P0922 - Front Shift Actuator Circuit Low

P0922 – OBD-II Trouble Code Technical Description

Low signal level in the front gear drive circuit

What does the fault code mean P0922?

Trouble code P0922 indicates a low signal in the forward shift actuator circuit. This code applies to OBD-II equipped transmissions and is found in vehicles from brands such as Audi, Citroen, Chevrolet, Ford, Hyundai, Nissan, Peugeot and Volkswagen.

The forward shift drive is controlled by the transmission control module (TCM). If the drive does not meet manufacturer specifications, DTC P0922 will set.

To shift gears correctly, the forward drive assembly uses sensors to determine the selected gear and then activates an electric motor inside the transmission. Low voltage on the forward actuator circuit will cause DTC P0922 to be stored.

This diagnostic code is generic for transmissions and applies to all makes and models of vehicles. However, specific troubleshooting steps may vary slightly depending on your vehicle model.

Possible reasons

A low signal problem in the front shift actuator circuit may be caused by:

• Internal mechanical faults in the transmission.
• Defects in electrical components.
• Problems associated with the forward gear shift drive.
• Some problems related to the gear shift shaft.
• Malfunctions in the PCM, ECM or transmission control module.

Code P0922 may indicate the following problems:

• Problem with the forward gear shift actuator.
• Malfunction of the forward gear selection solenoid.
• Short circuit or damaged wiring.
• Faulty harness connector.
• Damage to wiring/connectors.
• The guide gear is faulty.
• Gear shift shaft faulty.
• Internal mechanical failure.

What are the symptoms of a fault code? P0922?

Symptoms of a P0922 trouble code include:

• Unstable transmission operation.
• Difficulty changing gears, including forward gear.
• Reduced fuel efficiency.
• Increased overall fuel consumption.
• Incorrect movement behavior of the transmission.

To diagnose and resolve the problem, we recommend the following steps:

• Read all stored data and trouble codes using an OBD-II scanner.
• Erase error codes from your computer's memory.
• Visually check wires and connectors for damage.
• Check the gear shift drive.
• Replace faulty parts if necessary.
• Check the transmission control module (TCM).

How to diagnose a fault code P0922?

The first thing to do when diagnosing a P0922 code is to check if the electrical part is damaged. Any faults such as breakdowns, disconnected connectors or corrosion can interrupt the transmission of signals, causing the transmission to fail to control. Next, check the battery, as some PCM and TCM modules are sensitive to low voltage. If the battery is low, the system may indicate this as a malfunction. Make sure the battery is producing at least 12 volts and that the alternator is operating normally (minimum 13 volts at idle). If no faults are found, check the gear selector and drive. It is very rare for the Transmission Control Module (TCM) to fail, so when diagnosing P0922, it should be checked if all other checks have been completed.

Diagnostic errors

Common errors when diagnosing the P0922 trouble code include:

• Incomplete or improper scanning of error codes using an OBD-II scanner.
• Incorrect interpretation of data and still images obtained from the fault code scanner.
• Insufficient inspection of electrical components and wiring, resulting in hidden problems being missed.
• Incorrect assessment of the battery condition, which may also cause incorrect diagnosis.
• Insufficient testing of the transmission control module (TCM) or incorrect interpretation of its operation.

How serious is the fault code? P0922?

Trouble code P0922 indicates problems with the forward shift drive circuit. This can cause the transmission to malfunction and cause difficulty shifting, which can significantly affect the performance and safety of your vehicle. It is important to take this problem seriously and begin diagnosis and repair as soon as possible to avoid possible further damage to the transmission.

What repair will help eliminate the code? P0922?

The following steps can be taken to resolve DTC P0922:

1. Inspect and repair the electrical circuit, including wiring, connectors, and components associated with the shift actuator.
2. Check and replace the battery if it does not produce enough voltage, and ensure that the generator is working correctly.
3. Check and replace the gear selector and drive if they are damaged or oxidized.
4. Thorough diagnosis and possible replacement of the Transmission Control Module (TCM) if all other tests fail.

It is recommended that you have a qualified automotive technician perform detailed diagnostics and repairs to resolve the P0922 code.

What is P0922 Engine Code [Quick Guide]

P0922 – Brand-specific information

Here is a list of some car brands and code P0922 codes:

1. Audi: Gear Shift Forward Actuator Circuit Low
2. Citroen: Gear Shift Forward Actuator Circuit Low
3. Chevrolet: Gear Shift Forward Actuator Circuit Low
4. Ford: Gear Shift Forward Actuator Circuit Low
5. Hyundai: Gear Shift Forward Actuator Circuit Low
6. Nissan: Gear Shift Forward Actuator Circuit Low
7. Peugeot: Gear Shift Forward Actuator Circuit Low
8. Volkswagen: Gear Shift Forward Actuator Circuit Low

This is general information and it is recommended that you consult the repair manual for your specific vehicle make and model or a qualified technician for more accurate diagnosis and repair.