DTC P1486: EVAP Leak Monitor Pinched Hose: Description

EVAP leak monitor is monitored after cold start with ambient temperature of 40-90°F (4.4-32°C) and coolant temperature within 10°F (-12°C) of ambient temperature. If PCM detects a pinched hose, DTC will not set until EVAP monitor performs system test. If system test fails, DTC will set. DTC will set in Powertrain Control Module (PCM) memory when EVAP monitor senses no airflow through EVAP system. Possible causes for DTC to set are: blocked fuel tank-to-EVAP canister hose, blocked Leak Detection Pump (LDP) hose, pinched EVAP purge solenoid-to-EVAP canister hose, blocked LDP or blocked EVAP canister.