Fault code P061E – internal control module brake signal performance

Fault code P061E is called “Internal Control Module Brake Signal Performance” but in different programs it may be called differently. This fault designation applies to all vehicles equipped with OBD-II.

Technical description and explained code P061E

Stored code P061E means that the Powertrain Control Module (PCM) has detected an internal performance error in the Brake Signal Control System. Other controllers may also detect a PCM processor performance error and cause this code to be stored.

Fault code P061E – internal control module brake signal performance

The internal monitoring of the module is responsible for various controller self-test functions and overall accountability. Brake signal inputs and outputs are self-tested and monitored continuously by the PCM.

The brake signal circuit is monitored by the PCM using input signals from the brake pedal sensor. The brake signal circuit is an integral part of several control systems used in automobiles. The most common of these, cruise control and the transmission torque converter lockup system.

The PCM receives input signals from the brake light switch and uses this data to turn various functions on and off, respectively. The input signals are usually limited to on or off.

When the ignition is on and the PCM is energized, numerous self-tests of the internal controller processing are initiated. In addition to performing self-tests, the Controller Area Network (CAN) also compares signals from each individual module. To ensure that each controller is operating properly, these tests are performed simultaneously.

If the PCM detects a discrepancy in the desired signal from the brake and the actual signal, which indicates an internal processor error. Then code P061E will be stored and the Malfunction Indicator Light (MIL) may illuminate.

It may take several failure cycles for the MIL to illuminate, depending on the perceived severity of the fault.

Symptoms of vehicle malfunctions

The main signal that an error P061E has occurred is the Malfunction Indicator Lamp (MIL) is also known as the CheckEngine Light.

It can also be warning signs such as:

  1. Check engine control lamp on the control panel will light up (the code will be recorded in the memory as a fault).
  2. Non-working brake lights.
  3. Sharp or slow gear shifting.
  4. Engine shutdown when stopped.
  5. Excessive fuel consumption.

Module Processor failure should be categorized as a severe code when checked internally. Stored error P061E may cause erratic operation of torque converter lockup or inoperative cruise control.

Factors that can cause this error code

The error code P061E can mean that one or more of the following problems have occurred:

  • The brake light switch is defective.
  • Open or short circuit in the wiring harness.
  • Corroded brake light switches electrical connector.
  • CAN bus may be faulty and shorted to ground or wire breakage.
  • Insufficient grounding of the control module.
  • Sometimes the cause is the PCM itself.

How to fix or reset OBD-2 code P061E

Some suggested steps for troubleshooting and fix the error code P061E:

  1. Read all stored data and error codes with an OBD-II scan tool. To find out when and under what circumstances error P061E appeared.
  2. Clear the error codes from the computer memory and test-drive the vehicle to find out if the malfunction appears again.
  3. It is necessary to check the brake light switch as well as the circuits and connectors.
  4. If the error code appears again, visually inspect the control module (PCM) electrical leads and connector.
  5. Measure the battery voltage and compare it to the value specified in the manufacturer’s specifications.
  6. Check the continuity of the PCM power and ground circuits with a multimeter.
  7. Evaluate the Control Module (PCM) operation following the vehicle manufacturer’s procedure.
  8. Clear the error code from the computer memory again, and test drive the vehicle to determine if the problem has been resolved.

Diagnose and repair of problems

If ECM/PCM power codes are present, they must be cleared before attempting to diagnose error P061E. Also, if stop lamp switch codes are present, they must be eliminated first.

Next, you must connect the scan tool to the vehicle’s diagnostic port and retrieve any stored codes and data. Make a note of this information in case the code turns out to be intermittent.

After recording all the necessary information, clear the codes and test drive the vehicle until the code is cleared or the PCM goes into standby mode. If the PCM goes into standby mode, the code is intermittent and will be more difficult to diagnose.

Check the controller and electrical parts

Use a multimeter to check the fuses and power relays on the controller. Check and replace blown fuses if necessary. Fuses should be checked with the circuit loaded.

If all fuses and relays are working as they should, a visual inspection of the controller wiring and harnesses should be performed. Chassis and motor grounding should also be checked.

Visually inspect the system controllers for signs of water, temperature, or collision damage. Any controller that is damaged, especially by water, should be considered faulty.

If the power and ground circuits of the controller are intact, it is likely that the controller itself is defective or that a programming error exists. Reprogramming the control module will be necessary to replace it.

Unlike most other codes, error P061E is most likely caused by a faulty controller or its programming error.

Some aftermarket PCM manufacturers offer preprogrammed controllers for certain models. Contact your auto parts supplier with your vehicle’s serial number, mileage, and other pertinent information.

On which vehicles does this problem occur most frequently

Fault code P061E can occur on different vehicles but there are statistics on which brands this occurs most often. Here is a list of some of them:

  • Chrysler
  • Dodge (RAM)
  • Ford
  • Land Rover (Discovery)
  • Volvo

Fault code P061E can sometimes be found with other errors. The most common are the following: P061A, P061B, P061C, P061D, P061F.

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