P069B - OBD Trouble Code

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What does this error code signify? When will the control circuit be high in the cylinder 9? Before the engine starts, glow plug is used to preheat the cylinder. If the glow plugs for cylinder 9 is not functioning, the powertrain control module will set the P069B code.

The heat which is required to start the combustion during cold temperature is given by glow plugs. During initial start of engine, before and during cranking, glow plugs are heated. The coolant temperature and voltage of glow plug is monitored by the engine control module. If the voltage of feedback is not within limit between the controllers to the ECM, this error code will be set.

What causes this problem with the Cylinder 9 Glow Plug Control Circuit High?

• Poor glow plugs.
• Short or open glow plug circuit.
• Defective glow plug connector.
• Damaged glow plug timer.

1. Glow Plug Relay - Examine if the glow plug relay is appropriately connected. If not, fix them properly or substitute them if damaged.
2. Glow Plug Timer - Are you on the lookout for this component. Get them from Parts Avatar at an affordable cost.
3. Electrical Component - Every module of your engine system has to function ordinarily. If not it can give rise to this error code.
4. Glow Plug Circuit - If the glow plugs are not accurately linked, the brightness will be less. Change then with the right replacement part from Parts Avatar.
5. PCM - A defective or damaged PCM of your vehicle needs to be substituted immediately to avoid error.
6. Starter Relay - If your car does not start, then it’s for the reason that the starter relay is damaged. Change the faulty part instantly.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P069B here:

Common Symptoms

• Great black smoke from exhaust.
• Engine drive problems.
• Late engine start up.
• Fewer fuel efficiency.
• Engine misfire mistakes

Want to correct the Trouble Code P069B? Read these points mentioned below:

• The original multi-displacement system turns off the opposite pairs of cylinders, allowing the engine to have 3 different types of configurations and specifications. P069B code has an elaborate diagnostics procedure, including engine trouble codes on the air conditioning display. Nevertheless, the system was hard, misunderstood by the customers and a list of unpredictable failures led to the technology to quickly retire.

Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best priced Glow Plug Relay, Glow Plug Timer, Electrical Component, Glow Plug Circuit, PCM, Engine, Starter Relay and a lot more to help you out in fixing your car.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P069B code to be stored:

• To appropriately diagnose you will need a scanner, confidential source of information and a DVOM. Examine for an accurate TSB and locate it to match the symptoms, vehicles model and make and other stored codes to help unravelling the error code.
• You will need other information like diagnostic flowcharts, wire diagrams, connector face views, connector pinout charts, component locations, and testing progression to appropriately diagnose the error code.
• Visually check the glow plug, glow plug control wires, connectors and fix the scanner to the vehicle to recover codes and freeze frame data. Test drive the vehicle and one or the other, the PCM will enter readiness mode or it will be reset. Continue diagnosing if code is rest. If not, there will be an unequal condition and you have to worsen it for appropriate diagnosis.
• It is best to eliminate glow plugs and apply the voltage. If it glows red, it’s worthy. If not test it with a DVOM to meet the specification as said by manufacturer. Be alert while performing this test.
• If the glow works as it should be, activate the glow plug timer and test the voltage with the help of scanner. If you don’t find voltage, assess the glow plug timer/ controller for power supply. Test all its associated fuses and relays as said by manufacturer with full circuit. The fuse which is not full with circuit will look as if it functions normally, but it will lead to wrong path.
• If both the fuse and relays function accurately, test the output voltage with a DVOM. If you find the voltage, there can be open or short circuit which you can exchange easily.
• As it is a control circuit code, the mistake can happen because of broken-down glow plug. But a corrupt glow plug can only be a source which results in error code.
• Make sure that you diagnose the right cylinder as it can save you from a big headache.

Common Mistakes When Diagnosing the P069B Code

• Ruined Glow plug control module.
• Dented Glow plug.
• Glow plug wiring harness imperfect.

P069A - Cylinder 9 Glow Plug Control Circuit Low