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

Asked by Crose420 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.

1 Answer
176,035

tenspeed answered 11 years ago

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.

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