P260D – PTO – Engaged Lamp Control Circuit

What are some of the symptoms of the code?

Symptoms of a P260D fault code may include:

  • The power take-off indicator light does not illuminate
  • Auxiliary power take-off equipment will not operate
  • Check engine light illuminated

What are some common causes of the code?

Causes

of this P260D code may include:

  • Fault in the PTO lamp control circuit
  • Defective or damaged wiring
  • Corroded, damaged, or loose connector
  • Faulty fuse or fusible link (if applicable)
  • Defective PCM

What are the troubleshooting steps for P260D?

The first step in the troubleshooting process for any malfunction is to search for Technical Service Bulletins (TSBs) for the specific vehicle by year, model, and engine/transmission configuration. In some circumstances, this can save significant time in the long run by pointing you in the right direction.

The second step is to locate all components associated with the power take-off circuit and look for obvious physical damage. Perform a thorough visual inspection to check that associated wiring shows no obvious defects such as scraping, rubbing, exposed wires, or burn marks. Then check connectors and connections for security, corrosion, and damaged pins. This process should include all wiring connectors and connections to all components, including the PCM. Consult vehicle-specific technical data to verify the oil level safety circuit configuration and see if a fuse or fusible link is incorporated in the circuit.

Advanced Steps

Advanced steps become very vehicle-specific and require appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and vehicle-specific technical references. In this situation, an oil pressure gauge may facilitate the troubleshooting process.

This article is strictly informational and technical data and service bulletins specific to your vehicle should always take priority.

P260E – Diesel Particulate Filter Regeneration Lamp Control Circuit

P260E Possible Causes

  • Faulty diesel particulate filter regeneration lamp
  • Open or short circuit in diesel particulate filter regeneration lamp wiring
  • Poor electrical connection in diesel particulate filter regeneration lamp circuit

How to Fix Code P260E

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated check engine light (or service engine soon warning light)

P260E Meaning

The Powertrain Control Module (PCM) monitors the signal from the diesel particulate filter regeneration lamp control circuit. The PCM sets the OBDII code when the signal from the diesel particulate filter regeneration lamp control circuit is outside factory specifications.

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P260F – Evaporation System Monitoring Processor Performance

P260F Possible Causes

  • Powertrain Control Module (PCM) calibration
  • Faulty Powertrain Control Module (PCM)

How to Fix Code P260F

Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P260F Meaning

The P260F code is set when a problem is detected inside the Powertrain Control Module (PCM). The microprocessor controlling the Engine Off Natural Vacuum (EONV) leak check monitor is separate from the main processor in the PCM.

P2610 ECM/PCM Internal Engine Off Timer Performance

Symptoms and Severity

Since many underlying factors depend on the performance of the internal ECM/PCM engine shutdown timer, this code must be treated with a certain degree of urgency.

Symptoms of a P2610 code may include:

  • Initially, no obvious symptoms are likely to appear
  • Decreased engine performance
  • Reduced fuel efficiency
  • Eventually, engine driving symptoms may also appear

Causes

Potential causes for setting this code are as follows:

  • ECM/PCM programming errors
  • Faulty ECM/PCM
  • Open or short-circuited wiring or connectors
  • Faulty crankshaft position sensor (CPS) or short-circuited CPS wiring

Diagnostic and Repair Procedures

A good starting point is always to check the technical service bulletins (TSB) for your specific vehicle. Your issue might be a known problem with a published fix from the manufacturer, which can save you time and money during diagnosis.

To diagnose a stored P2610 code, you will need a diagnostic scanner, a digital volt/ohmmeter (DVOM), and a reliable source of vehicle information (such as All Data DIY).

If one or more CPS codes are present, diagnose and repair them before attempting to diagnose a stored P2610.

At this point, you will be well served by connecting the scanner to the vehicle’s diagnostic connector. Retrieve all stored codes and freeze frame data, and note this information; it may be useful, especially if P2610 turns out to be an intermittent code. Now, clear the codes and test-drive the vehicle to see if P2610 resets. If it resets, reconnect the scanner and observe the CPS and engine RPM data using the data stream display. Focus on CPS and RPM readings with the key on and engine off (KOEO). If the engine RPM readings indicate anything other than 0, suspect a faulty CPS or short-circuited CPS wiring. If the CPS and engine RPM data appear normal, continue the diagnostic process.

Use the DVOM to observe the ignition coil primary voltage with the ignition off. If the ignition coil primary voltage remains above five volts, suspect a short circuit (to voltage) in that system. If the voltage is at 0, continue your diagnosis.

Using your vehicle information source, determine the precise parameters used by the ECM/PCM to indicate that the engine has been shut down and an ignition cycle has ended. Once you have made this determination, use the DVOM to test all individual circuits for the associated components. To avoid damaging the ECM/PCM, disconnect all associated controllers before testing circuit resistance with the DVOM. Repair or replace faulty circuits as needed and retest the system. Keep in mind that no repair can be declared successful until the ECM/PCM enters readiness mode. To do this, simply clear the codes (after repairs are made) and drive the vehicle as usual; if the PCM enters readiness mode, the repair was successful, and if the code resets, it was not.

If all system circuits are within specifications, suspect a faulty PCM or PCM programming error.

Additional Diagnostic Notes:

  • Failure to address a P2610 code could result in damage to the catalytic converter (among other things)
  • Do not assume the PCM is faulty; system wiring malfunctions are common
  • Use your vehicle information source to match technical service bulletins and/or recalls with the relevant codes and symptoms

P2611 – A/C Refrigerant Distribution Valve Control Circuit / Open

P2611 Possible Causes

  • Faulty A/C refrigerant distribution valve
  • A/C refrigerant distribution valve circuit open or shorted
  • Poor electrical connection in A/C refrigerant distribution valve circuit

How to Fix Code P2611

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated check engine light (or service engine soon warning light)

P2611 Meaning

The Engine Control Module (ECM) monitors the signal from the A/C refrigerant distribution valve control circuit. The ECM sets the OBDII code when the A/C refrigerant distribution valve control circuit signal is outside factory specifications.

P2612 – A/C Refrigerant Distribution Valve Control Circuit Low

P2612 Possible Causes

  • Faulty A/C refrigerant distribution valve
  • A/C refrigerant distribution valve circuit open or shorted
  • Poor electrical connection in A/C refrigerant distribution valve circuit

How to Fix Code P2612

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated check engine light (or service engine soon warning light)

P2612 Meaning

The Engine Control Module (ECM) monitors the signal from the A/C refrigerant distribution valve control circuit. The ECM sets the OBDII code when the A/C refrigerant distribution valve control circuit signal is outside factory specifications.

P2613 – High A/C Refrigerant Distribution Valve Control Circuit

P2613 Possible Causes

  • Faulty A/C refrigerant distribution valve
  • A/C refrigerant distribution valve harness is open or shorted
  • Poor electrical connection in A/C refrigerant distribution valve circuit

How to Fix Code P2613

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2613 Meaning

The Engine Control Module (ECM) monitors the signal from the A/C refrigerant distribution valve control circuit. The ECM sets the OBDII code when the A/C refrigerant distribution valve control circuit signal is outside factory specifications.

P2614 – Camshaft Position Signal Output Circuit / Open

P2614 Possible Causes

  • Faulty camshaft position sensor
  • Camshaft position sensor harness is open or shorted
  • Poor electrical connection in camshaft position sensor circuit

How to Fix Code P2614

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2614 Meaning

The camshaft position sensor is an electronic device used in an engine to record the rate at which the camshaft spins. This information is used by the Engine Control Module (ECM) to control ignition and fuel injection. The camshaft position sensor detects the camshaft retraction (intake) to identify a particular cylinder. The camshaft position sensor detects the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.

P2615 – Low Camshaft Position Signal Output Circuit

P2615 Possible Causes

  • Faulty camshaft position sensor
  • Camshaft position sensor harness is open or shorted
  • Poor electrical connection in camshaft position sensor circuit

How to Fix P2615 Code

Check the “Possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2615 Meaning

The camshaft position sensor is an electronic device used in an engine to record the rate at which the camshaft spins. This information is used by the Engine Control Module (ECM) to control ignition and fuel injection. The camshaft position sensor detects the retraction of the camshaft (intake) to identify a particular cylinder. The camshaft position sensor detects the position of the piston. The sensor system consists of a rotating part, typically a disk, as well as a static part, the actual sensor.