brake light blinking

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  #1  
Old 07-04-02, 10:22 AM
dagovna
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Unhappy brake light blinking

hi all,
I have a 1990 gmc 2500 vandura (conversion van) 5.7 litre auto
trans 240000 mi. i have serviced my vehicle since i bought it new, but i'm finally stumped. the (red) brake light (1,2) keeps blinking. all brake shoes and disks were replaced as well as the rotors and drums, oh yes even the master cylinder. the light blinks 3 times then pause and blinks 1 time(31). if anyone can help me thanks in advance.
dagovna
 
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  #2  
Old 07-04-02, 02:14 PM
tstokka
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Code 31 - RR speed sensor or circuit open
 
  #3  
Old 07-05-02, 05:51 AM
Joe_F
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In other words, there is a fault code in the ABS system as he pointed out.

Check the sensors as he described.
 
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