Heads up speedometer display not working

CHIPPEE

MEMBER
1992 NISSAN 240SX
4 CYL
2WD
AUTOMATIC
80,000 MILES

My car which has a digital heads up speedometer display stops working occasionally and the transmission then will not shift out of second gear.
I have had the speedometer sensor replaced from the transmission and it worked for a short period but has reverted to the same situation as before.
Is there another sensor or fuse etc, that could be causing this?

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Hello,

It sounds like you have an instrument cluster that is going out which will affect the transmission shifting as well. But to be sure lets run some checks.

Here is a guide and some instrument cluster wiring diagrams (below) so we can get the car fixed:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

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

Please let us know what happens.

Cheers, Ken

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