ο‘
6. Check for Pending or Confirmed DTCs with the HDS.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0463 FUEL LEVEL SENSOR (FUEL GAUGE SENDING
UNIT) CIRCUIT HIGH VOLTAGE
Is DTC P0463 indicated?
YES : Check for poor connections or loose terminals at the gauge control module and the fuel gauge sending
unit. If the PCM was updated, substitute a known-good PCM See PCM REMOVAL AND
INSTALLATION or PCM UPDATE , then recheck. If the PCM was substituted, go to step 1.
NO : Troubleshooting is complete. If the PCM was substituted, REPLACE THE ORIGINAL PCM . If any
other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.
DTC P0496: EVAP SYSTEM HIGH PURGE FLOW DETECTED
Fig. 231: DTC Troubleshooting Flow Chart (P0496)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Special Tools Required
ο¬
ο¬
Vacuum Pump/Gauge, 0-30 inHg Snap-on YA4000A or equivalent, commercially available
Vacuum/Pressure Gauge, 0-4 inHg 07JAZ-001000B
NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot, and
review the general troubleshooting information See HOW TO TROUBLESHOOT
THE A/T SYSTEM or HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS
SYSTEMS .
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0496 EVAP SYSTEM HIGH PURGE FLOW
DETECTED
1. Problem verification:
ο‘
1. Turn the ignition switch to ON (II).
ο‘
2. Clear the DTC with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or
HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
ο‘
3. Select the EVAP TEST in the INSPECTION MENU, and do the FUNCTION TEST with the
HDS.
NOTE:
If the test could not be completed because of another DTC, do the
troubleshooting for that DTC.
Is the result OK?
YES : Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at
the FTP sensor, the EVAP canister purge valve, the EVAP canister vent shut valve, and the PCM.
NO : Go to step 2.
2. EVAP canister purge valve open stuck check:
ο‘
1. Select EVAP TEST in the INSPECTION MENU, and do the EVAP PCS OFF in the SINGLE
SOLENOID with the HDS.
ο‘
2. Disconnect the vacuum hose (A) from the EVAP canister purge valve (B). Connect a T-fitting
(C), a vacuum gauge, and a vacuum pump/gauge, 0-30 inHg, to the EVAP canister purge valve as
shown.
Fig. 232: Connecting T-Fitting, Vacuum Gauge And Vacuum Pump/Gauge To EVAP
Canister Purge Valve
Courtesy of AMERICAN HONDA MOTOR CO., INC.
ο‘
ο‘
3. Apply about 2 kPa (0.6 inHg, 15 mmHg) of vacuum to the purge control solenoid valve.
4. Do the EVAP PCS ON in the SINGLE SOLENOID with the HDS.
Does the vacuum release immediately?
YES : REPLACE THE EVAP CANISTER VENT SHUT VALVE , then do the repair verification .
NO : REPLACE THE EVAP CANISTER PURGE VALVE , then do the repair verification .
REPAIR VERIFICATION
ο‘
ο‘
1. Turn the ignition switch to ON (II).
2. Reset the PCM with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or HOW
TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
ο‘
ο‘
3. DO THE PCM IDLE LEARN PROCEDURE .
4. Select the EVAP TEST in the INSPECTION MENU, and do the FUNCTION TEST with the HDS.
Is the result OK?
YES : Troubleshooting is complete.
NO : Check for poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, the
EVAP canister vent shut valve, and the PCM. then go to step 1.
DTC P0497: EVAP SYSTEM LOW PURGE FLOW DETECTED
2024 Honda CR-V Owner's Manual
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2021 Honda CR-V Owner's Manual
2018 Honda CR-V Owner's Manual
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