Grit Valve
2000 4.6 Vouge
To do self diagnostics. Bridge terminal 4 & 15. Now turn ignition to 2nd position. trouble codes Will display after short pause .each code repeated 3 times. First code 12 (start test) eml flashes once (signifies 1) pause then 2 flashes once (signifies 2) this repeated total 3 times. Then any codes are displayed in same format. 34 would be 3 flashes pause 4 flashes repeated total 3 times. End of test Will be code 12 again. When i have time Will write it up with ill codes qs well. Only works on diesel p38