P2687 OBD Error Code: Problem & Solutions
OBD Code P2687 - Fuel Supply Heater Control Circuit/Open
The trouble code P2687 can be described as Fuel
Supply Heater Control Circuit/Open. The P2687 error code would indicate that an
issue has been detected in the fuel supply heater control circuit. The PCM or
one of the other supporting control modules has detected this error. These
control modules may include but are not limited to the alternative fuel control
module, the body control module, the anti lock brake control module, the
instrument panel control module, the fuel injection control module, the turbo control
module, the anti-theft module, cruise control module, the traction control
module, proximity alert module, and the climate control module.
Learn More About OBD Error Code P2687
Error code P2687 flashing? This code would indicate that an issue has been detected in the fuel supply heater control circuit. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model. This would also give rise to the illumination of the check engine light.
What causes this problem with the Fuel Supply Heater Control Circuit/Open?
- There can be distorted fuel supply heater
- Fuel supply heater harness is open or small
- Fuel supply heater circuit might have inadequate electrical connection
Replace/Repair These Parts To Fix OBD Code P2687
- Electronic Control
Unit -
ECU monitors the temperature differences in the boost converter with the help
of the temperature sensors to prevent the converter from overheating and
malfunctioning. Thus, replace faulty ECU immediately.
- Fuel
Delivery System Parts - If you want your car
engine to run perfectly, then you will need an efficient fuel system for that.
The parts of fuel system are fuel tank, filter, pump, tank and injector or
carburetor. If there is a failure in any of these components, then it would
lead to faults in the entire fuel system. We have top notch fuel delivery
system parts for our dear customers.
- Engine Wiring
Harness - Is your car battery losing charge very quickly as well as frequently? Then it
is an indication that your car engine wiring harness has some major issues. Get
it inspected and replaced as soon as possible.
- Engine Control
Module - ECM failures and faults can be very difficult to find and resolve as these are
very rare and might require a complete reprogramming of the system to avoid
wrong codes from getting stored in the system, leading to misdiagnosis. Replace
it now!
- Powertrain Control Module - Faulty PCM can disrupt the normal functioning of the vehicle by affecting the transmission system and the fuel delivery system. This will cause the system to store wrong OBD error and thus can lead to misdiagnosis.
- Diagnostic Tool - In order to be that DIY guy, you need few diagnostic tools to get your car problems pointed out easily. Our diagnostic tools collection will come in handy to do so, so why not have a look?
Symptoms Of OBD Error Code P2687
We care for our customers and that’s why we can totally understand your problem. That’s the reason why we have listed out some major symptoms behind the flashing up of OBD Code P2687. They are mentioned here as follows:
Common Symptoms
- Check engine light can start flashing up
How To Correct P2687 Fuel Supply Heater Control Circuit/Open
If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P2687:
- You must fix the defective electronic control unit
- Make sure to mend the faulty fuel supply heater
- It is essential to restore the flawed fuel supply heater harness
- Repair or replace the quirky fuel supply heater circuit
- Rehabilitate the defaults in the PCM
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Easy Diagnosis Of Engine Error OBD Code P2687
Do you wish to diagnose P2687 error code easily? Here are some steps which you should follow in order to diagnose this fault code:
- This fault code is related to the fuel supply
heater control circuit.
- The powertrain control module controls the
electronic fuel supply heater.
- Fuel supply heater systems are used primarily
in geographic areas with extremely low temperature situations.
- When this particular type of code is
presented, it would indicate that a malfunction has taken place in the CAN.
- CAN stands for “controller area network.” The
CAN represents a communication bus that would allow a number of
microcontrollers to communicate with one another without the need for a host
computer.
- It is a message based protocol initially
designed for automotive use. The network of CAN bus is actually a complex
conglomeration of wiring harnesses and connectors used as a pipeline of
information which is shared between two or more automotive control modules.
- Every electrical function of the vehicle is
virtually controlled by these controllers, with the powertrain control module
being the primary controller. Control modules receive input data from various
sensors and emit output signals to system constituents and other control
modules. If this proves to be a CAN bus associated situation, then it could
prove very challenging to diagnose by an amateur technician.
- Unlike other diagnostic codes, this type of
code can sometimes be best left to a professional simply because of the bulk of
circuitry involved. An technician which is experienced should use a specialized
scanner (Autohex or Tech II) to determine the general area of the malfunction
much more rapidly and easily than someone using a code reader as well as a
digital volt ohmmeter.
- If you will disconnect and check every single
pin of the CAN bus then it can consume a lot of time as well as money. Also
make sure to install some type of memory saving device, test the PCM and other
controllers lose their memory and sometimes they might require reprogramming. A
specialized diagnostic CAN scanner will depict pin values and control module
operation without risking a meltdown.
- It can diagnose computer and issues related
to circuitry correctly by monitoring automobile operation while the vehicle is
being operated. If you want to diagnose this type of code using a digital volt
ohmmeter, then it would entail probing thousands of circuits separately.
- One probe which is misplaced could destroy
expensive control modules and require that the vehicle be totally reprogrammed.
At the most, you may attempt to perform a continuity test after all control
modules are disconnected, and this could literally require 40-hours or more,
based upon the automobile.
- There are some applications are equipped with
up to 18 separate control modules. If you choose to tackle this monumental
task, then you must start with a careful visual inspection of all system
circuitry, connectors, and fuses.
- Control module ground circuits should be
inspected for continuity with battery ground. Generally the faulty system
grounds are reason behind the occurrence of these types of codes. An auxiliary
ground cable can be supportive in diagnosing system ground discrepancies.
Engine and transmission ground cables, straps, and wires are sometimes left
dangling once the repairs have been made.
- Search for loose or corroded electrical connectors
that might rise the circuit resistance and cause these types of codes to be
stored. Obtain a CAN bus system wiring diagram and/or pin out value chart, then
use the digital volt ohmmeter to test continuity between individual controller
connectors.
- You must compare your findings with the manufacturer’s referenced values and repair open or shorted circuits as per the need. It is more economical to restore the faulty wiring rather than attempting to remove it from the complex web of wiring harnesses.
Common Mistakes When Diagnosing The P2687 Code
- The fuel supply heater might start failing
- Non observance of the fuel supply heater
relay
- Failure powertrain control module
- Some issues with the car wiring