Quick Answer
P0708 means: P0708 indicates a fault in the transmission range sensor circuit.
Can I drive with P0708? Immediate attention is recommended to avoid transmission damage.
Common Questions
What does P0708 mean and how does it affect my car?
The P0708 code signifies a malfunction in the transmission range sensor, which helps the ECU know the position of the transmission. This can lead to improper shifting and diminished vehicle performance. Long-term exposure to this issue can cause further damage to the transmission.
What are the most common causes of P0708 and how much does it cost to fix?
Common causes of P0708 include a faulty transmission range sensor, damaged wiring, and low transmission fluid levels. Repair costs typically range from $100 to $300, depending on the specific repairs needed.
Can I drive my car with P0708 or should I stop immediately?
While it may be possible to drive with a P0708 code, it is not advisable. Continuing to drive can lead to severe transmission damage. It's best to have the issue diagnosed and repaired as soon as possible.
How can I diagnose P0708 myself using GeekOBD APP?
Using the GeekOBD APP, you can scan for the P0708 code and view freeze frame data. Check for any related codes and inspect the transmission range sensor circuit for visible damage. The app can help you interpret data to make informed decisions on repairs.
What vehicles are most commonly affected by P0708?
DTC P0708 is often seen in vehicles like the 2011-2016 Ford Fiesta, 2008-2012 Toyota Corolla, and 2013-2018 Honda Accord. Be sure to check for any recalls or Technical Service Bulletins (TSBs) related to your specific model.
How can I prevent P0708 from happening again?
Regular maintenance, including checking your transmission fluid levels and inspecting wiring for wear and tear, can help prevent a recurrence of the P0708 code. Additionally, using quality parts during repairs can enhance longevity.
What is P0708?
The diagnostic trouble code (DTC) P0708 indicates a problem with the transmission range sensor circuit, which is responsible for reporting the position of the transmission to the vehicle’s engine control unit (ECU). This code is commonly triggered in vehicles such as the 2011-2016 Ford Fiesta, 2008-2012 Toyota Corolla, and 2013-2018 Honda Accord. When the ECU detects an out-of-range signal from the transmission range sensor, it sets the P0708 code, which can lead to various driving issues. In practical terms, this could mean that your vehicle may struggle to shift gears properly or even enter limp mode, which limits speed to prevent further damage. If left unresolved, a P0708 code can lead to increased wear on transmission components and eventually costly repairs. Drivers may notice symptoms such as erratic shifting, the check engine light illuminating, or the inability to shift into certain gears. It's crucial to address this code promptly to maintain optimal vehicle performance and safety.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0708 is present:
- Check engine light stays on constantly, indicating a persistent issue that needs attention.
- Engine hesitates during acceleration, affecting overall driving performance and responsiveness.
- Fuel economy decreased by 10-15%, leading to higher fuel costs and reduced efficiency.
- Transmission may not shift into the correct gear, resulting in a sluggish or jerky driving experience.
- Inability to engage reverse gear, making it difficult to maneuver in tight spaces.
Possible Causes
Most common causes of P0708 (ordered by frequency):
- The most common cause is a faulty transmission range sensor, occurring in about 60% of cases. This sensor can wear out over time or become damaged due to environmental factors.
- Another frequent cause is damaged wiring or connectors in the sensor circuit, which can lead to intermittent faults or complete signal loss.
- A third cause includes low transmission fluid levels, which can affect sensor operation and lead to erratic shifting. Regular fluid checks are essential to prevent this issue.
- Less common but serious causes include a failing engine control unit (ECU), which can misinterpret sensor signals and cause various problems.
- Rarely, a complete transmission failure may also trigger the P0708 code, indicating severe issues that require immediate professional diagnosis.
P0708 Repair Costs
Cost Breakdown by Repair Type
Transmission Range Sensor Replacement
Replacing the faulty transmission range sensor to restore correct operation.
- Total: $150 - $300
- Success rate: 90%
Wiring Repair
Repairing or replacing damaged wiring or connectors in the sensor circuit.
- Total: $100 - $250
- Success rate: 80%
Money-Saving Tips for P0708
- 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 P0708 Diagnosis Process
Follow these systematic steps to accurately diagnose P0708. 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 multimeter or specific diagnostic tools to test suspected components, especially the range sensor (20-30 minutes)
Step 3: Component testing - Use multimeter or specific diagnostic tools to test suspected components, especially the range sensor (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs, clear codes, and ensure that the transmission behaves as expected (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs, clear codes, and ensure that the transmission behaves as expected (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, paying attention to shifting behavior (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, paying attention to shifting behavior (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 Range Sensor Replacement in 2015 Ford Fiesta
Vehicle: 2015 Ford Fiesta, 50,000 miles
Problem: Customer reported the check engine light was on, and the vehicle was hesitating during gear shifts.
Diagnosis: After scanning with a diagnostic tool, P0708 was retrieved. A visual inspection revealed damaged wiring to the transmission range sensor.
Solution: Replaced the damaged wiring and installed a new transmission range sensor.
Cost: $250 (parts: $150 for the sensor, $100 for wiring repair)
Result: The issue was resolved, and the customer reported smooth shifting and no further warnings.
Case Study 2: Wiring Repair for P0708 in 2013 Honda Accord
Vehicle: 2013 Honda Accord, 75,000 miles
Problem: Driver experienced erratic gear shifts and noticed the check engine light was illuminated.
Diagnosis: Scanned the vehicle, which confirmed the P0708 code. Inspected the wiring harness and found corrosion at the connections.
Solution: Repaired the corroded wiring and cleared the codes.
Cost: $180 (parts: $80 for connectors, $100 for labor)
Result: The vehicle operated normally post-repair, with no further codes appearing.