Inertia Switch
- Locate inertia switch in rear of vehicle. Using a jumper lead, ground FP terminal at self-test connector. See Figure . Turn ignition on, leaving engine off. Leaving inertia switch connector attached, check voltage at connector. If voltage is not present, repair circuit. If 10.5 volts is present at one terminal only, replace inertia switch.
- If 10.5 volts is present at both terminals, turn ignition off. Push down on reset button to ensure switch is closed. Measure resistance between terminals on 2-wire switches. On 1.9L, measure resistance between GND and FP terminals. See Fig 1 .
- If resistance is 5 ohms or less, switch is okay. If resistance is greater than 5 ohms, replace switch. For additional circuit testing information, refer to CIRCUIT TEST J in TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE section.