Operation CHARM: Car repair manuals for everyone.

X94 - Check Power Pump Continuity Between CCRM and IFS Switch



- Key "OFF".

- Constant Control Relay Module (CCRM) disconnected.

- Disconnect Inertia Fuel Shutoff (IFS) switch.

- Measure resistance between Pin 5 at the CCRM vehicle harness connector and the power-to-pump circuit from the CCRM circuit at the IFS switch vehicle harness connector.

- Is resistance less than 5.0 ohms?

Yes -- Go to X95. X95 - Check PCM Ability to Monitor FPM

No -- Service open in power-to-pump circuit between CCRM and splice to LFP relay. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)