P0705 on Honda Passport
Factory diagnostic protocol and troubleshooting wire for fault code P0705 specifically for the Honda Passport (2020–2026, 3.5L i-VTEC V6 (280HP / AWD TrailSport)).
1. Symptoms of P0705 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 P0705, 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
Move gear selector through all positions while monitoring scan tool TR PID to see which gear positions fail to register. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Ensure the mechanical shift linkage fully clicks the transmission lever into the physical detent for Park and Neutral. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Use multimeter to check continuity across switch pins in Park, Reverse, Neutral, and Drive. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Loosen mounting bolts, use alignment pin to align sensor slot with transmission shaft in Neutral, torque bolts, or install new OEM sensor. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Clear DTCs and confirm engine starts in Park and Neutral, reverse lights activate, and gear display is accurate. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Equipment for Diagnosing Honda Passport (P0705)
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 P0705 FAQs
What causes code P0705 to trigger on a Honda Passport?
On the Honda Passport (3.5L i-VTEC V6 (280HP / AWD TrailSport)), P0705 is most frequently caused by Misaligned or faulty Transmission Range Sensor / Neutral Safety Switch (NSS) or Corroded or water-logged connector on transmission side.
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 P0705?
Caution. Vehicle may not start in Park, backup lights may not work, and transmission may lock in Limp Mode. Given that P0705 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.