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Hi everyone,
I recently did a service on my ’93 Accord, brakes, oil change, and changed the transmission fluid. Since getting the car back on the road the D4 light on the dash has stayed on (continuously on, not blinking) regardless of which gear I’m in. From a dead stop moving forward but not reverse, the vehicle feels sluggish (almost as if I’m driving with the parking brake on) but once I’m moving it seems to drive and shift fine. I checked for codes but when I jump the connector the D4 light does not blink, it just stays solid. I rechecked the transmission fluid level and noticed it was low, so I added more fluid and now the level reads fine. I disconnected the battery to clear the memory but the issues remain. I’ve done some searching online but haven’t found answers to my specific situation (if the answer is already out there then I apologize for reposting and offer many thanks to anyone who can point me to it) Some people say that the D4 light stuck on is an indicator of a bad TCU but given that I just serviced the transmission, I find it hard to believe that my issue is not related. Thanks everyone for your help.
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