P1793 LINCOLN - Ignition Supply Malfunction
- Faulty Ignition Switch Position Run (ISP-R)
- ISP-R harness is open or shorted
- ISP-R circuit poor electrical connection
- Low battery charge
- Engine Light ON (or Service Engine Soon Warning Light)
P1793 Lincoln DescriptionThe powertrain control module (PCM) monitors the Ignition Switch Position Run (ISP-R) circuit. This DTC sets if the voltage drops below 7 volts or rises above 16 volts.
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