Diagnostic Aids

WARNING: This page is about a different variant/trim than selected.

An intermittent condition could be caused by an improperly installed or damaged EVAP canister purge solenoid valve or a temporary sticking of the EVAP canister purge solenoid valve. Inspect for debris in the EVAP system. For intermittent conditions refer to Intermittent Conditions .

DTC P0496

Step	Action	Values	Yes	No
Schematic Reference: Evaporative Emissions Hose Routing Diagram
1	Did you perform the Diagnostic System Check - Vehicle?	-	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Start the engine. Seal the evaporative emission (EVAP) system using the Purge/Seal function with a scan tool. Observe the fuel tank pressure (FTP) sensor parameter with a scan tool. Is the FTP sensor parameter within the specified value?	-1 to +1 H2O	Go to Diagnostic Aids	Go to Step 3
3	Is DTC P0651 also set?	-	Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information	Go to Step 4
4	Turn OFF the ignition. Disconnect the EVAP purge pipe from the EVAP canister purge solenoid valve. Turn ON the ignition, with the engine OFF. Observe the FTP sensor parameter with a scan tool. Is the FTP sensor parameter within the specified range?	-1 to +1 H2O	Go to Step 5	Go to Diagnostic Aids
5	Replace the EVAP canister purge solenoid valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement . Did you complete the replacement?	-	Go to Step 6	-
6	Connect all EVAP hardware that was previously disconnected. Start and idle the engine. Seal the EVAP system using the Purge/Seal function with a scan tool. Observe the fuel tank pressure sensor parameter with a scan tool. Is the fuel tank pressure sensor parameter within the specified range?	-1 to +1 H2O	Go to Step 7	Go to Step 2
7	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