Need Wiring Diagram for 96 Eddie Bauer Code Reader

[96FORDBRONCOEB]

Does anyone have a diagram of the code reader from under the dash to where it is connected once it leaves the code reader plug.  I am having problems getting any codes and believe I might have a short or some corrosion.

Thanks

 

[miesk5]

Yo,

found that my cig lighter's 12v vehicle power (VPWR) Lt Blue/White wire chaffed & shorted on ashtray frame. It caused Fuse 16 to blow itself...out & this also caused the OBD II Diagnostic Link Connector (DLC) not to "power up" @ pin 16

So get in there & ck that fuse; if blown, pull ashtray or just trace Lt Blue/White wire back and see if it is shorting out on the frame.

if so, tape it

If Fuse is ok,

pull out a multi meter or get a cheap one or 12 v test lamp and ck for 12v at the DLC connector pin 16

Diagnostic Link Connector (DLC) Pin-Out Diagram in a 96

http://www.supermotors.net/getfile/174488/fullsize/dlc96broncoc201.jpg

If no 12v, trace same wire from DLC connector pin 16 back and see if it is shorted on frame.

to power the DLC con up, run a jumper from 12v always on Source (fuse box, etc.) and tap into that pin 16 wire

If power is @ 16; then for a good ground (chassis) @ pin 4

 

[miesk5]

Yo,

96 Cab fuse box

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=53201

Fuse 16 is marked for cigar lighter @ 15 amps

If you see no battery voltage on either side of fuse, check:

POWER DISTRIBUTION BOX, UNDER HOOD, NEXT TO AIR FILTER BOX...

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=53203

**** fuse 20 is 50 amps & Feeds Cab Fuses 16, 4, 8 and Circuit breaker 20.

 

[96FORDBRONCOEB]

So far so good. You were correct on the bare wires. I will find out Monday what the codes are. Will not move hardly in drive but when you downshift and go it does just fine.

 

[miesk5]

Yo,

Ok!

Will look for the codes.

 

[96FORDBRONCOEB]

I was able to use the code reader and it spit out the following codes:

PO743

PO750

PO755

PO401

PO443

Is there a place for me to find out what the codes decipher to?

Thanks for all your help!

 

[miesk5]

yo,

P0141 HO2S HEATER SIGNAL CIRCUIT IS OPEN, SHORTED TO GROUND, SHORTED TO B+ OR EXCESSIVE CURRENT DRAW; Possible Causes & Troubleshooting; possible causes: Shorts to B+ in harness or HO2S. Water in connectors. Cut or pulled wires. Disconnected wiring. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals. Damaged PCM. Visually inspect the HO2S circuit for exposed wiring, contamination, corrosion and proper assembly.

See my post #5 at http://broncozone.com/topic/23582-check-engine-light-codes/

....

PO743 see my post #3 @ http://broncozone.com/topic/22935-92-bronco-randomly-stalls-when-brake-is-tapped/

....

PO750 & PO755

NOTE: This pinpoint test is designed to diagnose the shift solenoid electrical system only. To prevent replacement of good components, note that the following areas may be at fault:

Electrical — Battery, input sensors, wiring harnesses

Transmission — Internal transmission components, linkage

A1 E4OD ELECTRONIC DIAGNOSTICS

Check to make sure the transmission harness connector is fully seated, terminals are fully engaged in connector and in good condition before proceeding.

A2 CHECK ELECTRICAL SIGNAL OPERATION

CAUTION: Remove heat shield from transmission before removing connector. Remove solenoid body connector by pushing on center tab and pulling on wiring harness. Do not attempt to pry tab with a screwdriver. Reinstall heat shield after service.

NOTE: Refer to the schematic and charts preceding this pinpoint test.

Disconnect transmission connector.

Using a mirror, inspect both ends of connector for damaged or pushed out pins, corrosion, loose wires, and missing or damaged seals.

This pinpoint test is designed to diagnose the following components:

Read more testing @ http://www.thedieselstop.com/faq/9497faq/maint/stj/stj71a20.htm#d

....

PO443

Vapor Management Valve; miesk5 note; for 1996 Broncos with OBD II, The vapor management valve (VMV) replaces the canister purge valve used in EEC IV; miesk5 note the Vapor Management Valve (EVAP SYS) is located on passenger side firewall, high in our 96 5.0L

http://i647.photobucket.com/albums/uu198/edaminski/96%20bronco/P9050934.jpg pic by Ed.

Read more in my post #2 @ http://broncozone.com/topic/14649-canister-purge-valve/

 

[96FORDBRONCOEB]

Thank you!