P0457 on Acura ZDX
Factory diagnostic protocol and troubleshooting wire for fault code P0457 specifically for the Acura ZDX (2024–2026, Single / Dual Motor EV (340HP / Type S 500HP / SH-AWD)).
1. Symptoms of P0457 on Acura ZDX
When the Engine Control Module (ECM/PCM) on your Acura ZDX (Single / Dual Motor EV (340HP / Type S 500HP / SH-AWD)) logs fault code P0457, drivers commonly observe:
2. Most Likely Causes on Acura ZDX
Historical warranty claims and technical repair bulletins for Acura ZDX point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Acura ZDX
Unscrew gas cap, inspect rubber seal for cracks, reinstall and turn until it clicks firmly 3 times. on the Acura ZDX equipped with Single / Dual Motor EV (340HP / Type S 500HP / SH-AWD).
Check the metal filler neck lip for rust, grit, or dings preventing a tight seal. on the Acura ZDX equipped with Single / Dual Motor EV (340HP / Type S 500HP / SH-AWD).
If rubber gasket is flattened or hardened, buy a factory OEM gas cap. on the Acura ZDX equipped with Single / Dual Motor EV (340HP / Type S 500HP / SH-AWD).
Clear DTCs with scanner, or drive vehicle for 3–5 days until the PCM runs an overnight EVAP vacuum decay test and turns off the light automatically. on the Acura ZDX equipped with Single / Dual Motor EV (340HP / Type S 500HP / SH-AWD).
Equipment for Diagnosing Acura ZDX (P0457)
OEM Tethered Fuel Gas Cap with O-Ring
Tight-sealing factory fuel cap resolves common EVAP small/large leak codes without workshop visits.
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 Acura ZDX
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Acura ZDX:
4. Acura ZDX P0457 FAQs
What causes code P0457 to trigger on a Acura ZDX?
On the Acura ZDX (Single / Dual Motor EV (340HP / Type S 500HP / SH-AWD)), P0457 is most frequently caused by Loose, unclicked, or forgotten gas cap or Cracked, dried out, or missing rubber O-ring gasket on fuel cap.
Where is the OBD-II port located on my Acura ZDX?
On the Acura ZDX, the 16-pin DLC diagnostic connector is located Driver lower dash bulkhead EV interface. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Acura ZDX with code P0457?
Yes. Safe to drive indefinitely, but fuel vapors escape into the atmosphere. Given that P0457 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.