P1917 – OBD-II DTC

OBD-II DTC P1917 – VFS C Pressure Output Failed Low

DTC P1917 meaning

DTC P1917 refers to a diagnostic trouble code indicating that the Variable Force Solenoid (VFS) C pressure output has failed low. This code is typically associated with the transmission system, specifically the solenoid responsible for controlling hydraulic pressure within the transmission. A low output signal from the VFS C can lead to improper transmission operation, affecting shifting performance and overall drivability.

DTC P1917 symptoms

Common symptoms associated with DTC P1917 may include:

• Delayed or harsh shifting of the transmission
• Transmission slipping or failure to engage
• Check Engine Light illuminated
• Unusual noises from the transmission
• Reduced fuel efficiency

DTC P1917 causes

Several factors can contribute to the occurrence of DTC P1917, including:

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

DTC P1917 seriousness

DTC P1917 is considered a serious issue as it can lead to significant transmission problems. If left unaddressed, it may result in complete transmission failure, which can be costly to repair. Additionally, the symptoms associated with this code can affect vehicle safety and drivability, making it essential to diagnose and resolve the issue promptly.

How to diagnose DTC P1917

To diagnose DTC P1917, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the P1917 code.
2. Inspect the transmission fluid level and condition.
3. Check the wiring and connectors related to the Variable Force Solenoid C for damage or corrosion.
4. Test the Variable Force Solenoid C for proper operation using a multimeter.
5. Examine the transmission control module (TCM) for faults or updates.
6. Perform a road test to observe transmission behavior and confirm symptoms.

How to fix DTC P1917 step-by-step instructions

To fix DTC P1917, follow these steps:

1. Address any low or contaminated transmission fluid by replacing it and ensuring proper levels.
2. Repair or replace any damaged wiring or connectors related to the Variable Force Solenoid C.
3. If the Variable Force Solenoid C is faulty, replace it with a new unit.
4. Reprogram or replace the transmission control module (if necessary).
5. Clear the DTC using an OBD-II scanner and perform a road test to ensure the issue is resolved.

How to erase DTC P1917

To erase DTC P1917, 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 scanner’s menu and select the option to clear or erase trouble codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and start the vehicle to check if the code reappears.

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