ο‘
6. Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC Pending DTC Freeze Frame
P1549 CHARGING SYSTEM HIGH VOLTAGE
Is DTC P1549 indicated?
YES : Replace the alternator See ALTERNATOR OVERHAUL or ALTERNATOR REMOVAL
AND INSTALLATION , then do the repair verification .
NO : Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at
the alternator and the under-hood fuse/relay box.
REPAIR VERIFICATION (OBD STATUS CHECK)
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‘
ο‘
3. DO THE PCM IDLE LEARN PROCEDURE .
4. Start the engine.
5. Check under these conditions:
ο¬
ο¬
ο¬
A/C off
Headlights off
Rear window defogger off
ο‘
6. Monitor the OBD STATUS for DTC P1549 in the DTCs MENU with the HDS.
DTC Description
OBD Status
P1549 CHARGING SYSTEM HIGH VOLTAGE
Does the HDS indicate PASSED, FAILED, or NOT COMPLETED?
PASSED : Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated, go to the
indicated DTC's troubleshooting.
FAILED : Go to step 1 and recheck.
NOT COMPLETED : Meet the test condition, and check the OBD STATUS again.
DTC P154A: BATTERY SENSOR INTERNAL FAILURE
Fig. 307: DTC Troubleshooting Flow Chart (P154A)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 .
DTC Description
Confirmed DTC Pending DTC Freeze Frame
P154A BATTERY SENSOR INTERNAL FAILURE
1. Problem verification:
ο‘
ο‘
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or
HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS , and wait 5 seconds.
ο‘
3. Check for Pending or Confirmed DTCs with the HDS.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P154A BATTERY SENSOR INTERNAL
FAILURE
Is DTC P154A indicated?
YES : REPLACE THE BATTERY SENSOR .
NO : Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at
the battery sensor and the PCM.
DTC P1658: ETCS CONTROL RELAY ON MALFUNCTION
2024 Honda CR-V Owner's Manual
2023 Honda CR-V Owner's Manual
2021 Honda CR-V Owner's Manual
2018 Honda CR-V Owner's Manual
2015 Honda CR-V Owner's Manual
