Quick Answer
P0917 means: P0917 refers to a transmission position sensor A circuit performance issue, which can lead to shifting problems.
Can I drive with P0917? Immediate attention is recommended to prevent further transmission damage.
Common Questions
What does P0917 mean and how does it affect my car?
P0917 signifies a malfunction with the transmission position sensor A circuit, which communicates the gear position to your car's ECM. If ignored, it can lead to erratic shifting or even transmission failure, impacting your vehicle's performance and safety.
What are the most common causes of P0917 and how much does it cost to fix?
Common causes include a faulty transmission position sensor, wiring issues, or software problems. Repair costs can range from $100 for wiring repairs to $300 for sensor replacement, depending on the vehicle and labor rates.
Can I drive my car with P0917 or should I stop immediately?
While you may still be able to drive, it's not advisable to ignore the P0917 code. Continuing to drive with this issue can worsen the condition of your transmission, potentially leading to more severe damage and higher repair costs.
How can I diagnose P0917 myself using GeekOBD APP?
You can use the GeekOBD APP to scan for codes, view freeze frame data, and monitor the performance of the transmission position sensor. Pay attention to the voltage readings and compare them against manufacturer specifications to identify issues.
What vehicles are most commonly affected by P0917?
The P0917 code frequently affects models such as the 2014-2018 Ford F-150 and the 2015-2019 Chevrolet Silverado. These vehicles may have known transmission issues, so it's essential to stay informed about any recalls or technical service bulletins (TSBs).
How can I prevent P0917 from happening again?
Regular maintenance, including checking and cleaning electrical connections and ensuring the transmission fluid is at the correct level, can help prevent P0917. Additionally, have your vehicle inspected for software updates periodically.
What is P0917?
The diagnostic trouble code P0917 indicates a problem with the transmission position sensor A circuit, which is responsible for relaying the position of the transmission to the engine control module (ECM). This code is often triggered when the signal from the sensor falls outside of the expected range, suggesting a malfunction in the sensor itself or a wiring issue. It's commonly seen in vehicles like the 2014-2018 Ford F-150 and 2015-2019 Chevrolet Silverado. When this code is present, it can lead to issues such as erratic shifting, difficulty in engaging gears, or even complete transmission failure if not addressed promptly. This can affect the vehicle's drivability and safety, leading to potential stalling or loss of power during operation. Real-world implications include increased wear on transmission components, poor fuel economy, and, ultimately, costly repairs if the issue is ignored. To ensure your vehicle operates smoothly, diagnosing and repairing the cause of P0917 should be a priority.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0917 is present:
- Check engine light illuminates steadily or flashes, indicating a serious issue requiring immediate attention.
- Transmission may experience harsh or erratic shifting, making it difficult to change gears smoothly, and possibly causing a jarring sensation.
- The vehicle may hesitate or stall during acceleration due to improper transmission engagement, leading to a frustrating driving experience.
- Fuel economy may decrease significantly, potentially by 10-20%, as the transmission struggles to perform efficiently.
- Unusual noises, such as grinding or clunking sounds when shifting gears, may indicate mechanical issues with the transmission.
Possible Causes
Most common causes of P0917 (ordered by frequency):
- Faulty transmission position sensor (60% likelihood) - Often, the sensor itself is the culprit, leading to inaccurate readings.
- Wiring issues (25% likelihood) - Damaged, corroded, or loose connections in the sensor circuit can disrupt signal transmission.
- Software problems in the ECM (10% likelihood) - Outdated or corrupted software may cause the ECM to misinterpret the sensor's signals.
- Mechanical failure within the transmission (4% likelihood) - While less common, internal transmission issues can trigger this code.
- Environmental factors (1% likelihood) - Extreme temperatures or exposure to moisture can affect sensor performance.
P0917 Repair Costs
Cost Breakdown by Repair Type
Transmission Position Sensor Replacement
Replacing a faulty transmission position sensor can resolve the P0917 code.
- Total: $150 - $300
- Success rate: 90%
Wiring Repair
Repairing damaged wiring or connections in the sensor circuit.
- Total: $100 - $200
- Success rate: 85%
Money-Saving Tips for P0917
- Start with the most common and least expensive repairs first
- Use GeekOBD APP to confirm diagnosis before replacing expensive parts
- Consider preventive maintenance to avoid future occurrences
- Compare prices for OEM vs aftermarket parts based on your needs
- Address the issue promptly to prevent more expensive secondary damage
Diagnostic Steps
Professional P0917 Diagnosis Process
Follow these systematic steps to accurately diagnose P0917. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).
Step 3: Step 3: Component testing - Use a multimeter to check the voltage and resistance of the transmission position sensor (20-30 minutes)
Step 3: Component testing - Use a multimeter to check the voltage and resistance of the transmission position sensor (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes, ensuring the issue is resolved (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs and clear codes, ensuring the issue is resolved (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and check for reoccurrence of the code (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and check for reoccurrence of the code (15-20 minutes).
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: Transmission Sensor Replacement on 2015 Ford F-150
Vehicle: 2015 Ford F-150, 75,000 miles
Problem: Customer reported check engine light and rough shifting.
Diagnosis: OBD2 scan revealed P0917 code. Visual inspection showed corroded wiring to the transmission position sensor.
Solution: Replaced wiring harness and the faulty transmission position sensor.
Cost: $250 (parts: $150 for sensor, $100 for wiring repair)
Result: Customer reported smooth shifting and no check engine light after repair.
Case Study 2: Wiring Repair on 2016 Chevrolet Silverado
Vehicle: 2016 Chevrolet Silverado, 60,000 miles
Problem: Check engine light on and vehicle hesitating during acceleration.
Diagnosis: P0917 code confirmed through OBD2 scan. Wiring inspection revealed a frayed wire causing intermittent signal loss.
Solution: Repaired the wiring and re-secured connections.
Cost: $150 (labor and materials included)
Result: Post-repair, vehicle performance returned to normal with no reoccurring codes.