my O/D off light starts blinking at me after driving about 10 or 15 mils. i tried looking in my owners manual and in the repair manual but cant find any thing no codes come up when its doing it or when it stops and i tried the search on here but nothing on there ether. so any one know what that is for? its kinda annoying at night

 

so im guessing no one knows what this is???

 

transmission threw a code, get it scanned.

 

WIthout a code i can only give a possible, per the factory DVD for a 2003 f150, i do not know your year, one possible is the switch is shorting out. Remove the end cap piece and remove the switch,
PINPOINT TEST C: THE TRANSMISSION CONTROL SWITCH/INDICATOR LAMP IS NOT OPERATING CORRECTLY

Test Step Result / Action to Take C1 CHECK FUSE F2.29 (5A)

• Key in OFF position.
• Check fuse: Central Junction Box Fuse F2.29 (5A).
• Is the resistance less than 5 ohms?

Yes
REINSTALL the fuse. GO to C3 .

No
INSTALL a new fuse. TEST the system for normal operation. If the fuse fails again, GO to C2 . C2 CHECK CIRCUIT 224 (TN/WH) FOR SHORT TO GROUND

• Disconnect: Powertrain Control Module (PCM) C175.
• Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Repair as necessary.
• Connect the 104-Pin Breakout Box. Leave PCM disconnected.
• Measure the resistance between test pin 29 and test pins 24 and 77 at the 104-Pin Breakout Box.
  [IMG]file:///C:/TSO/tsocache/SAC281_6176/S31~us~en~file=GD2186A.gif~gen~ref.gif[/IMG]
• Is the resistance greater than 10,000 ohms?

Yes
CHECK circuit 640 (RD/YE) and related components for short to ground. TEST the system for normal operation.

No
REPAIR circuit 224 (TN/WH). TEST the system for normal operation. C3 CHECK TRANSMISSION CONTROL SWITCH (TCS) CIRCUIT FOR VOLTAGE

• Disconnect: Powertrain Control Module (PCM) C175.
• Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Repair as necessary.
• Connect the 104-Pin Breakout Box. Leave PCM disconnected.
• Key in ON position.
• Measure the voltage between test pin 29 and test pins 24 and 77 at the 104-Pin Breakout Box while cycling the TCS several times.
  [IMG]file:///C:/TSO/tsocache/SAC281_6176/S31~us~en~file=GD2185A.gif~gen~ref.gif[/IMG]
• Does the voltage cycle?

Yes
INSTALL a new PCM. REMOVE the 104-Pin Breakout Box. TEST the system for normal operation.

No
GO to C4 . C4 CHECK CIRCUIT 640 (RD/YE) AND CIRCUIT 224 (TN/WH) FOR OPEN

• Key in OFF position.
• Disconnect: Central Junction Box Fuse F2.29 (5A).
• Disconnect: Transmission Control Switch (TCS) C279.
• Inspect both ends for damaged or pushed out pins, moisture, corrosion, loose wires, etc. Repair as necessary.
• Measure the resistance between the central junction box fuse F2.29 (5A), and the power side of the TCS vehicle harness C279-2, circuit 640 (RD/YE).
  [IMG]file:///C:/TSO/tsocache/SAC281_6176/S31~us~en~file=A0044030.gif~gen~ref.gif[/IMG]
• Measure the resistance between test pin 29 at the 104-Pin Breakout Box and signal side of the transmission control switch vehicle harness C279-1, circuit 224 (TN/WH).
  [IMG]file:///C:/TSO/tsocache/SAC281_6176/S31~us~en~file=A0043582.gif~gen~ref.gif[/IMG]
• Is the resistance less than 5 ohms for both circuits?

Yes
GO to C5 .

No
REPAIR open circuit. REMOVE 104-Pin Breakout Box. RECONNECT all components. TEST the system for normal operation. C5 CHECK CIRCUIT 224 (TN/WH) FOR SHORT TO POWER

• Measure the resistance between test pin 29 and test pins 71 and 97 at the 104-Pin Breakout Box.
  [IMG]file:///C:/TSO/tsocache/SAC281_6176/S31~us~en~file=GD2187A.gif~gen~ref.gif[/IMG]
• Is the resistance greater than 10,000 ohms?

Yes
INSTALL a new transmission control switch. REMOVE the 104-Pin Breakout Box. RECONNECT all components. TEST the system for normal operation.

No
REPAIR circuit 224 (TN/WH). REMOVE the 104-Pin Breakout Box. RECONNECT all components. TEST the system for normal operation.

See if this helps.

 

what kind of code reader do i need for it nothing comes up on the obdII other then i need a new o2 in port one side one. o and its a 97 4.6l 4x4

 

an ohm meter will conduct the tesys that are laid out in the portion of the manual i attached.

 

Does it flash a code like airbag lights? Like, say, 2 flashes-pause-3 flashes-long pause and then repeat (code 23)? My airbag light has been flashing a code so long I covered it up with electrical tape because I can't afford to fix it.

 

i took out my airbag sensor bulb lol

 

I would highly advise fixing the airbag issue. Bouncing your head off the steering wheel is a good way to have six figure medical bills until your death....and being dumber than a box of rocks because your brain bounced off your skull like a raquetball off concrete is not a fun way to go out.

 

i took my stock airbag steering wheel off and put a racing steering wheel in