I have a 2011 Chevrolet Equinox with the 2.4 engine, 148k miles. I can start it up and drive it just fine, but when I put it in park after driving it, the check engine light comes on and it will not go into drive. When I put it in drive, The "D" on the odometer starts flashing and the car does not go forward. I did pull the DTC - the only one is P0601 (Transmission Control Module Read Only Memory Performance). I cleared the code and drove it down the road, it shifted fine. Got back home, put it in park, and the check engine light came back on - same code again. I'm stumped. Could it be the TCM?
2011 2.4 Won't Move, "D" Flashing - P0601
- Thread starter cajacobs
- Start date
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Hey Vern!
Active member
The flashing D is to let you know there is an issue with the transmission module.
P0601 is a memory issue with the PCM. it could be a bad connection in the wires or a failing battery or even a bad PCM.
P0601 is a memory issue with the PCM. it could be a bad connection in the wires or a failing battery or even a bad PCM.
I hope it's just a bad connection. I'll investigate further tomorrow. The car drove perfectly fine until the timing chain broke... just replaced the engine. As soon as I replaced the engine, this transmission problem began.
Hey Vern!
Active member
best of luck! It sounds like the new engine may have been the trigger. I would recheck every connection and make sure they are tight.I hope it's just a bad connection. I'll investigate further tomorrow. The car drove perfectly fine until the timing chain broke... just replaced the engine. As soon as I replaced the engine, this transmission problem began.
Hey Vern!
Active member
It isn't always that cut and dry, but I would always take a transmission warning seriously. Fixing it today, might save a rebuild tomorrow.
