01-7700

So I've been having some intermittent airbag warning light issues and have been watching it for clues. Meanwhile, upon starting all the gauges on the cluster will sometimes sweep min - max - min - but sometimes they don't! Does anyone know what would control this behavior? Like if everything was operating normally, do the gauges normally sweep everytime you start the truck? I can't remember how it worked before I started having problems.

10thGenScab

I don't know about the cluster sweep, but if you count the number of airbag light flashes, it indicates a coded error. Example: two flashes, a pause, seven flashes equals airbag code 27. There are several codes...


1997 F SERIES TRUCKS (OBD-2 Style Codes)

Scanner Flash

B1867 12/52 Loss Of Battery Feed Or Battery Supply Shorted To Ground or Earth
B1913 13/53 Airbag Module Circuit Short To Ground or Earth
B1914 14/54 Airbag Sensor Circuit Shorted To Ground or Earth
B1921 21 Diagnostic Module or Computer Ground or Earth Circuit Open Or Not Mounted Properly
B1922 22 Sating Sensor Output Circuit Shorted To Battery or Voltage (VSS) Voltage
B1923 23 Memory Clear Circuit Improperly Ground or Earthed
B1932 32 Driver's Airbag Detonator Unit Circuit High Resistance Or Open
B1933 33 Passenger's Airbag Detonator Unit Circuit High Resistance Or Open
B1934 34 Driver's Airbag Detonator Unit Circuit Low Resistance Or Shorted
B1935 35 Passenger's Airbag Detonator Unit Circuit Low Resistance Or Shorted
B1941 41 Right-hand Airbag Sensor Feed/Return Circuit Open
B1942 42 Left-hand Airbag Sensor Feed/Return Circuit Open
B1944 44 Right-hand Airbag Sensor Not Mounted Properly
B1945 45 Left-hand Airbag Sensor Not Mounted Properly

1998 F SERIES TRUCKS

Scanner Flash

B1342 24 System Disarm Failure Or Internal Diagnostic Module or Computer Fault
B1867 12/52 Lost Or Low Battery Voltage/Charging System Fault
B1869 No Airbag Indicator Or Inoperative Indicator Circuit
B1913 13/53 Driver/Passenger's Airbag Detonator Unit Circuit Shorted To Ground or Earth
B1914 14/54 Airbag Sensor Circuit Shorted To Ground or Earth
B1921 21 Diagnostic Module or Computer Ground or Earth Circuit Open Or Improperly Mounted
B1922 22 Sating Sensor Output Circuit Shorted To Battery or Voltage (VSS) Voltage
B1923 23 Memory Clear Circuit Improperly Ground or Earthed
B1924 System Disarm Failure Or Internal Diagnostic Module or Computer Fault
B1932 32 Driver's Airbag Detonator Unit Circuit High Resistance Or Open
B1933 33 Passenger's Airbag Detonator Unit Circuit High Resistance Or Open
B1934 34 Driver's Airbag Detonator Unit Circuit Low Resistance Or Shorted
B1935 35 Passenger's Airbag Detonator Unit Circuit Low Resistance Or Shorted
B1941 41 Right-hand Airbag Sensor Feed/Return Circuit Open
B1942 42 Left-hand Airbag Sensor Feed/Return Circuit Open
B1944 44 Right-hand Airbag Sensor Improperly Mounted Or Ground or Earth Circuit Open
B1945 45 Left-hand Airbag Sensor Improperly Mounted Or Ground or Earth Circuit Open

1999-2002 F SERIES TRUCKS

Scanner Flash

B1231 19 Restraints Control Module Crash Data Memory Full
B1342 24 Restraints Control Module Internal Fault
B1869 Airbag Indicator Inoperative
B1870 Airbag Indicator Shorted To Battery or Voltage (VSS)
B1871 25 Passenger's Airbag Detonator Unit Deactivation (PAD) Switch Fault
B1877 46 Driver's Seat Belt Pretensioner Circuit Resistance High
B1878 17 Driver's Seat Belt Pretensioner Circuit Shorted To Battery or Voltage (VSS) Or Ignition
B1879 17 Driver's Seat Belt Pretensioner Circuit Shorted To Ground or Earth
B1881 47 Passenger's Seat Belt Pretensioner Circuit Resistance High
B1882 18 Passenger's Seat Belt Pretensioner Circuit Shorted To Battery or Voltage (VSS) Or Ignition
B1883 18 Passenger's Seat Belt Pretensioner Circuit Shorted To Ground or Earth
B1884 27 Passenger's Airbag Detonator Unit Deactivation (PAD) Warning Lamp Inoperative
B1885 46 Driver's Seat Belt Pretensioner Circuit Resistance Low
B1886 47 Passenger's Seat Belt Pretensioner Circuit Resistance Low
B1887 15 Driver's Airbag Detonator Unit Circuit Shorted To Ground or Earth
B1888 16 Passenger's Airbag Detonator Unit Circuit Shorted To Ground or Earth
B1890 27 Passenger's Airbag Detonator Unit Deactivation (PAD) Warning Lamp Short To Battery
B1891 Airbag Tone Warning Indicator Shorted To Battery or Voltage (VSS) Or Ignition
B1892 Airbag Tone Warning Indicator Circuit Shorted To Ground or Earth Or Open
B1916 15 Driver's Airbag Detonator Unit Circuit Shorted To Battery or Voltage (VSS) Or ignition
B1921 21 Restraints Control Module Bracket Ground or Earth Resistance High
B1925 16 Passenger's Airbag Detonator Unit Circuit Shorted To Battery or Voltage (VSS) Or Ignition
B1932 32 Driver's Airbag Detonator Unit Circuit Resistance High
B1933 33 Passenger's Airbag Detonator Unit Circuit Resistance Low
B1934 34 Driver's Airbag Detonator Unit Circuit Resistance Low
B1935 35 Passenger's Airbag Detonator Unit Circuit Resistance Low
C1414 29 Incorrect Vehicle Information Code

01-7700

i get 21 and 25 codes and half the time no code - does your cluster sweep everytime?

white89gt

I know 97 is its own animal, but mine does not sweep. Neither does my 98 Expy. However, my 06 Escape does, and I've seen other Fords that do sweep as well. Not sure when it all started though.

mapleleaf1773

My 2001 does not sweep

but, if you unplug the cluster at any point (to change bulbs or do other work on the cluster) and plug it back in it sweeps the first time. After that no guage sweep. I dont know if that's relevant or not, information non the less.

maybe there's a potential short in the wire harness. Just thinking out loud here.

airbag I know nothing about

tcp2

I think the gauge sweep had to do with battery voltage at some point. If you're battery wasn't holding charge as well as a new one, you'd get the sweep. I remember my 09 started doing it and sure enough the battery needed replacing shortly after.
found this:

09 and newer trucks do this everytime at startup while 08 and older (not sure of how old but wanting to say 97) do this on two conditions. 1. Bad battery or alternator. 2. You've entered the dealer ic test mode (some call it engineering test mode). It's purpose is for the gauges to find their min and max points of their ranges. They twitch around at 0 briefly to find their min. Or to rezero themself and move all the way to their max point. They do this to be able to accurately display what they represent. Ie. 60mph is 60moh not 75mph. If they never did this you could theoretically move the needles past max and back around to 0. Instead of 90mph. It's used in a math formula for converting voltage to physical movement. 09+ trucks do this eveytime they start to ensure they stay calibrated. 08 and older do this when they have lost their memory of the last calibration.(ur battery or alternator is crap and not letting you keep your memories for anything including fuel trims and soft dtcs.) That's why if you replace the battery ir alternatpr it stops because its not losing power to its memory. If you disconnect the battery for long enough it will do this everytime. And the test mode is to test the gauge functions. Just search for ic test on this site and you should find what I'm talking about.

fordguy2100

FWIW my 03 doesn't sweep

01-7700

Thanks for all the great info - i'd thank you formally but i'm getting this error at the moment

Forbidden

You don't have permission to access /post_thanks.php on this server.

white89gt

Well, all of this info makes me wonder if you've got the classic cracked solder joint(s) on the back of the cluster. If it loses contact, then reconnects, maybe that's why you are sweeping sometimes.

ANT99F150

Not 100% sure on this but the gauges should do a sweep on startup when ever the battery is disconnected and reconnected or if it dies and it's jump started. My 99 does this and my mom's 02 excursion with the v10 does this. The cause of this is likely the battery's on its way out. If it's starting to get cold out where you are then it would make sense that it's starting to occur now. I'd get the battery and alternator checked.