2009年6月29日 · I keep throwing a P1621 code...Control module long term memory loss. Any of you guys know what this is. I've never ran my DTC's and not thrown this code.

2011年3月13日 · used triple dog power pup to check for codes. this is what i got code p1621 . I looked up code it said modules ECM , Description - control module long term memory performance. what is it ? should i be concerned? does it need fixed? thanks

2009年1月12日 · P0700 - Transmission control system malfunction P1621 - Control module long term memory performance Anybody have any idea's? Check engine light come on and the trans defaulted to second gear. When I put it in reverse or drive, it slams in gear so hard it feels like the trans is going to end...

2006年2月28日 · Anyone running Triple Dog and getting a P1621 code when checking DTC?

2008年12月18日 · My truck is throwing a code of P1621 and I don't know how to get ride of it. I have tried to look it up and have had no luck. Can anybody tell me what it really means and how to get ride of it?

2010年8月26日 · My truck has thrown a P1621 code[Long term Memory Performance]. What are my prospects; could it last or is it a matter of time before it goes. Truck runs fine.

2010年7月30日 · I found this code when i ran a code check just for shits on my edge. its a P1621 and it says Transmission control module (TCL) long term memory performance. Ive ran the trans relearn and was wondering if thats all it was.

2009年3月5日 · I have a 02 chevrolet dmax, with the triple dog tunner. The SIL comes on frequently and when i scan it trouble codes (po360, p0463, p1621) show. All codes...

2009年1月1日 · Ok, I know about the trouble code lookup tool but what do the codes mean exactly? P1621- Long term memory performance (Predator says "customer snapshot...

2008年2月21日 · I got a couple of codes, checked them and this is what they seemed to be. Two over boost codes, P0234 and P0238, but at the same time I also have a P1621. I looked it up and this is what it says, Code: P1621 Modules: ECM Description: Control Module...