Hours: 07–23 daily

TuningBot DTC Database · v4.37.14

P1486 Diagnostic Trouble Code (6 interpretations)

6 manufacturer-specific interpretations across 6 manufacturers in the TuningBot DTC database.

P · PowertrainEmissionsOBD2

Chrysler

1 interpretation
P1486
Evaporative emission (EVAP) system - blockage detected Chrysler · emissions Data confidence 62%

The control module detected a fault associated with the Evaporative emission (EVAP) system - blockage detected circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.

Possible causes

  • Hose connection(s)
  • hose blocked/trapped
  • EVAP canister

Honda

1 interpretation
P1486
Thermostat - range/performance problem Honda · thermal_management Data confidence 62%

The control module judged the Thermostat behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Thermostat
  • cooling system

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information

Hyundai

1 interpretation
P1486
EGR Solenoid Valve Vent Open or Short Hyundai · emissions Data confidence 62%

The control module detected an open circuit or short circuit condition in the EGR Solenoid Valve Vent circuit. This is the manufacturer-specific definition used by Hyundai.

Mazda

1 interpretation
P1486
Exhaust gas recirculation (EGR) valve - malfunction Mazda · emissions Data confidence 62%

The control module detected improper operation of the Exhaust gas recirculation (EGR) valve. This is the manufacturer-specific definition used by Mazda.

Possible causes

  • Wiring
  • EGR valve
  • ECM

Mitsubishi

1 interpretation
P1486
EVAP Leak Monitor Pinched Hose Found Mitsubishi · emissions Data confidence 80%

The control module detected a condition consistent with a leak affecting the EVAP. This is the manufacturer-specific definition used by Mitsubishi.

Volvo

1 interpretation
P1486
Engine coolant blower motor relay - signal low Volvo · climate_control Data confidence 62%

The control module detected that the Engine coolant blower motor relay signal stayed below the expected range. This is the manufacturer-specific definition used by Volvo.

Possible causes

  • Wiring short to ground
  • engine coolant blower motor relay

Related and nearby codes

How to read P1486

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

486

Specific fault index within the subsystem.

Frequently asked questions about P1486

What does P1486 mean?

Diagnostic Trouble Code (6 interpretations). The control module detected a fault associated with the Evaporative emission (EVAP) system - blockage detected circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.

Is P1486 generic or manufacturer-specific?

P1486 is a manufacturer-specific code. In this database it is documented for: Chrysler, Honda, Hyundai, Mazda, Mitsubishi, Volvo. The same number can mean something different on other brands.

Can TuningBot remove P1486 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningDyno-tested results by model and engine See the results →

← Search the full DTC database