TCU Type problems, already replaced TCU still wont work!!!!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

JohnnyDrfiter22 · 09-17-2010, 03:24 PM

Iv done a lot of reading and researching on my problems and found a lot of people find the TCU is the culprit. I went to the junkyard got one and still nothing is working....

The list of problems:
!. Dash board lights
2. HVAC lights
3. Parking/Tail lights
4. Mirror control
5. Cd player
6. Cig lighter

Maybe this will help but when I installed a cigarette lighter it worked for a few days and than all of a sudden stopped. That's when I noticed all my symptoms and problems.

Things iv done:
Relaced TCU
Replaced various relays
Checked all Fuses

If anyone has any other input, I heard maybe the steering stalk. You guys would know exactly what relay those things run off of or maybe wires under dash or rear section I should look for. Thanks!!

JohnnyDrfiter22 · 09-18-2010, 06:32 AM

Please bump it up and help, thanks!

Siberian Husky · 09-19-2010, 01:49 AM

i thought the mini ecu box that resides under the center console controlled many things on your list of problems.

Okinawandrifter87 · 09-19-2010, 07:06 AM

Do you even know if the one you pulled from the junkyard worked? I had a similar problem once and grabbed a couple first 2 didnt work but the last one did. They are 20 year old cars so you shouldn't always expect something electrical to work every single time from the junkyard. Just sayin. Might be it if you've checked all fuses or relays off the top of my head.

JohnnyDrfiter22 · 09-19-2010, 08:24 AM

Idk what I did exactly to fix the problems.
I messed with everything yesterday again and my stuff works now!! Woot woot

Except Cd player grrrrr

The mini Ecu under console says something on it about seat belts.....

09-17-2010, 03:24 PM	#1
JohnnyDrfiter22 Zilvia Addict Join Date: Apr 2008 Location: New Jersey Age: 42 Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	TCU Type problems, already replaced TCU still wont work!!!!! Iv done a lot of reading and researching on my problems and found a lot of people find the TCU is the culprit. I went to the junkyard got one and still nothing is working.... The list of problems: !. Dash board lights 2. HVAC lights 3. Parking/Tail lights 4. Mirror control 5. Cd player 6. Cig lighter Maybe this will help but when I installed a cigarette lighter it worked for a few days and than all of a sudden stopped. That's when I noticed all my symptoms and problems. Things iv done: Relaced TCU Replaced various relays Checked all Fuses If anyone has any other input, I heard maybe the steering stalk. You guys would know exactly what relay those things run off of or maybe wires under dash or rear section I should look for. Thanks!!

09-19-2010, 07:06 AM	#4
Okinawandrifter87 Post Whore! Join Date: Jun 2006 Location: Sacramento, CA Posts: 3,959 Trader Rating: (22) Feedback Score: 22 reviews	Do you even know if the one you pulled from the junkyard worked? I had a similar problem once and grabbed a couple first 2 didnt work but the last one did. They are 20 year old cars so you shouldn't always expect something electrical to work every single time from the junkyard. Just sayin. Might be it if you've checked all fuses or relays off the top of my head. __________________ Driftphreak87

09-18-2010, 06:32 AM	#2
JohnnyDrfiter22 Zilvia Addict Join Date: Apr 2008 Location: New Jersey Age: 42 Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	Please bump it up and help, thanks!

09-19-2010, 01:49 AM	#3
Siberian Husky Zilvia Junkie Join Date: Dec 2005 Location: CA Posts: 411 Trader Rating: (4) Feedback Score: 4 reviews	i thought the mini ecu box that resides under the center console controlled many things on your list of problems.

09-19-2010, 08:24 AM	#5
JohnnyDrfiter22 Zilvia Addict Join Date: Apr 2008 Location: New Jersey Age: 42 Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	Idk what I did exactly to fix the problems. I messed with everything yesterday again and my stuff works now!! Woot woot Except Cd player grrrrr The mini Ecu under console says something on it about seat belts.....