P0137 on Honda Passport
Factory diagnostic protocol and troubleshooting wire for fault code P0137 specifically for the Honda Passport (2020–2026, 3.5L i-VTEC V6 (280HP / AWD TrailSport)).
1. Symptoms of P0137 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 P0137, 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
Listen for exhaust ticking or black soot around flex pipe, flanges, and sensor bungs before the catalytic converter. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Monitor B1S2 voltage. Snap the throttle to enrich mixture; voltage should briefly spike above 0.8V. If it remains 0.0V–0.1V, sensor is defective or shorted. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Unplug harness, remove old sensor with 7/8 socket, install replacement sensor and plug firmly. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Clear DTCs and verify B1S2 holds steady between 0.45V and 0.75V during steady highway cruising. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Equipment for Diagnosing Honda Passport (P0137)
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 P0137 FAQs
What causes code P0137 to trigger on a Honda Passport?
On the Honda Passport (3.5L i-VTEC V6 (280HP / AWD TrailSport)), P0137 is most frequently caused by Exhaust leak upstream of or directly at the Sensor 2 bung letting in fresh air or Faulty downstream oxygen sensor.
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 P0137?
Yes. Vehicle is fully drivable, but Check Engine Light will remain illuminated. Given that P0137 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.