Volvo Land Rover Automotive Error Code P1220: How to Fix It

Medium 1-2 hours High Severity Verified June 2026
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Error Code
P1220
Brand
Volvo Land Rover
Product Type
automotive
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P1220 indicates a problem with the throttle control system signal range in your Volvo or Land Rover. This means the Engine Control Module (ECM) has detected that the throttle position signal is outside the expected range. If left unchecked, it can cause poor acceleration, limp mode, or stalling.
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Tools You'll Need

How to Fix Error Code P1220

  1. Safety First and Scan for Additional Codes

    Always work in a well-ventilated area. Disconnect the battery negative terminal before working on the throttle body.

  2. Visually Inspect the Throttle Body and Wiring

  3. Test the Throttle Position Sensor (TPS)

    If the engine is warm, allow it to cool before working near the throttle body.

  4. Check for Vacuum Leaks

  5. Inspect the Accelerator Pedal Position Sensor

    Beware of sharp edges under the dashboard.

  6. Test the Throttle Actuator Control (TAC) System

    Do not force the throttle plate open manually; it may damage the actuator.

  7. Perform a Throttle Relearn Procedure

  8. Replace the Throttle Body Assembly (if needed)

    Ensure the battery is disconnected before removing the throttle body.

Parts You May Need

Throttle Position Sensor
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Throttle Body Assembly
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Accelerator Pedal Position Sensor
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Throttle Position Sensor
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Throttle Body Assembly
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Accelerator Pedal Position Sensor
Check Price on Amazon
Throttle Position Sensor
Check Price on Amazon
Throttle Body Assembly
Check Price on Amazon
Accelerator Pedal Position Sensor
Check Price on Amazon
Throttle Position Sensor
Check Price on Amazon
Throttle Body Assembly
Check Price on Amazon
Accelerator Pedal Position Sensor
Check Price on Amazon
Throttle Position Sensor
Check Price on Amazon
Throttle Body Assembly
Check Price on Amazon
Accelerator Pedal Position Sensor
Check Price on Amazon
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When to Call a Professional

If you have performed the visual inspection, checked the TPS and wiring, and the error persists, or if you are not comfortable working with electrical systems, take the vehicle to a certified mechanic. A professional can perform advanced diagnostics with specialized equipment.

Frequently Asked Questions

What does error code P1220 mean on a Volvo or Land Rover?
P1220 indicates a throttle control system signal range error. The ECM detects the throttle position signal is out of expected range, which can cause reduced power, limp mode, or stalling.
Can I drive with a P1220 code?
It is not recommended. The vehicle may enter limp mode, limiting speed and acceleration. Continuing to drive could lead to unsafe conditions or further damage.
How much does it cost to fix P1220?
Costs vary: cleaning the throttle body may be under $50, while replacing the throttle body assembly can range from $200 to $800+ including labor. Diagnostic fees extra.
Will a throttle relearn fix P1220?
A relearn may resolve the code if it was triggered after a battery disconnect or throttle cleaning. However, if a component is faulty, relearn alone won't fix it.
What other codes are related to P1220?
Common related codes include P0120 (TPS circuit malfunction), P0220 (TP sensor B circuit), and P2135 (throttle/pedal position correlation).

Related Error Codes