Hi - I'm new to the Forum so thank you for letting me join!
I just bought a 2007 R51 2.5 DCi and I experiencing the issue of serious battery drain.
I can see from many posts on this forum and on the internet...that the most likely culprit is the mini relay which controls the ECM. If these are going faulty, they can produce several symptoms, including stalling, poor or no starting, and battery drain. My Nissan has had all these symptoms. They fail internally and allow that computer to stay active even when the car is switched off and left standing...hence the chronic battery discharge.
Before anyone suggests...I already did the multimeter test on the amps being used (which was high but I can't remember the figure) and also tried the remove fuses thing...but nothing seemed to change it.
I therefore tried to get a new replacement relay from my local Nissan Dealer in Inverness, Scotland...but they were stumped! They could not find the part from its numbers. Perhaps in the UK they were discontinued and no longer available? But I did see that there was a Nissan Recall for pre 2006 Pathfinders for the very same issue!
I have seen them on Ebay..but only used ones...and also sellers in the US are listing them as the "recall" relay but the part number they show is somewhat different..so I don't know for sure if they are the same?
I wonder if anyone can advise us here about this relay issue? The one I took out of mine has the following details -
Mini Nais Relay - 4 prong
Type X (has an X stamped on it)
ACM 33211
M13
61025 - 2602
The ones available from the US have only this part number -
284B7-CW29E
I would really rather not but another used one which would risk the same fail occurring.
As regards stalling...I also replaced the Crank Sensor which has helped with that problem.
If anyone is wondering where these relays and a host of 'hidden' fuses are on their Nissan...look for the large square block in the engine compartment and unclip the lid (mine was tough to remove so I had to prise it up with a screwdriver). On mine it is on the right hand side of the engine (looking from the front) and close to the bulkhead. When you pull up the lid, you can lift up the IPDM unit holding the relays and fuses. Check online for the position of the ECM Relay on your vehicle.
They should be taken out using a special tool...but can be removed with pliers if you are very careful...if you squeeze a bit too hard then the relay begins to crack!
Any help would be gratefully received...as I also hope it will assist many other Pathy/Navara owners with similar issues.
Here is the original Nissan Recall PDF with photos -
https://static.nhtsa.gov/odi/rcl/2010/R ... 7-9900.pdf
Many thanks in advance