B2972 Mercury Code - Pedal Position Input Short To Battery
Quick Answer
The adjustable pedal memory function utilizes a Hall-effect position sensor. Common causes include Adjustable Pedal Motor harness is open or shorted, Adjustable Pedal Motor circuit poor electrical connection, Faulty Memory Set Switch. 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
- B2972 Mercury indicates Pedal Position Input Short To Battery.
- Common causes
- Common causes include Adjustable Pedal Motor harness is open or shorted, Adjustable Pedal Motor circuit poor electrical connection, Faulty Memory Set Switch.
- 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.
Code B2972 Mercury Description
What are the Possible Causes of the DTC B2972 Mercury?
- Adjustable Pedal Motor harness is open or shorted
- Adjustable Pedal Motor circuit poor electrical connection
- Faulty Memory Set Switch
- Faulty Adjustable Pedal Switch
- Faulty Adjustable Pedal Motor
- Faulty Driver seat module (DSM)
How to Fix the DTC B2972 Mercury?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2972 Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B2972 Mercury Code
1. What does OBDII code B2972 mean on a Mercury vehicle?
B2972 indicates a Pedal Position Input Short To Battery, meaning the vehicle’s powertrain control module (PCM) has detected an electrical issue in the pedal position sensor circuit.
2. What are the common symptoms of code B2972 in a Mercury?
Symptoms may include erratic throttle response, poor acceleration, the engine not starting, or the check engine light illuminating.
3. What causes the B2972 code on a Mercury?
Common causes include a short circuit in the pedal position sensor wiring, a faulty pedal position sensor, or a malfunction in the PCM.
4. Can I drive my Mercury with the B2972 code active?
Driving with this code is not recommended, as it can cause unpredictable throttle behavior, which may compromise safety.
5. How do I diagnose the B2972 code?
Start by checking for damaged or frayed wiring in the pedal position sensor circuit, followed by testing the sensor itself for proper voltage and resistance.
6. How do I fix the B2972 code on my Mercury?
Repairs may involve repairing or replacing damaged wiring, replacing the pedal position sensor, or reprogramming/repairing the PCM if necessary.
7. How much does it cost to repair the B2972 code?
The repair cost depends on the issue but typically ranges from $100 to $400, depending on whether the wiring, sensor, or PCM needs replacement.
8. Can a dirty throttle body cause the B2972 code?
No, a dirty throttle body is not directly linked to this code, as it specifically relates to the pedal position sensor circuit.
9. Do I need to recalibrate the pedal position sensor after replacing it?
Yes, in some cases, a recalibration or relearn process may be required to synchronize the new sensor with the PCM.
10. Can a failing PCM trigger the B2972 code?
Yes, although rare, a malfunctioning PCM can sometimes cause this code if it fails to correctly process input from the pedal position sensor.
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