P099E Code - Shift Solenoid 'H' Control Circuit Low
Quick Answer
The P099E diagnostic trouble code (DTC) indicates a problem with the Shift Solenoid 'H' Control Circuit in the vehicle's transmission system. Common causes include Faulty shift solenoid 'H', Wiring issues such as shorts or open circuits, Malfunctioning transmission control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P099E indicates Shift Solenoid 'H' Control Circuit Low.
- Common causes
- Common causes include Faulty shift solenoid 'H', Wiring issues such as shorts or open circuits, Malfunctioning transmission control module.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P099E Description
The P099E diagnostic trouble code (DTC) indicates a problem with the Shift Solenoid 'H' Control Circuit in the vehicle's transmission system. The shift solenoid is responsible for controlling the flow of transmission fluid to actuate gear changes. In this case, the control circuit for solenoid 'H' is reporting a low voltage condition, which can lead to issues with shifting gears smoothly and efficiently.
Common Causes of P099E
- Faulty shift solenoid 'H'
- Wiring issues such as shorts or open circuits
- Malfunctioning transmission control module
- Low transmission fluid level or contaminated fluid
- Electrical issues such as a blown fuse or relay
Symptoms of P099E
- Harsh or delayed shifting
- Erratic shifting patterns
- Inability to shift gears
- Reduced fuel efficiency
- Illumination of the Check Engine Light
How to Fix P099E
- Begin by conducting a thorough inspection of the wiring harness connected to the shift solenoid 'H' to check for any visible damage or corrosion. Repair or replace any damaged wires.
- Test the shift solenoid 'H' using a multimeter to ensure it is functioning correctly. Replace the solenoid if it is found to be faulty.
- Check the transmission control module for any signs of damage or malfunction. If necessary, reprogram or replace the module.
- Inspect the transmission fluid level and condition. Top up the fluid or perform a transmission fluid flush and filter replacement if needed.
- Clear the DTC from the vehicle's computer using a scan tool and test drive the vehicle to ensure the shifting issues have been resolved.
Cost to Fix P099E
The typical repair costs for addressing a Shift Solenoid 'H' Control Circuit Low issue can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire with local auto repair shops for a more accurate estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.
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