On Wed, 17 Oct 2007 14:07:23 -0000, tao <taohe000@[EMAIL PROTECTED]
> wrote:
>I have a 2002 Maxima, Auto trans.. Even with the brake depressed I
>cannot ****ft out of Park without depressing the manual ****ft lock
>release switch at the base of the ****fter. I broght it to a Nissan
>dealer and they siad the shfit has a internal failure and need to
>replace a whole ****fte ( part cost is about $300). They replaced with
>a whole new ****ft assembly, but the problem is not fixed ( the same
>exact problem as before). They claimed that the new part is a bad one
>and ordered another new part. However, the problem still wasn't fixed.
>I don't think they even know the root cause . My car is still at the
>dealer. Any recommendations or sugguestions are appreciated.
As I read the workshop manual, it says two conditions must be met
before you can move the ****fter:
1) The ignition key must be inserted and turned to "ON"
AND
2) The brake pedal must be depressed (stop light switch activated)
According to your re****t when you do both 1) and 2) you cannot move
the ****fter.
Easiest thing to check is 2). When you depress the brake pedal it
closes a circuit in the "stop lamp switch" which sends a signal to
allow the ****fter to move (as well as turn stop lights on). Remove
both connectors from the stop lamp switch and attach a multimeter set
to measure resistance. When you depress the brake pedal it should read
0 ohms (short circuit), when you take your foot off the pedal it
should be infinite ohms (open circuit)
If the stop lamp switch is OK, then other possibilities are:
1) Ignition switch is faulty (doesn't send the correct signal to key
lock solenoid).
2) Key lock solenoid is faulty. This device should also prevent you
from removing the key from the ignition unless ****fter is in park.
3) A device labelled A/T Device. This device houses:
a) "detent key switch" (manual ****fter release)
b) ****ft lock solenoid (operates the ****ft lock
c) Illumination lamp
4) ****ft lock control unit, which you say the dealer has replaced
The workshop manual has a fairly simple fault tracing routine which
dealer should be able execute, hopefully.
Al Moodie.
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