Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fuel Pump Electrical Circuit Diagnosis
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Battery Voltage - Relay Switch Side | (1) | (2) | - | - | ||||||
| Fuel Pump Supply Voltage | (1) | (2) | (3) | - | ||||||
| Fuel Pump Relay Control | P0230 | P0230 | P0230 | - | ||||||
| Fuel Pump Relay Ground | P0230 | P0230 | P0230 | - | ||||||
| Fuel Pump Ground | - | (2) | - | - | ||||||
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