P0926 Shift Reverse Actuator Circuit Low
OBD2 Error Codes

P0926 Shift Reverse Actuator Circuit Low

02.11.2023 /

P0926 – Technical description of the OBD-II fault code

Low signal level in the gear shift reverse drive circuit

What does the fault code mean P0926?

The "P" in the first position of the Diagnostic Trouble Code (DTC) indicates the powertrain system (engine and transmission), the "0" in the second position indicates that it is a generic OBD-II (OBD2) DTC. A "9" in the third position of the fault code indicates a malfunction. The last two characters "26" is the DTC number. OBD2 Diagnostic Trouble Code P0926 means that a low signal level is detected in the shift reverse actuator circuit.

Trouble code P0926 can be explained as a low signal in the shift reverse actuator circuit. This trouble code is generic, meaning it can apply to all OBD-II equipped vehicles or vehicles manufactured from 1996 to present. The detection characteristics, troubleshooting steps, and repairs can always vary depending on the car brand.

Possible reasons

What causes this low signal problem in the shift reverse actuator circuit?

  • Non-working converter
  • IMRC actuator relay may be faulty
  • A faulty oxygen sensor can cause a lean mixture.
  • Damage to wiring and/or connectors
  • The gear shift reverse actuator is faulty
  • Gear guide faulty
  • Gear shift shaft faulty
  • Internal mechanical problems
  • ECU/TCM problems or malfunctions

What are the symptoms of a fault code? P0926?

You might be thinking: How would you diagnose these problems? We at Avtotachki will help you easily diagnose the main symptoms.

  • The transmission becomes unstable
  • It becomes difficult to shift into reverse or turn it off.
  • Check Engine Light Flashing

How to diagnose a fault code P0926?

Here are a few steps to follow to diagnose this DTC:

  • Check VCT solenoid operation.
  • Locate a stuck or stuck VCT solenoid valve due to contamination.
  • Check all wiring, connectors, fuses and relays in the circuit.
  • Check the gear reverse drive.
  • Inspect the idler gear and shift shaft for damage or misalignment.
  • Carry out further diagnostics on the transmission, ECU and TCM.

Diagnostic errors

Common diagnostic errors may include:

  1. Misinterpretation of symptoms, which may lead to misdiagnosis.
  2. Missing important diagnostic steps due to lack of attention to detail.
  3. Use of faulty or inappropriate equipment, which may result in incorrect test results.
  4. Incorrect assessment of the severity of the problem, which can lead to delays in repair or replacement of faulty parts.
  5. Insufficient documentation of the diagnostic process, which can complicate subsequent maintenance and repair.

How serious is the fault code? P0926?

Trouble code P0926 indicates a low signal in the shift reverse actuator circuit. This can seriously affect the operation of the vehicle's transmission, especially the reverse gear shifting process. It is recommended that you contact a qualified technician for diagnosis and repair immediately to avoid further transmission problems.

What repair will help eliminate the code? P0926?

To resolve DTC P0926, the following steps are recommended:

  1. Check and, if necessary, replace inoperative or damaged components such as the converter, IMRC drive relay, oxygen sensor, shift reverse actuator, idler gear and shift shaft.
  2. Carry out diagnostics and, if necessary, replace faulty wires, connectors or relays in the circuit.
  3. Repair or replace the ECU (electronic control unit) or TCM (transmission control module) if they are identified as the source of the problem.
  4. Check for internal mechanical faults in the gearbox and, if necessary, repair or replace them.

It is important to contact a professional automotive technician for proper diagnosis and repair to resolve this issue.

What is P0926 Engine Code [Quick Guide]

P0926 – Brand-specific information

Trouble code P0926 can occur on different makes of vehicles. Here are some of them along with transcripts:

  1. Acura – Low signal problem in the shift reverse actuator circuit.
  2. Audi – Reverse drive chain range/parameters.
  3. BMW – Low signal level in the reverse drive circuit.
  4. Ford – Reverse drive circuit operating range mismatch.
  5. Honda – Problem with the reverse gear shift actuator.
  6. Toyota – Problems with the reverse gear selection solenoid.
  7. Volkswagen – Malfunction in the gear shift reverse drive.

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