DTC P1220 - Fuel Pump Control Module (FPCM)
- Check Power Supply Circuit
Turn ignition off. Disconnect FPCM and fuel pump harness connector. See Fig 1 and Fig 2 . Measure voltage between ground and FPCM connector terminals No. 2 and 4. See Fig 3. Measure voltage between ground and fuel pump connector terminal No. 2 (2-seat models) or terminal No. 4 (2+2 seat models). If battery voltage is present, go to next step. If voltage is not present, repair 30-amp fuse, harness or connectors as necessary. - Check Ground Circuit
Turn ignition off. Loosen and retighten FPCM fixing bolt. Verify harness continuity between FPCM connector terminal No. 5 and fuel pump connector terminal No. 4 (2-seat models) or terminal No. 6 (2+2 seat models). If continuity is present, go to next step. If continuity is not present, repair harness or connectors as necessary. - Check Output Signal Circuit
Turn ignition off. Disconnect ECM harness connector. Verify harness continuity as follows:- Between ECM terminal No. 15 and FPCM terminal No. 8.
- Between ECM terminal No. 16 and FPCM terminal No. 7.
If continuity is not present, repair harness or connectors as necessary. If continuity is present, go to next step.
- Check Input Signal Circuit
Leave ignition off. Verify harness continuity between ECM terminal No. 62 and FPCM terminal No. 5. If continuity is present, replace FPCM. If continuity is not present, repair harness or connectors as necessary.