DTC P145F, P1461, P1462, P24C1

DTC P145F  : EVAP Leak Check Module Pressure Sensor Range/Performance Problem

DTC P1461  : EVAP Leak Check Module Pressure Sensor Shifts

DTC P1462  : EVAP Leak Check Module Pressure Decompression Defect

DTC P24C1  : Canister Change Over Valve Stuck Close

Special Tools Required 

Vacuum Pump/Gauge, 0-30 inHg Snap-on YA4000A or equivalent, commercially available 

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode.

   -4. Turn the vehicle to the ON mode.

   -5. Select the EVAP TEST in the Function Test Menu, then select EVAP Leak Check Module Test with the HDS.

   EVAP TEST

   Is the result OK?

   YES 

   If the test result is PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the EVAP leak check module and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot .

   NO 

   The failure is duplicated. Go to step 2.

2. EVAP leak check module drain passage check

   -1. Remove the fuel tank .

   -2. Disconnect the drain hose (A) from the EVAP leak check module (B), then connect the pressure fitting of the vacuum pump/gauge, 0-30 inHg (C), to the drain hose as shown.

   Courtesy of HONDA, U.S.A., INC.

   -3. Slowly pressurize the drain passage while watching the gauge to check the blockage in the drain passage.

   Does it hold a pressure?

   YES 

   Remove the blockage from them, or replace the part(s) if needed.

   NO 

   Replace the EVAP leak check module .