C1288 on Honda Passport
Factory diagnostic protocol and troubleshooting wire for fault code C1288 specifically for the Honda Passport (2020–2026, 3.5L i-VTEC V6 (280HP / AWD TrailSport)).
1. Symptoms of C1288 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 C1288, 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
Monitor brake pressure transducer PID. It should read near 0 bar unpressed and climb smoothly to 80+ bar when pressing pedal. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Unplug ABS connector and check for bent pins or brake fluid contamination. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Replace the ABS HCU / pump assembly or send unit to a certified rebuilder to replace the internal pressure transducer. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Run scan tool automated bleed procedure to purge air from ABS valves, then bleed all 4 calipers. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Clear DTCs and road test to verify AdvanceTrac operation. on the Honda Passport equipped with 3.5L i-VTEC V6 (280HP / AWD TrailSport).
Equipment for Diagnosing Honda Passport (C1288)
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 C1288 FAQs
What causes code C1288 to trigger on a Honda Passport?
On the Honda Passport (3.5L i-VTEC V6 (280HP / AWD TrailSport)), C1288 is most frequently caused by Failed internal brake pressure transducer inside the ABS Hydraulic Control Unit (HCU) or Corroded pins in ABS module electrical connector.
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 C1288?
Caution. Normal hydraulic brakes work, but ABS, Traction Control, and AdvanceTrac are disabled. Given that C1288 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.