When it rains my 02 Nissan Maxima has crazy electrical problems HELP!!!!

Asked by Mar 27, 2013 at 08:19 AM about the 2002 Nissan Maxima GXE

Question type: Maintenance & Repair

Everytime it rains fairly hard my 2002
Nissan maxima acts crazy. First off
the speedometer jumps up to
between 20 and 30 mph while still in
park, the electronic driver seat stops
working and then everytime you hit
the brakes the abs engages. On top
of that the car takes off in 2nd gear.
It's an automatic. So far the
mechanic has no idea what is wrong.
He has replaced the drivers side rear
speed sensor because he said it was
giving off a code. But that had not
fixed the problem. We realize
something's getting wet but have no
clue on where to start. Any ideas
would be greatly appreciated.

2 Answers

96,205

Follow the wiring harness from the engine compartment. It gets larger and it passes through the fire wall. Check for any moisture at the connectors. Put some dielectric grease on the connectors to seal out water and prevent corrosion. --- The wire continues inside under the dash. Look for evidence of a cowl leak. Unplug the connectors and dielectric grease the contacts there too.

1 out of 1 people think this is helpful.
90,955

First check and clean all electrical grounds in the engine compartment including the battery. You are stating the speedo and tranny and seat are acting up, so I would start checking connections inside next. You may need to remove carpet, seats, other interior components. You really need to check all of the connectors to everything, make sure they are clean, no corrosion, seal good and dry. Take a good look at wiring harnesses, water can enter them and travel through them causing all kinds of trouble. Make sure that all of the body drains are functioning and not plugged. This is going to be a lot of work, so I recommend that you get yourself a good shop manual with a wiring schematic and component locator, it will really help.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 2002 Nissan Maxima GLE turns over but wont start 53 answers

    My 2002 Nissan Maxima GLE turns over but will not start. Every light in the car is on. I tried to crank it but it wont start. There is a noise coming from the hood. And its also a whirring noise I c...

    2002 Nissan Maxima GLE

    -

    Maintenance & Repair

  • maxima 6 answers

    i have a 1990 nissan maxima i started it a few days ago and let it idle to warm up. it idled fine and ran fine until i pulled out onto the road. when it changed into second gear it just died so i pu...

    1990 Nissan Maxima SE

    -

    Maintenance & Repair

  • How do i get rid of the single Speed Sensor code P0500 on my 1999 Nissan Maxima??? 1 answer

    I fixed many diff codes in recent months like EGR valve replacement, MAP Sensor, amd after a certified mechanic comfirmed tht my ECU was faulty and reason for throwing two other codes that he conf...

    1999 Nissan Maxima GXE

    -

    Maintenance & Repair

  • 1999 Nissan Maxima over-drive turn on/off while driving 5 answers

    1999 Nissan Maxima over-drive turn on/off while driving

    1999 Nissan Maxima

    -

    Maintenance & Repair

  • Nissan Maxima 2 answers

    I recently went to Auto Zone and had them check why my check engine light, they told me some censor codes PO 731,732,733, and 745 were showing. Does anyone know what these codes are or what is the dia...

    1995 Nissan Maxima SE

    -

    Maintenance & Repair

Search Nissan Maxima Questions

Nissan Maxima Experts

#1 rtriel
rtriel
Reputation 570
#2 Tom Demyan
Tom Demyan
Reputation 530
#3 Cocohuate
Cocohuate
Reputation 410
View All

Related Models For Sale

Used Nissan Altima
877 Great Deals out of 80,282 listings starting at $1,800
Used Honda Accord
790 Great Deals out of 88,192 listings starting at $1,150
Used Toyota Camry
850 Great Deals out of 90,973 listings starting at $249
Used Chevrolet Impala
542 Great Deals out of 29,827 listings starting at $799
Used Acura TL
235 Great Deals out of 6,941 listings starting at $1,200
Used Honda Civic
516 Great Deals out of 89,847 listings starting at $1,299
Used Chevrolet Camaro
150 Great Deals out of 32,742 listings starting at $1,729
Used Ford Mustang
397 Great Deals out of 47,365 listings starting at $1,999
Used BMW 3 Series
969 Great Deals out of 33,695 listings starting at $1,000
Used Chevrolet Malibu
872 Great Deals out of 81,397 listings starting at $995
Used Nissan Murano
347 Great Deals out of 26,334 listings starting at $1,699
Used Kia Optima
393 Great Deals out of 31,033 listings starting at $2,995

Used Cars For Sale

2017 Nissan Maxima For Sale
29 Great Deals out of 15,262 listings starting at $18,300
2016 Nissan Maxima For Sale
46 Great Deals out of 2,288 listings starting at $16,900
2014 Nissan Maxima For Sale
85 Great Deals out of 2,609 listings starting at $10,980
2013 Nissan Maxima For Sale
39 Great Deals out of 1,246 listings starting at $9,495
2012 Nissan Maxima For Sale
14 Great Deals out of 813 listings starting at $8,333