Colt L4-1597cc 1.6L SOHC Turbo (1985)
Fig. 18 ECU terminal identification. Conquest w/intercooler
Using output signal diagnosis chart, Fig. 14 , connect voltmeter to diagnostic connector, Fig. 17 or Fig 18, as specified in "Terminal Location of
Computer" column in diagnostic chart. Check voltage at each terminal, ensuring tests are made under conditions specified.
When checking the ISC motor position switch, if ignition switch is turned on for 15 seconds or more, the reading will drop momentarily below 5 volts.
When checking pressure sensor with engine idling, the reading will increase momentarily to 1.5-2.6 volts every 2 minutes.
