P1693 Dodge Cummins

P1693 Dodge Cummins is a code that is associated with a problem with the ignition system. It can be caused by a number of things, including problems with the ignition coil, the spark plugs, or the wiring. If you experience this code, it’s important to have it diagnosed and fixed as soon as possible to avoid further damage.


The P1693 is the “companion code” when the powertrain control module (PCM) detects a code that isn’t actually linked to it. The code is usually associated with the ECM, or engine control module. As a result, it’s called the companion code since it merely informs you there’s a problem and another code has been recorded in your vehicle.

This code just indicates that at least one problem code is stored in the PCM or ECM. It does not, however, indicate turbocharger-related problems! To summarize, a P1693 on a Cummins engine implies you’ll need to use an OBDII scanner to discover the actual code.

p1693 dodge cummins

Causes of Cummins P1693 Trouble Codes

There are a few things that can cause the P1693 code on your Cummins engine, and the most common ones are:

  • Faulty ignition coil
  • Worn spark plugs
  • Defective wiring

Another typical reason for P1693 on the 24v is a Faulty Accelerator Pedal Position Sensor (APPS). When the gas pedal sensor fails, effectively making the pedal useless, this can lead to erratic and frightening driving conditions.

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Scan tools or code readers may be used to extract the codes since P1693 only indicates the extra stored codes in one or all control modules.

While the presence of just one code is unusual, P1693 may be found in any or all computers without additional codes being detected if there are other codes present. When this occurs, it might be due to (for example) damaged connections nearly everywhere throughout the electrical system.

In both of these situations, one or more computers would key in one or more codes, but if the problem dissipates on its own or when the relevant computer recognizes the fus replacement, the corresponding machine will automatically void the code(s) after a certain period. In some circumstances, P1693 may not be removed through additional codes until it is physically adjusted with a scan tool. Until it is manually changed with a scan tool in these cases, code P1693 might remain.

“FUEL LEAKAGE” is a code indicating that can appear even after the engine is in good operating order, and it’s generally caused by a faulty component or system within the engine. It may also be caused by routine maintenance and repair on the engine, such as unplugging one or more electrical connections anywhere on the engine.

p1693 dodge cummins

How do I determine the actual problem, then?

The first step is to use an OBDII scanner to pull the fault codes. Once you have the code, you can start troubleshooting the problem.

If it’s a wiring issue, for example, it might be easy enough to fix yourself. If it’s something more complicated, like a bad coil, you’ll need to take your vehicle to a mechanic.

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But whatever the problem may be, don’t ignore it! A P1693 code is not something to mess around with – it could lead to major damage if left unchecked. Get your vehicle diagnosed and repaired as soon as possible to avoid any further issues.

Where is the P1693 sensor found?

The presence of code P1693, on the other hand, implies only that additional codes are kept in one or more control modules. As a consequence, it is not feasible to provide information regarding the position of each potential component on Ram trucks that may fail or malfunction as a result of this code.

Because the position of components varies considerably depending on a car’s model and production year, it’s critical to hire an expert for assistance in locating and recognizing parts, components, and systems correctly to avoid misdiagnoses and the possible replacement of parts.

What are the signs of the P1693 code?

Although the visible symptoms of any codes stored alongside P1693 are entirely dependent on which ones are there, Ram trucks with Cummins engines typically experience the following symptoms: –

  • The result of an injector problem is that the engine may be rough idling or running roughly at some speeds.
  • Fuel pump failures result in no-start conditions.
  • When towing or carrying weights, failure of the gasoline system can result in a loss of engine power.

However, before attempting to trace the source(s) of any problems, all stored fault codes must be retrieved from both the ECU and PCU. This will almost certainly lead to wasted time and at least one incorrect diagnosis if this is not done. Furthermore, after repairs are finished, all stored fault codes must be deleted from both the ECU and PCU in order to avoid a recurrence of code P1693.

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Final Thoughts

In short, P1693 is a potentially serious code that should not be ignored. If you experience any of the symptoms listed above, be sure to have your vehicle diagnosed and repaired as soon as possible. And remember, if you’re not sure what the problem is, always consult a professional before attempting to diagnose or fix it yourself.

Frequently Asked Questions

What Is P1693?

P1693 is a diagnostic trouble code (DTC) that is set when additional codes are stored in one or more control modules on a vehicle. The presence of this code alone does not indicate the exact nature of the problem, but it can provide a starting point for troubleshooting.

What Is A Companion Module, Dodge Cummins?

A companion module on a Dodge Cummins is an electronic component that stores additional codes when P1693 is set. These codes can help to identify the source of the problem.

Is Cummins A Good Engine?

Cummins is a well-known and respected engine manufacturer, and their engines are known for their reliability. However, no engine is immune to problems, and P1693 can be caused by a variety of issues.

Is A Dodge Cummins Reliable?

Dodge Cummins engines are known for their reliability, but no engine is immune to problems. If you experience a P1693 code, be sure to have it diagnosed and repaired as soon as possible.

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