Fuel Pump Control Module
WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connectors at the K27 fuel pump control module.
- Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 Ω between the ground circuit terminal 25 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Verify that a test lamp illuminates between the IGN/B+ circuit terminals listed below and ground:
- Terminal 1
- Terminal 21
- If the test lamp does not illuminate, test the IGN/B+ circuit for a short to ground or an open/high resistance.
- If all circuits test normal, replace the K27 fuel pump control module.