Where is the JZX90 ABS/TRC ECU Located?

[hamgatan]

As per the title. I pulled apart the glovebox, its not in there. I couldn't find it in the boot walls, and It wasn't in under where the stereo goes... soo... WHERE IS IT?

[big_zop]

Part of the main ecu maybe?

[hamgatan]

nope definitely not. its a standalone ECU. seen them on yahoo auctions..

[Kedderz]

i would assume behind the glovebox insert where the ecu is. Soarer ones are all located there i assume jzx90s would be the same ;-)

[hamgatan]

definitely not behind the glovebox.

ok i finally found the ABS Diagnostic jumpers (hidden away under the drivers kick panel) and bridged TC and E1 and now have a Code 43. Anyone know what that might indicate? (I'm assuming its a code 43 coz the TRC light flashed 4 times, pause then 3)

EDIT - BINGO! Got It! Thank you PlanetSoarer

TRC - 43 - Malfunction in the ABS or TRAC (Brake) Control System
Footnote - If a malfunction is detected, the TRAC OFF Light will stay on

Exactly my problem. OK If i only knew where the damn ECU is I'd check it now!

[CrUZida]

I would have thought the ABS light would have flashed if there was an ABS problem ?

[hamgatan]

the TRC and ABS systems are aligned as they share the same ECU. If theres a problem in the ABS system external from the ECU then the ABS light will flash, but if its a ECU problem or TRC problem then the TRC light will flash.

this is the ABS/TRC ECU

[CrUZida]

Question.
What size front and rear tyres do you have?

[hamgatan]

same as stock. 225/55/R16. see where you're going with that though.. fair call

[The Last Streetfighter]

That looks like the ecu that is a bit further under the driver's feet than the diags connector that you just found (well, on an x100 anyway...) You'd need a torch to read it, tho.

[mark_vdh]

in the MX83 the ABS computer is between the back seat and the back of the boot
might be the same as JZX90

[hamgatan]

That looks like the ecu that is a bit further under the driver's feet than the diags connector that you just found (well, on an x100 anyway...) You'd need a torch to read it, tho.

i think you're spot on. i'll pull it apart and have a look tomorrow. got a new ECU today...