Note On Intermittents

If an intermittent Code 16 is being set, observe engine data parameter .1.0. This "battery voltage" reading is monitored off the fuel pump feedback input (circuit 120) which is also used to set Code 16. If the Code is being set due to high current draw in a certain vehicle component, this effect can be observed reading parameter .1.0. Operate the various components while watching for the reading to drop below 10.5 volts. This will help to isolate the location of the malfunction.