OBDII Code List

P1793 LINCOLN - Ignition Supply Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Ignition Switch Position Run (ISP-R)
  • ISP-R harness is open or shorted
  • ISP-R circuit poor electrical connection
  • Low battery charge

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1793 Lincoln Description

The 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.
OBDII Code P1793 Lincoln - Ignition Supply Malfunction -

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P1793 LINCOLN Comments

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