Park Brake light staying on, no matter what position switch is in Gear with exclamation point on also Hooked pressure gage to #3 and #4 test ports have 350 to 370 psi on both at idle Hooked pressure gage to #7 test port, have 50psi, low and high idle, brake switch on or off what should I check next?
Need to see if you have ant codes do you have cat et
No don't have Cat ET but the light is lit up showing there is codes
Seeing as you don't have access to ET then it will be necessary to go old school. I hope you can find 2 paper clips which is all you will need. See the illustration below. The connector at the top left is known as the Harness Code connector. With the key OFF, unplug the two halves (one half will simply have some jumper wires in it, the other half is connected to the machine harness.). Turn the key ON and the Diagnostic Indicator #1 will start to flash a 3-digit code; a number of flashes followed by a short pause followed by more flashes, a second pause, then the last group of flashes. It will repeat this sequence until you scroll to the next Code. Use the attached procedure to identify the Diagnostic Codes and to scroll from one Code to the next. This is where the paperclips come in. Come back with your results.