P0220

High Severity

Throttle/Pedal Position Sensor B Circuit

Fuel System

What Does P0220 Mean?

The secondary TPS (sensor B) has a circuit fault. Modern drive-by-wire systems use two TPS for redundancy.

Common Fix

Replace throttle body or TPS

Estimated Cost (DIY)

$50 - $250

Symptoms

  • ⚠️Reduced power mode
  • ⚠️Limp mode
  • ⚠️Poor throttle response
  • ⚠️Check engine light

Related Symptoms

Check engine light on

Common Causes

Faulty TPS Blikely
Wiring issue to TPS Bpossible
Faulty throttle bodypossible

How to Diagnose P0220

  1. 1Check throttle body connector
  2. 2Compare TPS A and TPS B readings
  3. 3Check wiring for damage
  4. 4Replace throttle body if integrated

OEM Diagnostic Flowchart

Scroll to load technician if/then branches.

Read live data and freeze frame for P0220 to pinpoint the cause before buying parts.

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Related Resources

Repair guides, symptom pages, and wiring diagrams related to P0220.

OEM Manual Evidence

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2013 GMC Truck Yukon XL Denali AWD V8-6.2L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali AWD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...

2013 GMC Truck Yukon XL Denali 2WD V8-6.2L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...

2013 GMC Truck Yukon XL 4WD V8-6.0L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-6.0L Service Manual | Operation CHARM Operation CHARM : Car repair...

2013 GMC Truck Yukon XL 4WD V8-5.3L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-5.3L Service Manual | Operation CHARM Operation CHARM : Car repair...

Related Symptoms

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Check engine light onSymptom Hub

A check-engine light is a graph entry point into code pages, symptom-specific diagnosis, and the exact repair categories most often associated with those failures.

Exact Vehicle Hubs

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2013 Gmc Truck Yukon Xl 4wd V8 5.3l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0220.

2013 Gmc Truck Yukon Xl 4wd V8 6.0l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0220.

2013 Gmc Truck Yukon Xl Denali 2wd V8 6.2l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0220.

2013 Gmc Truck Yukon Xl Denali Awd V8 6.2l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0220.

Related Codes

P0221: Throttle/Pedal Position Sensor B Range/PerformanceRelated

TPS B reading is out of expected range compared to other throttle inputs.

P0222: Throttle/Pedal Position Sensor B Circuit LowRelated

TPS B voltage is too low.

P0223: Throttle/Pedal Position Sensor B Circuit HighRelated

TPS B voltage is above maximum expected.

Frequently Asked Questions

What is TPS B?
Modern cars have two throttle position sensors (A and B) for safety. If they disagree, the ECM enters reduced power mode.
Can I just replace one sensor?
On most modern cars, both TPS are integrated into the throttle body and must be replaced together.

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