ECU pinout? I'm seeking pinout info on an ECU I've pulled from my recently dysfunctional 93' 1.3L Swift (auto trans unfortunately). The ECU is a Denso unit, L4, 1.3-AT-CAM, 33920-63E4 O, 112000-2170. My crappy service manual schematic connector pin numbering does not seem to match what I can read on the ECU PCB. Problem was / is ign abrupt failure. Traced & cleared all except primary coil drain switch at / in ECU but cannot trace actual wire through the firewall.....help?

Its possible that your ECU electronic control unit is failing to send info from the trans to your dashboard or perhaps wiring is faulty (common at trans plug). Use a code reader to scan for any problems with ECU - It could also be a fuse...

[PDF]WIRING DIAGRAM BY MODEL - Apexi

www.apexi-usa.com/manuals/electronics/neo_diagram.pdf

TOYOTA. Table of Applicable Models. ..... The orientation of the ECU depends on the vehicle with ECU pins. Install the ECU fully checking the .... 2MZ?FE. '97.5?'02.1. VEROSSA. JZX110. 1JZ?GTE. '01.8?'04.4. L. T10?b. HW?23.

1997 Camry V6 ECU Pinout - Toyota Nation Forum : Toyota Car and ...

www.toyotanation.com/.../97568-1997-camry-v6-ecu-pinout.html

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Have you recently had the brakes worked on .it could be the emergency brake hanging up .

Are you doing all this work without a shop manual? It should have the info you seek.

the tranny is dying i think. you might've lost all your gears but 1st and 2nd thats why it's not shifting. if you have a semi-manual mode try all the gears and if they dont change then it definitely is the tranny

3s, humm...... what is that, google shows ZERO for that.
can i know what object shows that? dash, ECU, trans shift.? what?
where are your eyes looking,?
is this the ECU flash code>? LED? at ECU?

"1985-91 Prelude models, there is only one LED display."
ECU code 3 is bad MAP (or bad vacuum to it)

Carb engine or EFI engine./ and which engine?> "options"

here is the FSM , look it up , gen 2 to 5
http://hondatech.info/downloads/Auto/Manuals/Prelude/

which computer. what year.
in the old swift the ECU/PCM is reset 3 ways.
1: pulling the ECU memory fuse.
2: pulling battery neg lug for 5min or step on brakes and put back lug.
3: scan tool , reset, You wont have this,its old 0bd1 tool.

come cars have a A/T computer, called a TCM.

p5m? (what is that.)
no matter,
all the schematics are at alldata.com , pay the 15 clams and look.

Just shift it manually!

If the ecu has trouble codes for itself, it may be an internal problem, and the "idiot codes" would be a symptom of erratic ecu operation.
I would recommend that you take it to the dealer and pay the diagnostic fees to have it properly assessed. Then you will know for sure what the problem is with your jeep, and can go from there. If a new ecu is needed, check for a remanufactured unit or shop around at local salvage yards, if you don't want to pay the cost of a brand new unit.