P1916 – OBD-II DTC

OBD-II DTC P1916 – VFS B Pressure Output Failed Low

DTC P1916 meaning

DTC P1916 refers to a diagnostic trouble code indicating that the Variable Force Solenoid (VFS) B pressure output has failed low. This code is typically associated with automatic transmission systems and indicates that the pressure output from the solenoid is below the expected range, which can affect transmission performance and shifting quality.

DTC P1916 symptoms

Common symptoms associated with DTC P1916 may include:

• Harsh or erratic shifting of the transmission
• Delayed engagement when shifting from park to drive or reverse
• Transmission slipping or failing to engage
• Check Engine Light (CEL) illuminated
• Reduced fuel efficiency

DTC P1916 causes

Several factors can lead to the occurrence of DTC P1916, including:

• Faulty Variable Force Solenoid (VFS) B
• Wiring issues or poor connections in the solenoid circuit
• Low transmission fluid levels or contaminated fluid
• Faulty transmission control module (TCM)
• Mechanical issues within the transmission

DTC P1916 seriousness

DTC P1916 can be considered serious as it directly impacts the transmission’s ability to function properly. If left unaddressed, it may lead to further transmission damage, increased repair costs, and potential safety hazards while driving due to unpredictable shifting behavior.

How to diagnose DTC P1916

To diagnose DTC P1916, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the P1916 code.
2. Check for any additional trouble codes that may provide more context.
3. Inspect the transmission fluid level and condition.
4. Examine the wiring and connectors related to the VFS B for damage or corrosion.
5. Test the Variable Force Solenoid (VFS) B for proper operation using a multimeter.
6. Check the transmission control module (TCM) for faults or updates.

How to fix DTC P1916 step-by-step instructions

To fix DTC P1916, follow these steps:

1. Ensure the vehicle is safely lifted and supported if necessary.
2. Check and top off the transmission fluid if low or replace it if contaminated.
3. Inspect and repair any damaged wiring or connectors related to the VFS B.
4. If the VFS B is faulty, replace it with a new solenoid.
5. Clear any stored trouble codes using an OBD-II scanner.
6. Test drive the vehicle to ensure the issue is resolved and monitor for any reoccurrence of the code.

How to erase DTC P1916

To erase DTC P1916, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Access the trouble codes menu on the scanner.
4. Select the option to clear or erase trouble codes.
5. Confirm the action and wait for the scanner to indicate that the codes have been cleared.
6. Disconnect the scanner and start the vehicle to ensure the check engine light is off.

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