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 P1043 Volkswagen 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 Engine Control Module (ECM) monitors the Injector 3 Supply Voltage. The ECM sets the Diagnostic Trouble Code (DTC) when the Injector 3 Supply Voltage is not to factory specifications.
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