Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
The cost to diagnose the P1005 CADILLAC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
The fuel pump driver control module sends a message every 100 ms to the Engine Control Module (ECM) that indicates the amount of time elapsed since the last controller reset (power up or running reset). This message is used to detect if the fuel pump driver control module has unexpectedly reset and will eventually set a Diagnostic Trouble Code (DTC) if the resets continue.
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