G35 Sedan V35 2003-06 Discussion about the 1st Generation V35 G35 Sedan

Confused gears???

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Old Jun 4, 2020 | 05:41 AM
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2004 g35 sedan
Confused gears???

Hi everyone I'm new here but mainly posting to help out my brother. Thanks in advance for any help with this one.

So my brother has a 2004 g35 sedan rwd.
Recently he replaced his battery because the car would die if you left any light on for a while.
​​​​​​ So while tightening up the positive poll on the new battery he touched the negative poll with whatever tool he was using. Nothing happened immediately, but fast forward a week later he goes to turn the car on and puts the car in D and it won't move. So he puts it in R and it moves in reverse then he tries N and it moves in reverse as well. DS also doesn't work but it does show 1 on the dashboard.
Any ideas what it could be?
Thanks again
 
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Old Jun 4, 2020 | 12:15 PM
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Disconnect the battery and clean it up, also clean the transmission ground on the top of the timing chain cover, same with the engine to chassis ground from the timing chain cover to directly below the coolant reservoir.

There might also he a partially cooked fuse in the positive side fusible link holder, I would replace that entire thing since it's like $20.
 
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Old Jun 4, 2020 | 03:11 PM
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2004 g35 sedan
Originally Posted by cleric670
Disconnect the battery and clean it up, also clean the transmission ground on the top of the timing chain cover, same with the engine to chassis ground from the timing chain cover to directly below the coolant reservoir.

There might also he a partially cooked fuse in the positive side fusible link holder, I would replace that entire thing since it's like $20.
Thanks will definitely try to clean the grounds.

In a rush to type this last night I forgot to mention the most important part. The code reader puts out a code of p1815
 
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Old Jun 4, 2020 | 03:32 PM
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Originally Posted by Ox_man
Hi everyone I'm new here but mainly posting to help out my brother. Thanks in advance for any help with this one.

So my brother has a 2004 g35 sedan rwd.
Recently he replaced his battery because the car would die if you left any light on for a while.
​​​​​​ So while tightening up the positive poll on the new battery he touched the negative poll with whatever tool he was using. Nothing happened immediately, but fast forward a week later he goes to turn the car on and puts the car in D and it won't move. So he puts it in R and it moves in reverse then he tries N and it moves in reverse as well. DS also doesn't work but it does show 1 on the dashboard.
Any ideas what it could be?
Thanks again
Check out the FSM

https://www.nicoclub.com/service-man...an/2004/at.pdf

See page AT -224

AT-224DTC P1815 MANUAL MODE SWITCH

On Board Diagnosis LogicACS000DVThis is not an OBD-II self-diagnostic item. Diagnostic trouble code “MANU MODE SW/CIR” with CONSULT-II is detected when TCM monitors Man-ual mode, Non manual mode, Up or Down switch signal, and detects as irregular when impossible inputpattern occurs 1 second or more.Possible CauseACS000DWHarness or connectors(These switches circuit is open or shorted.)Mode select switch (Built into A/T control device)Position select switch (Built into A/T control device)

 
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Old Jun 5, 2020 | 01:06 AM
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2004 g35 sedan
Originally Posted by telcoman
Check out the FSM

https://www.nicoclub.com/service-man...an/2004/at.pdf

See page AT -224

AT-224DTC P1815 MANUAL MODE SWITCH

On Board Diagnosis LogicACS000DVThis is not an OBD-II self-diagnostic item. Diagnostic trouble code “MANU MODE SW/CIR” with CONSULT-II is detected when TCM monitors Man-ual mode, Non manual mode, Up or Down switch signal, and detects as irregular when impossible inputpattern occurs 1 second or more.Possible CauseACS000DWHarness or connectors(These switches circuit is open or shorted.)Mode select switch (Built into A/T control device)Position select switch (Built into A/T control device)

Thanks man looks like we need to take it in to get scanned with the consult-II to figure out the specific problem.
I was suggesting we change out the shifter assembly but not 100 percent sure that's the problem.
 
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