P0220
High SeverityThrottle/Pedal Position Sensor B Circuit
Fuel System
P0220 — Instant Answer
Throttle/Pedal Position Sensor B Circuit
Severity: HIGH SEVERITY
Meaning: The secondary TPS (sensor B) has a circuit fault. Modern drive-by-wire systems use two TPS for redundancy.
Safe to drive? NO if CEL is flashing. YES with caution if solid, but repair this week.
Estimated repair cost: $50 - $250
Most common causes:
- 1. Faulty TPS B (35-45% of cases)
- 2. Wiring issue to TPS B (10-25% of cases)
- 3. Faulty throttle body (10-25% of cases)
Symptoms
- ⚠️Reduced power mode
- ⚠️Limp mode
- ⚠️Poor throttle response
- ⚠️Check engine light
Related Symptoms
Common Causes
How to Diagnose P0220
- 1Check throttle body connector
- 2Compare TPS A and TPS B readings
- 3Check wiring for damage
- 4Replace throttle body if integrated
OEM Procedures for P0220
P0220 affects the Throttle Position Sensor. Found 9 OEM service manual procedures.
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Replacement - Replace Throttle Position Sensor
Replacement - Replace Throttle Position Sensor
Showing 8 of 9 procedures
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.
TopScan
$51.27
DIYers who want phone-based scanning
View on TOPDON
ArtiLink600
$99
DIYers working on ABS/airbag systems
View on TOPDONGot a repair estimate for P0220? Check if the quote is fair before ordering parts.
Parts & Tools for This Job
Common parts shoppers buy for P0220 Throttle/Pedal Position Sensor B Circuit.
Oxygen Sensor
Shop Amazon→
Spark Plugs
Shop Amazon→
Ignition Coils
Shop Amazon→
Mass Air Flow Sensor
Shop Amazon→
Fuel Injectors
Shop Amazon→
Engine Oil
Shop Amazon→
As an Amazon Associate, AllOEMManuals earns from qualifying purchases. Prices and availability may vary.
Turn This Into a Confident Next Step
Verify the likely fault first, then compare a quote before you approve expensive work.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
View factory recommended tools
OBD2 scanner
Read codes and freeze-frame data before you guess at the fault.
Most diagnostic jobs start with a scan tool and a verified code path.
Check SpecificationsBattery tester
Check cranking and charging health before replacing expensive parts.
A weak battery can mimic alternator or starter problems.
Check SpecificationsMultimeter kit
Confirm voltage, continuity, and sensor power with one simple kit.
A meter is the cheapest way to rule out a bad circuit fast.
Check SpecificationsRelated Resources
Repair guides, symptom pages, and wiring diagrams related to P0220.
OEM Manual Evidence
Browse →A L L Diagnostic Trouble Codes ( DTC ) — 2013 Cadillac CTS Coupe RWD V8-6.2L SC Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowle...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 Cadillac CTS Sedan RWD V8-6.2L SC Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowle...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 Cadillac CTS Wagon RWD V8-6.2L SC Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowle...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 Cadillac Escalade AWD V8-6.2L Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge...
Related Symptoms
Browse →Exact Vehicle Hubs
Browse →Open the exact vehicle hub grounded by OEM manual evidence related to P0220.
Open the exact vehicle hub grounded by OEM manual evidence related to P0220.
Open the exact vehicle hub grounded by OEM manual evidence related to P0220.
Open the exact vehicle hub grounded by OEM manual evidence related to P0220.
Related Codes
TPS B reading is out of expected range compared to other throttle inputs.
TPS B voltage is too low.
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.
Get the Complete Maintenance Schedule for P0220 drivers
Oil, filters, belts, brakes, and fluid intervals sent to your inbox. Unsubscribe anytime.
Not sure you want to DIY? Compare local shop pricing first.
Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-10-31