2016 Honda HRV EX
A few days ago my check engine light, (P)! warning, and flashing red “PARK” warning all came on while driving. The red “PARK” warning still flashes intermittently while driving, including while accelerating. Weirdly, sometimes when I fully press the brake pedal the flashing stops, but other times it continues flashing even with the brake engaged. So there seems to be some inconsistency there.
O’Reilly scanned it and got codes:
- P145C
- P0497
Mechanic suspected the vapor canister purge valve was intermittently stuck closed, so I just had the purge valve replaced today.
Problem is… within literally 4 minutes of driving it home, the same warnings came back again.
Symptoms/details:
- No gas smell
- Gas cap is fully tightened
- No stalling
- No rough idle
- No transmission slipping feeling
- Car drives completely normal otherwise
- Brakes feel normal
- Parking brake still engages/disengages properly
- No overheating
- Car has also randomly started making the internal lock/unlock clicking sound by itself while driving, even when I’m not touching the locks. Last week it did it repeatedly for about 35 seconds straight. Did it again, twice today for about 10 seconds each. Started maybe 3 weeks ago?
Also noticed one battery terminal has noticeable corrosion, although O’Reilly said battery/alternator voltage tested fine.
Does this sound more like:
- lingering EVAP issue?
- battery/ground/electrical issue?
- brake switch/parking brake module?
- Honda electrical gremlin? 😭
Would appreciate any ideas before I start throwing random parts at it.