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Topic: air pressure module (Read 389 times) previous topic - next topic

air pressure module

Good day to everyone.Behind the dash on the GV320 is a blue module , with a molex connector and two air lines.We have determined that it is not working properly.Does anyone know if they still make them or is there an updated version of it.We were thinking of going with manual gauges. Front and rear would have there own separate line and then rewire so that there would be a lite for each guage.Any thoughts.Thanks Bob
Bob/Brenda
2003 GV320 40'
Former 2000 U320 40'
Former 1993 U300SE
2007 GMC Envoy Denali
FMCA #2063 S1

Re: air pressure module

Reply #1 –
air gauge on 2003 U320
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: air pressure module

Reply #2 –
So I can understand this..... FT runs 2 air lines from the tanks to a transducer under the dash so they could use electric gauges?
Dave W. (AKA Toyman )
'03, 270, 36', Build 6095, Pulling whatever I hook it to.

"Don't cry because it's over. Smile because it happened."
Dr Seuss

Re: air pressure module

Reply #3 –
On my 2001 the transducer was at the tank and wires to the gray box. Both failed at the same time, some mystery thingin the gray box.  Actual air line were run up inot the dash and VDO mechanical gauges were installed. I think the actually ran air lines into the dash for the front and rear tanks and into ports on the blue box.  The blue box drives the electronic gauge as well as watches for low pressure for the alarm.  If you remove the air lines from the blue box you might get a continuous low pressure alarm.  If you have pressure and the alarm is not going off but the gauges are not reading make sure the connectors are seated, maybe use a small ,bit of electrical grease to make sure there is good contact. If all that fails then it is likely a blue box issue.  If all of this is as it is then use a T from the existing line to the mechnical gauges.  This keeps the low pressure alarm functionlity as long as that works.

While you are in there find the alam annunciator (noisemaker) left side above the air brake control, about 1" in diameter and an inch long, two wires.  You can turn the top to adjust volume a bit. I added a switch on the ground side wire so I could shut it off after two days of non stop dinging.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN