P0204 on Honda Passport
Factory diagnostic protocol and troubleshooting wire for fault code P0204 specifically for the Honda Passport (2020–2026, 3.5L i-VTEC V6 (280HP / AWD TrailSport)).
1. Symptoms of P0204 on Honda Passport
When the Engine Control Module (ECM/PCM) on your Honda Passport (3.5L i-VTEC V6 (280HP / AWD TrailSport)) logs fault code P0204, drivers commonly observe:
2. Most Likely Causes on Honda Passport
Historical warranty claims and technical repair bulletins for Honda Passport point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Honda Passport
Measure resistance across pins (12–16 ohms). on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Check that ECM pulse reaches the connector. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Replace the faulty injector with OEM unit. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Clear DTC memory and confirm smooth operation. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Equipment for Diagnosing Honda Passport (P0204)
Honda Passport OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for Honda Passport.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
Other Common Fault Codes on Honda Passport
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Honda Passport:
4. Honda Passport P0204 FAQs
What causes code P0204 to trigger on a Honda Passport?
On the Honda Passport (3.5L i-VTEC V6 (280HP / AWD TrailSport)), P0204 is most frequently caused by Faulty Cylinder 4 fuel injector or Broken wiring harness.
Where is the OBD-II port located on my Honda Passport?
On the Honda Passport, the 16-pin DLC diagnostic connector is located Lower driver steering column trim. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Honda Passport with code P0204?
No. Cylinder 4 is disabled, causing rough running and unburned fuel delivery issues. Given that P0204 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.