Thoha Hassan

The ABS and Brake lights lite up ( SLIP also ) . The A/C also stopped working. I brought it to my local mechcanic and he thought it was blew a fuse and it was not. Now, the Speedometer also stopped working. Any idea whats wrong?

oldschool350z

iTrader: (1)

Was th battery unhooked for winter storage? I had this happen and a code came up, I cleared it with my scanner and it was fixed.

Spike100

What you describe is a catastrophic ECU failure.

Are you able to capture any codes?

terrasmak

iTrader: (8)

ECU failure would kill the motor, BCM and I believe another computer may do this

Thoha Hassan

it does not display any trouble codes either

Spike100

It's very odd that you are not getting any codes. I would probably try a different repair shop.

i8acobra

iTrader: (6)

It's the Unified A/C & Meter Amp. Should be a white box located under the stereo with a ribbon cable going to it.

Thoha Hassan

i get the error code u1001 only. a

Spike100

As I stated earlier, it’s likely a problem with your ECU.

Nissan has a service bulletin describing this issue (code U1001). Its cause could be a poor ground connection in the harness (at the engine and/or the dash). Nissan recommends unplugging the harness, cleaning the connection, and reconnecting the harness.

I think you need to reset the engine light after doing this.
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EDIT: I should have stated that ECU is a generic term that includes multiple electronic control devices (up to 80 now in modern cars).

Thoha Hassan’s problem (code U1001) is a ECU failure specific to the ECM, which is an individual Nissan ECU component.

i8acobra

iTrader: (6)

I'm a Nissan Dealer Tech. Read my response above.