1996 bronco need help
- Thread starter boneyard
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
BroncoJoe19
Active member
You don't need to write in short hand, we have plenty of room on this server for full complete sentences.
Did you check your fuses?
You might try disconnecting and reconnecting some connectors, sometimes just doing that will be enough to clean otherwise crappy connections.
See if this wiring diagram helps at all.
Did you check your fuses?
You might try disconnecting and reconnecting some connectors, sometimes just doing that will be enough to clean otherwise crappy connections.
See if this wiring diagram helps at all.
yo Bone,
My pal Joe has the right ckt that you'll need to go thru
This problem could be caused by a # of thangs;
bad VSS Connector/corroded wires inside connector;
cruddy/damaged tone ring,
bad connectors at firewall, 4WABS Module and /or at PSOM (Speedo);
4WABS Module (also called da abs computer; I had one go bad and 2 yard Modules were also bad; so I jumpered the Module out as Steve describes below.
To bypass the 4WABS module & feed the ABS signal directly to the PSOM,
Disconnect module (under coolant recovery /ws washer tank) & in connector, jumper LG/Bk to LG/Y, and R/Pk to O/LB..."
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net http://www.supermotors.net/registry/media/170517_1
Pin numbers are shown in the wiring diagram
Speed Input Signal Test in 93-96 Bronco; "...NOTE: Only wiring harness end of connector is to be probed. * Connect Rotunda Digital Volt-Ohmmeter 014-00407 or equivalent to Pin 4 (speed in ) and Pin 5 (speed in -). * Does the voltage increase smoothly and continuously from 0 to approximately 3.5 volts as vehicle speed increases from 0 to 48 km/h (0 to 30 mph)? OR: If available, a frequency counter may be connected to Pin 4 (Speed in ) and Pin 5 (Speed in -). Does the displayed frequency of the signal increase smoothly and continuously from 0 to approximately 667 Hz at approximately 48 km/h (30 mph)? OR: * If neither a voltmeter nor frequency counter is available, vehicle speed control may be used as a good indicator. If it works normally, then the speedometer module is at least receiving a speed input signal and the wiring and sensor can be assumed to be good.
PSOM Pointer PSOM Pointer Waiver TSB 96-21-11 for 92-96; "..The speedometer needle may waver and or a light surge may occur on some vehicles..." read more
Source: by Ford via miesk5 @ http://home.comcast.net/~miesk5/technical_service_bulletins.htm#technical_service_bulletins.htm
Tone Ring Inspection; "Take off the rear diff cover. Check the Ring Tone gear. It is located on the left hand side of the ring gear. Look to see if any of the teeth have been notched (from debris floating around in the diff.) Usually a spider gear. If the ring tone gear has been notched, it will need to be replaced to fix your speedo reading. Jack it up and rotate the tires to look for the teeth to be notched/broken/bent..."
Source: by Bighibbi at FSB
more VSS info in my site @ http://www.broncolinks.com/index.php?index=139
-
More 4WABS Info, Connector Location and pin out diagrams etc in my site @ http://www.broncolinks.com/index.php?index=240
My pal Joe has the right ckt that you'll need to go thru
This problem could be caused by a # of thangs;
bad VSS Connector/corroded wires inside connector;
cruddy/damaged tone ring,
bad connectors at firewall, 4WABS Module and /or at PSOM (Speedo);
4WABS Module (also called da abs computer; I had one go bad and 2 yard Modules were also bad; so I jumpered the Module out as Steve describes below.
To bypass the 4WABS module & feed the ABS signal directly to the PSOM,
Disconnect module (under coolant recovery /ws washer tank) & in connector, jumper LG/Bk to LG/Y, and R/Pk to O/LB..."
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net http://www.supermotors.net/registry/media/170517_1
Pin numbers are shown in the wiring diagram
Speed Input Signal Test in 93-96 Bronco; "...NOTE: Only wiring harness end of connector is to be probed. * Connect Rotunda Digital Volt-Ohmmeter 014-00407 or equivalent to Pin 4 (speed in ) and Pin 5 (speed in -). * Does the voltage increase smoothly and continuously from 0 to approximately 3.5 volts as vehicle speed increases from 0 to 48 km/h (0 to 30 mph)? OR: If available, a frequency counter may be connected to Pin 4 (Speed in ) and Pin 5 (Speed in -). Does the displayed frequency of the signal increase smoothly and continuously from 0 to approximately 667 Hz at approximately 48 km/h (30 mph)? OR: * If neither a voltmeter nor frequency counter is available, vehicle speed control may be used as a good indicator. If it works normally, then the speedometer module is at least receiving a speed input signal and the wiring and sensor can be assumed to be good.
PSOM Pointer PSOM Pointer Waiver TSB 96-21-11 for 92-96; "..The speedometer needle may waver and or a light surge may occur on some vehicles..." read more
Source: by Ford via miesk5 @ http://home.comcast.net/~miesk5/technical_service_bulletins.htm#technical_service_bulletins.htm
Tone Ring Inspection; "Take off the rear diff cover. Check the Ring Tone gear. It is located on the left hand side of the ring gear. Look to see if any of the teeth have been notched (from debris floating around in the diff.) Usually a spider gear. If the ring tone gear has been notched, it will need to be replaced to fix your speedo reading. Jack it up and rotate the tires to look for the teeth to be notched/broken/bent..."
Source: by Bighibbi at FSB
more VSS info in my site @ http://www.broncolinks.com/index.php?index=139
-
More 4WABS Info, Connector Location and pin out diagrams etc in my site @ http://www.broncolinks.com/index.php?index=240
Similar threads
