DTC P0498 (1.5 L Engine)
DTC P0498 : EVAP Canister Vent Shut Valve Circuit Low Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information .
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P0498 EVAP Canister Vent Shut Valve Circuit Low Voltage |
DTC (PGM-FI)
- Problem verification 1
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Start the engine, and let it idle without load (CVT in P or N, M/T in neutral) for at least 5 seconds.
-4. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P0498 EVAP Canister Vent Shut Valve Circuit Low Voltage Is DTC P0498 indicated?
YES
The failure is duplicated. Go to step 3.
NO
Go to step 2.
- Problem verification 2
-1. Select the EVAP TEST in the Function Test, then select the CVS ON in the SINGLE SOLENOID with the HDS.
EVAP TEST - SINGLE SOLENOID
-2. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P0498 EVAP Canister Vent Shut Valve Circuit Low Voltage Is DTC P0498 indicated?
YES
The failure is duplicated. Go to step 3.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the EVAP canister vent shut valve 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 .
- Open wire check (IGPS (LAF) line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
EVAP canister vent shut valve 2P connector -3. Turn the vehicle to the ON mode.
-4. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode EVAP canister vent shut valve 2P connector: disconnected Test point 1 EVAP canister vent shut valve 2P connector (female terminals) No. 1: Test point 2 Body ground Is there battery voltage?
YES
Go to step 4.
NO
Check the No. A37 fuse . If the fuse is OK, repair an open in the IGPS (LAF) wire between the No. A37 fuse and the EVAP canister vent shut valve.
- EVAP canister vent shut valve internal resistance check
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. At the vent shut valve side, measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode EVAP canister vent shut valve 2P connector: disconnected Test point 1 EVAP canister vent shut valve 2P connector (male terminals) No. 1 (EVAP canister vent shut valve side): Test point 2 EVAP canister vent shut valve 2P connector (male terminals) No. 2 (EVAP canister vent shut valve side): Is there about 25-30 Ω at room temperature?
YES
Go to step 5.
NO
- Shorted wire check (VSV line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Jump the SCS line with the HDS, and wait more than 1 minute.
-3. Disconnect the following connector.
PCM connector A (50P) -4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode EVAP canister vent shut valve 2P connector: disconnected PCM connector A (50P): disconnected Test point 1 PCM connector A (50P) No. 6 Test point 2 Body ground Is there continuity?
YES
Repair a short in the VSV wire between the PCM (A6) and the EVAP canister vent shut valve.
NO
Go to step 6.
- Open wire check (VSV line)
-1. Connect terminals A and B with a jumper wire.
Terminal A EVAP canister vent shut valve 2P connector (female terminals) No. 2: Terminal B Body ground -2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode EVAP canister vent shut valve 2P connector: disconnected PCM connector A (50P): disconnected EVAP canister vent shut valve 2P connector No. 2: jumped to body ground Test point 1 PCM connector A (50P) No. 6 Test point 2 Body ground Is there continuity?
YES
The VSV wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .
NO
Repair an open in the VSV wire between the PCM (A6) and the EVAP canister vent shut valve.