P0991 Dodge Code - Transmission Fluid Pressure Sensor/Switch 'E' Circuit Intermittent
Quick Answer
The P0991 diagnostic trouble code (DTC) indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'E' Circuit in a Dodge vehicle. Common causes include Faulty Transmission Fluid Pressure Sensor/Switch 'E', Damaged or corroded wiring in the circuit, Malfunctioning ECM. 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
- P0991 Dodge indicates Transmission Fluid Pressure Sensor/Switch 'E' Circuit Intermittent.
- Common causes
- Common causes include Faulty Transmission Fluid Pressure Sensor/Switch 'E', Damaged or corroded wiring in the circuit, Malfunctioning ECM.
- 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 P0991 Dodge Description
The P0991 diagnostic trouble code (DTC) indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'E' Circuit in a Dodge vehicle. This sensor is responsible for monitoring the fluid pressure within the transmission system and sending this data to the engine control module (ECM). The ECM uses this information to ensure proper shifting of the transmission and overall performance of the vehicle. When the sensor detects an intermittent issue in the circuit, it can lead to erratic transmission behavior, poor shifting, and potential damage to the transmission components.
Common Causes of P0991 Dodge
- Faulty Transmission Fluid Pressure Sensor/Switch 'E'
- Damaged or corroded wiring in the circuit
- Malfunctioning ECM
- Low transmission fluid levels
- Internal transmission issues
Symptoms of P0991 Dodge
- Erratic shifting of the transmission
- Delayed or harsh shifting
- Transmission slipping gears
- Illuminated check engine light
- Transmission overheating
How to Fix P0991 Dodge
- Begin by connecting a diagnostic scanner to the vehicle's onboard computer to retrieve the fault codes and confirm the presence of P0991.
- Inspect the wiring harness and connections related to the Transmission Fluid Pressure Sensor/Switch 'E' for any signs of damage or corrosion. Repair or replace as necessary.
- Test the sensor itself to ensure proper functioning. Replace if faulty.
- Check the transmission fluid level and condition. Top up or replace fluid if needed.
- Clear the fault codes from the ECM memory and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P0991 Dodge
The typical repair costs for addressing a P0991 code in a Dodge vehicle can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as a new sensor or wiring harness, can range from $50 to $200. Labor costs at auto repair shops typically range from $80 to $150 per hour. Overall, the total repair cost for this issue could range from $150 to $500, including parts and labor. However, it's important to note that these estimates are general guidelines, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. It's recommended to consult with a qualified mechanic or repair shop for a more accurate cost estimate.
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