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Can't clear codes with OBDII reader

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10K views 2 replies 2 participants last post by  Phoenixilva  
Subaru Keyless Entry, Security Alarm, Immobilizer Key, Remote Start Systems. Most years and models

Here's a known issue: Most OTC scan tools do not communicate properly with Subaru. Its not just yours. If you are getting power to the tool, then its most likely the tool. Some read, but can't command an erase.

If you want to clear it, disconnect the battery. Then see if the engine light comes on again after connecting and restart. If the code comes right back, its probably a fail. The ECM picks up bad sensors, like heater circuits, knock sensor, MAP, BARO, etc., on first key cycle. Other codes come up after drive cycle.