Code p1065
03-01-2017, 02:04 PM
#1
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Location: New Britain CT
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Code p1065
I got a code p1065 CPM backup circuit malfunction. I tried to reset the ecu and it dosent fix it. As i drive it runs rough at low rpms/startup and the check engine light blinks and sometimes dosent blink. Anyone know what could be the problem?
03-01-2017, 02:34 PM
#2
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03-01-2017, 04:31 PM
#3
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One pin of the ECU is hot-wired to the battery to keep certain memory functions alive, even with the ignition OFF. A P1065 DTC means that the ECU isn't seeing the proper voltage at this pin. There could be a problem with the fuse, the wiring harness, or the connector, or the problem could be in the ECU itself.
03-02-2017, 03:48 AM
#4
This problem has occurred before if you have a scanner and clear the code it should take care of all problems. I've had that happen before and this is what fixed it. Have you had your battery disconnected for a while?
03-03-2017, 06:46 AM
#6
Damn that sucks. Maybe try to reset the ECU by leaving the battery unplugged for a while. If all else fails Nissan could use their consult machine to pinpoint the issue. Idk even how much an ECU costs these days lol
11-10-2020, 06:52 AM
#7
The same thing happened to me and yes I did had the battery disconnected for about a week. Did the throttle position relearn now SEL comes on when I accelerate any Ideas?