Diagnostic Aids
- The EVAP system tests run when the engine is first started and meets the Conditions for Running the DTC.
- An intermittent condition could be caused by an improperly installed or damaged EVAP canister purge solenoid valve, or by a temporary blockage in the EVAP canister purge solenoid valve.
- For intermittent conditions refer to Intermittent Conditions .
DTC P0496
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Evaporative Emissions (EVAP) Hose Routing Diagram Connector End View Reference: Engine Controls Connector End Views or Powertrain Control Module (PCM) Connector End Views |
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| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 |
|
- | Go to Diagnostic Aids | Go to Step 3 |
| 3 |
|
-1 to +1 in H2O | Go to Step 4 | Go to Step 5 |
| 4 |
|
- | Go to Step 7 | Go to Diagnostic Aids |
| 5 | Test for an intermittent and for a poor connection at the FTP sensor. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 8 | Go to Step 6 |
| 6 | Replace the FTP sensor. Refer to Fuel Tank Pressure Sensor Replacement
. Did you complete the replacement? |
- | Go to Step 8 | - |
| 7 | Replace the EVAP canister purge solenoid valve. Refer to Evaporative Emission (EVAP) Canister Purge Solenoid Valve Replacement
. Did you complete the replacement? |
- | Go to Step 8 | - |
| 8 | Perform the Service Bay Test. Refer to Service Bay Test
. Does the scan tool indicate that the Service Bay Test passed? |
- | Go to Step 9 | Go to Step 3 |
| 9 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information | System OK |