SPONSORED LINKS

Transmission replaced three times, but vehicle drives slowly on forward and reverse?

Tiny
MALLYBOY
  • MEMBER
  • 2014 NISSAN SENTRA
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 45,678 MILES
Fault codes:

P0890-TCM POWER RELAY SENSE CIRCUIT LOW,
P0744-TORQUE CONVERTER CLUTCH INTERMITTENT,
P0603:ECM KEEP ALIVE MEMORY(BACK UP CIRCUIT),
U0100:LOST COMMUNICATION WITH ECM/PCM A,
P0868:FLUID PRESSURE LOW

How do I troubleshoot these and where's TCM relay located?
SPONSORED LINKS
Monday, July 31st, 2023 AT 12:42 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Here is the transmission wiring diagrams and there is no TCM control relay. I would think the problem is with the TCM itself, did you check the power ground and fuses?

This guide can help:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Please let us know what happens.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Tuesday, August 1st, 2023 AT 10:50 AM
Tiny
MALLYBOY
  • MEMBER
  • 309 POSTS
Please send me fuse box diagram complete, so that I can locate the TCM power relay sense circuit.
Was this
answer
helpful?
Yes
No
Wednesday, August 2nd, 2023 AT 2:48 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I don't see a TCM power relay? Here are the fuse panels. Check out the images (below). Please let us know how it goes.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Thursday, August 3rd, 2023 AT 10:13 AM

Please login or register to post a reply.

Related Transmission Forward Content

VIEW MORE

Sponsored links