get the wiring diagram for your particular vehicle. Then test the proper fuses, relays, and ground connections. The diagrams will show you where to find all those components in your vehicle. Hey, your mechanic is gonna pull a diagram. Why not save yourself a huge diagnostic fee and test these things yourself? Unlike the cheaper Haynes and Chilton manuals that cover multiple year models, leaving the exact information you need to fix your car, these professional manuals cover your exact year, make, model.

Plus, they contain full trouble code descriptions and troubleshooting instructions.

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Pricing: Eautorepair. So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations.


However, Alldatadiy. If you need to dig into your doors, dash or console, Alldatadiy. Find this article useful? Share it! Tags Buick Cadillac Chevrolet Hummer no click no crank no start no start no crank Pontiac Saturn starting system wiring diagram wiring diagram.This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.

The PCM powertrain control module will store a P code when it detects a voltage reading from the starter relay circuit that is out of range of the acceptable manufacturer settings. When the P code is stored, the most common causes are:.

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After the code is identified, the mechanic will visually inspect the battery cables, the starter relay circuit, and all components, wiring, and connectors associated with it. They will then address any issues with these in a methodical order, and with each step they will clear the code and retest the system to see if the problem has been resolved or not. After going through all diagnostic measures, once they believe that they have solved the problem, they will test the system one last time to see if there is an intermittent issue that may be causing the code to be stored only under certain conditions.

This is an expensive mistake that will not actually solve the problem. Depending on the symptoms that accompany it, the P code may be a fairly benign one, or it may be more serious. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle.

Get a quote and book an appointment online or speak to a service advisor at With YourMechanic you can skip the auto shop altogether. They send certified and screened mechanics straight to your door and enable you to save big on car repair and maintenance.

P0615 – Starter motor relay -circuit malfunction

Cost of diagnosing the P code. No more waiting rooms! Our mechanics will come to you to diagnose and fix the P code. Recent Check Engine Light is on Inspection reviews. Excellent Rating.

Average Rating 4.

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Number of Reviews 5, Rating Summary. Johnathon 8 years of experience. Request Johnathon.Chevrolet Captiva P if your catalytic convertor fails completely, you eventually won't be able to keep the car running.

Your gas mileage will also be terrible, so you should try and fix it as soon as you can. So you should chech it on our car models. The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing.

This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time. If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

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Parts or components should not be replaced with reference to only a P DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. Code Search Please fill the "Code Box" to find engine fault code.

Ways to read engine trouble codes. Ways to clear check engine light on car panel. Check Engine Light Dictionary Ways to clear check engine light on car panel. Main engine trouble code archive on Web.

Copyright EngineTroubleCode. Check engine light comes on Engine stalling or misfiring Engine performance issues Car not starting. If one of these reasons for P code is occuring now you should check P repair processes.

Now don't ask yourself; What should you do with P code? The solution is here :. Then it proh P code.This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. A glow plug helps the vehicle's engine to start by heating itself and the surrounding area. In the vast majority of cases, a P code is caused by a problem directly related to the glow plug itself. The cylinder 5 glow plug may be damaged or faulty.

In very rare circumstances, the P code may be the result of a faulty PCM. However, this should only be considered once all of the likelier possibilities have been exhausted.

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The consequences of a P code generally pertain to starting the engine itself. The engine may take longer to start or misfire. Louder engine noise is also typically reported upon startup. The symptoms of a P may be worse if you're operating the car in particularly cold weather or climate. In addition to the practical symptoms, the P trouble code and illuminated dashboard trouble lamp will be present in order to help the operator or technician pinpoint the root cause more easily.

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Check in and around engine cylinder 5 for any signs of damage or abnormality. Inspect the glow plug itself thoroughly, with particular focus being given to the relay, timer and module components. A glow plug can be tested by removing it from the cylinder and linking it up to independent battery voltage to see how quickly it heats. Any system-related wiring should be inspected as well.

Disconnected, damaged or otherwise faulty wiring related to the cylinder 5 glow plug can result in a P code as well. Although glow plugs themselves are often the cause, they are sometimes mistakenly replaced by overlooking electrical circuit issues. Bad or disconnected wiring can result in the same issues. Electrical wiring should be inspected before investing in any new components.

The malfunction of one glow plug shouldn't disable the engine, but it will increase wear on other components, especially if the vehicle is being used in bad weather or a cold climate.

If there are significant issues with starting the engine, the P should be addressed by a mechanic as soon as possible. Any components relating to the glow plug should be repaired or pre-placed if they've been found out as faulty. Any electrical wiring and circuitry in and around cylinder 5 or relating to the cylinder 5 glow plug should be repaired as needed. Replace any blown fuses and retest the glow plug periodically to see if it lights up.

P0615 - Start Signal Circuit

If fresh fuses keep blowing, look to the electrical circuitry for problems. Following the repairs, the vehicle should be test driven. This will allow you to see whether the trouble code has been solved or not.

The P code is often reported alongside other glow plug-related codes. In the case that multiple glow plug issues have stemmed from a common source, trouble codes should be addressed in the order in which they've been reported.I have code how do fix this? Please help me I love this site. Do you. This can be from a faulty BCM which is common in these cars.

Here is some information from the book: DTC P Circuit Description: The body control module BCMproduces the theft deterrent crank relay and fuel enable signal when ignition is ON and the proper ignition code voltage value is detected. The powertrain control module PCM monitors the fuel enable signal during crank.

If the proper signal is present on the class 2 serial data circuit, the PCM enables the fuel delivery in order to allow the engine to start. The engine continues to start and run as long as DTC P is stored. This information will not be stored as freeze frame data. The DTC can be cleared by using a scan tool. Try to disconnect the battery for ten minutes and then reconnect it to see what happens it could reset.

If the problem then returns the BCM is bad here is its location you will need a shop to program it for you. Below Let me know Cheers Image Click to enlarge. Was this answer. I had to replace transmission on this car. So I move the engine so I can get to transmission and got it back together and know it will not start by key to start. All it will do is no sound from starter.

It will start is if I go under car it will run about four seconds and shut off.

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So I put my snap on scanner on it it has codeu, code is theft deterrent system fuel is disable u How do I get it running? Is there a way to get it running by key learning? I have tried key in for ten minutes and pull key out for less then twenty seconds and do it again. Is there something I am missing or is there a way I can bypass the system? Can you tell me the right way to program it by key to learn?

I found my problem and got more information on my car. I was told if the battery drains all the time if you have to get it jump or your headlights goes on by its flashes or interior lights do not work it will be BCM body control module this some sign of BCM is gone or going out.

This car is well known for BCM problem. I hope this will help others. Great addition to this thread! Please feel free to help out whenever you are on the site : Cheers, Ken Was this answer.

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Please login or register to post a reply.P engine code for Chevrolet Silverado provides below are generic codes that may not apply to all vehicles. A good ground connection is also extremely important. P engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit.

Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance any resistance will lower circuit voltage. Starting letter P diagnostic code shows that there are problems in engine, transmission and emissions systems. If your vehicle is an older model with a non-electronic Computer And Auxiliary Outputs, you can check the distributor cap to see whether the spark is getting from there to the coil and on to the spark plugs.

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Don't forget! If your P engine code not resolved on and there are trouble codes in your computer, your vehicle will not pass an OBD 2 emissions test.

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The light must be off and there must be no codes in memory to pass an OBD 2 emissions test. In addition, all of the OBD II self-monitors that check for faults must have run and completed without finding any further problems to pass the test. Copyright - EngineDiagnosticCode. Code Search Please fill the "Code Box" to find engine fault code. P Engine Diagnostic Code For Chevrolet Silverado P engine code for Chevrolet Silverado provides below are generic codes that may not apply to all vehicles.

How to fix P engine diagnostic code For Chevrolet Silverado ?


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