P0983 Fault Code

Shift Solenoid D Control Circuit High

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0983 fault code indicates an issue with the Shift Solenoid D control circuit being detected as high. This fault can lead to improper shifting of the transmission, potentially causing poor vehicle performance and increased wear on transmission components. A malfunctioning shift solenoid can interrupt the transmission's ability to shift gears effectively, leading to erratic driving behavior.

What are the symptoms of the P0983 code?

Symptoms associated with the P0983 code may include:

• Rough shifting or hesitation during gear changes
• Check Engine Light illuminated on the dashboard
• Transmission stuck in a single gear (limp mode)
• Decreased fuel efficiency
• Slipping gears or unexpected disengagement

What causes the P0983 code?

Common causes of the P0983 error code include:

• Faulty shift solenoid D
• Wiring issues such as frayed or corroded connections in the solenoid circuit
• Problems with the transmission control module (TCM)
• Low transmission fluid levels or fluid contamination
• Malfunctioning sensors that provide feedback to the TCM

How to fix P0983?

To resolve the P0983 fault code, consider the following steps:

• Inspect the wiring and connectors for any signs of damage or corrosion and repair as necessary.
• Test the shift solenoid D with a multimeter; if it's faulty, replace it.
• Check the transmission fluid level and condition; replace or refill as needed.
• Use a scan tool to clear the code after repairs and test drive the vehicle to ensure the issue is resolved.
• If the problem persists, further diagnostics may be needed to check the TCM or related sensors.