I have a problem and don't know what the answer is so i need a tech to help. My uncle ran a diagnostic on my altima and it came back with P1605 A/T Diagnosis Communication Line What is this and how easy is it to fix? please i have kids and need to see if i can have my uncle to repair it, he's a diesal mechanic and doesn't have the same codes for it. Can any one please help me? Desprately seeking help.
IMy car goes super slow rpms get really high i think 2000 or more and then if you go about 60 mph then it seems fine but it jurks font and back and super slow till you get it up to 60 but stop and go just sucks!and thank you for helping if you could
1997 nissan altima
-
3Q Jay
- Posts: 2560
- Joined: Sat May 08, 2004 6:23 pm
- Car: 94 Q45a
95 Q45a (sold)
97 Q45t (sold)
01 B15 Sentra (Daughter's)
Also Mine...
2010 A6 Avant
1977 F-150 (460!) - Location: Florida Coast
Re: 1997 nissan altima (kidmom)
welcome to NICO. diagnosing over the internet is risky, since we only have what you write to go on, as opposed to seeing and driving the car.
You will get more insightful replies by providing detailed history, recent changes, and recent events or work performed on your car.
for this one, it would help to know the mileage, maintenance history (as complete as possible, going back 3 years or more), when the last time you installed the correct rated battery (group 24F, >100 minutes RC (reserve capacity)), what is the pedigree of your alternator (is it a nissan OEM, or some aftermarket junk)? measure the battery voltage after it sits overnight, measure it while cranking the engine, measure it again right after engine start, then after 5 minutes, then again with full complement of electrical accessories on and engine idling.
make sure battery terminal connectoions are clean and tite.problem is likely an upset of the TCU or 'transmission control module'. often brought on by stress of a mal-performing electrical system.
it could also be a real problem in the transmission, and running the transmission diagnostic (you posted a code from the engine computer, not the trans computer)may point to a failed component.
what is the condition of the ATF? compare new from bottle dex-III on a white paper towel side by side with what comes off your AT dipstick.does the transmission shift smoothly and at the correct speed on 1-->2,2-->3, 3-->4, lockup, 4-->3,4-->2, and 3-->2? if not, what precisely does it do?
You will get more insightful replies by providing detailed history, recent changes, and recent events or work performed on your car.
for this one, it would help to know the mileage, maintenance history (as complete as possible, going back 3 years or more), when the last time you installed the correct rated battery (group 24F, >100 minutes RC (reserve capacity)), what is the pedigree of your alternator (is it a nissan OEM, or some aftermarket junk)? measure the battery voltage after it sits overnight, measure it while cranking the engine, measure it again right after engine start, then after 5 minutes, then again with full complement of electrical accessories on and engine idling.
make sure battery terminal connectoions are clean and tite.problem is likely an upset of the TCU or 'transmission control module'. often brought on by stress of a mal-performing electrical system.
it could also be a real problem in the transmission, and running the transmission diagnostic (you posted a code from the engine computer, not the trans computer)may point to a failed component.
what is the condition of the ATF? compare new from bottle dex-III on a white paper towel side by side with what comes off your AT dipstick.does the transmission shift smoothly and at the correct speed on 1-->2,2-->3, 3-->4, lockup, 4-->3,4-->2, and 3-->2? if not, what precisely does it do?