▲ 6 r/9thgencivic
2014 Civic only starts with OBD scanner plugged in — need advice
Honda Civic. He had recently replaced the alternator, battery, and thermostat. The car eventually broke down, and now it will only start and run if an OBD2 scanner is plugged in.
An electrical mechanic checked the grounds but couldn’t find the exact issue. He thinks it could possibly be the PCM.
Has anyone dealt with something like this before? What should I check first before replacing the PCM? Any tips or ideas would be greatly appreciated.
The car runs fine while the scanner is plugged in, but shuts off when I unplug it.
u/AdElectrical6903 — 2 days ago