DTC P1793 - Ignition Supply Malfunction
WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 2019 Lincoln Navigator, 2019 Lincoln Nautilus, 2019 Lincoln MKZ, 2019 Lincoln MKT, and 2019 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
DTC DESCRIPTION P1793 - IGNITION SUPPLY MALFUNCTION
| Description: The ISP-R circuit is monitored for low and high voltage conditions. This DTC sets when the voltage is less than 7 volts or greater than 16 volts. | |||
Possible Causes:
|
|||
| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST B . | ||