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P0203 on VOLKSWAGEN TIGUAN

Severity
Medium
NHTSA Reports
2
Most Affected
2018

What P0203 Means on Your VOLKSWAGEN TIGUAN

Real VOLKSWAGEN TIGUAN Owner Reports (Source: NHTSA Complaints Database)

"Seat belt light on. Car went into limp mode while on the highway. Seat belt acted like it was loose. Went for scan and it pulled up diagnostic code P0203 which is Replace Fuel injector wiring harness. Saying Cylinder 3 circuit malfunction. Also threw code P050B."

— 2018 VOLKSWAGEN TIGUAN owner • AIR BAGS,FUEL/PROPULSION SYSTEM • Filed 05/14/2025

"On multiple occasions, subject vehicle displayed check engine light and epc light at random intervals, causing car to unexpectedly be limited to 4,000 rpm and unable to accelerate past 40mph."

— 2018 VOLKSWAGEN TIGUAN owner • POWER TRAIN,ELECTRICAL SYSTEM,ENGINE • Filed 03/23/2019

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of P0203 on VOLKSWAGEN TIGUAN

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2018
2

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 2
    Get a proper diagnosis

    A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.

  3. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

P0203 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026