P1410

Wiring Diagram:

Circuit Description
Under the conditions that the engine is running and the fuel level is lower than a specified value, the EVAP Tank Pressure Control Solenoid Vacuum Valve is turned on by the Powertrain Control Module (PCM) and vacuum is applied to the diaphragm of the Tank Pressure Control Valve. Thus, the vapor passage of the Tank Pressure Control valve opens to allow continuity between the fuel tank and the EVAP canister. As a result, under the above conditions, the vapors in the fuel tank flows into the EVAP canister without being stopped by the Tank Pressure Control valve.

Conditions for Setting the DTC
Low voltage indicated with the ignition on and the fuel level higher than a specified value.

Action Taken When the DTC Sets
^ The Malfunction Indicator Lamp (MIL) will illuminate after two consecutive ignition cycles in which the diagnostic runs with the fault active.
^ The PCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Freeze Frame buffer.

Conditions for Clearing the MIL/DTC
^ The MIL will turn off after three consecutive drive cycles without a fault present.
^ A DTC will clear after 40 consecutive warm-up cycles without a fault.
^ The DTCs can be cleared by using a scan tool or by disconnecting the PCM battery feed.

Diagnostic Aids
Check for the following conditions:
^ A poor connection or damaged wiring harness. Inspect the wiring harness for damage and repair as necessary.
^ An incorrect fuel sensor level reading may cause this DTC to set.
^ After all the checks have been completed and a malfunction continues to occur, Refer to DTC P0450 and follow that table for diagnoses. P0450
If a DTC P1410 cannot be duplicated, the information included in the Freeze Frame data can be useful in determining vehicle operating conditions when the DTC was first set.

Test Description
The numbers below refer to the step numbers in the Diagnostic Table.
1. The Powertrain OBD System Check prompts the technician to complete some basic checks and store the Freeze Frame data on the scan tool if applicable. This creates an electronic copy of the data taken when the fault occurred. The information is then stored in the scan tool for later reference.
2. This step determines it the fault is present.
3. This step checks the power feed to the EVAP Tank Pressure Control Solenoid Vacuum Valve.
4. This step checks for a short to ground in the solenoid control feed.
5. This step checks for a short to open in the solenoid control feed.
7. This step checks the operation of the EVAP tank pressure control solenoid vacuum valve.