P0122 | P0122 Throttle Pedal Position Switch A Circuit | code p0122 | p0122 obd2

P0122 | P0122 Throttle Pedal Position Switch A Circuit | code p0122 | p0122 obd2

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📺 Welcome to IG Garage!
In today’s video, we’ll explain OBD-II Trouble Code P0122, which stands for:
"Throttle/Pedal Position Sensor/Switch A Circuit Low Input"

❓ What is Code P0122?
The P0122 code indicates that the signal from the Throttle Position Sensor (TPS) or Accelerator Pedal Position Sensor is lower than expected by the Powertrain Control Module (PCM).

This sensor tells your car how much you are pressing the accelerator pedal so that it can adjust fuel and air delivery accordingly.

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⚠️ Symptoms of P0122:
🚨 Check Engine Light ON

🛞 Poor throttle response or sluggish acceleration

🔥 Rough idle or stalling

🛑 Limp Mode (Reduced engine power to prevent damage)

⚠️ Poor fuel economy

🔍 Common Causes:
🧯 Faulty Throttle Position Sensor (TPS) or Pedal Position Sensor

🔌 Loose, corroded, or damaged sensor connectors

⚡ Damaged or shorted wiring

⚙️ Faulty or dirty throttle body

❌ PCM failure (rare)

🛠️ How to Fix Code P0122:
🔍 Inspect wiring and connectors related to the TPS and pedal sensor

🧹 Clean dirty connections

🧪 Test the TPS and Pedal Position Sensor with a multimeter

🔄 Replace the faulty TPS or Accelerator Pedal Sensor if necessary

🔧 Repair any damaged or shorted wires

📲 Clear the code using an OBD2 scanner after fixing the issue

📍 Sensor Location:
✅ You’ll find the sensors:

Throttle Position Sensor attached to the throttle body

Pedal Position Sensor mounted at the accelerator pedal

Always refer to your vehicle’s service manual for exact locations.

💰 Estimated Repair Cost:
TPS or Pedal Sensor Replacement: ₹1,200 – ₹3,000

Wiring Repair: ₹500 – ₹1,000

Diagnostic Charge: ₹500 – ₹1,000

✅ Final Advice:
A faulty throttle or pedal sensor can seriously affect drivability and safety. Address the P0122 code quickly to maintain smooth acceleration and engine performance!

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