SpareRadar OBD-II Code Lookup

P1791

Set by the manufacturer, so it means different things on different makes. 16 makes in the table below.

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What P1791 means, by make 16 makes
  • Acura A/T Concerns
  • Audi Wählbereichsanzeige signal for short circuit to ground 4717 18199
  • Chevrolet Transmission Control Module Loop
  • Chrysler ECT Level Input Circuit
  • Citroen TP (Electric) Circuit Malfunction
  • Dodge ECT Level Input Circuit
  • Ford TP (Electric) Circuit Malfunction
  • Honda Vehicle Speed Sensor (VSS) Range/Performance Problem
  • Jaguar Ignition Supply Malfunction
  • Jeep ECT Level Input Circuit
  • Kia Ignition Supply Malfunction
  • Mercedes-Benz TP (Electric) Circuit
  • Mitsubishi PCM ECT level signal to TCM circuit fault
  • Peugeot TP (Electric) Circuit Malfunction
  • Volkswagen Wählbereichsanzeige signal for short circuit to ground 4717 18199
  • Volvo Transmission Range Display Circ. Short to Ground

Each line is that manufacturer's own meaning for P1791. They are genuinely different faults, not rewordings of one, so a meaning listed against one make says nothing about the others. If your make is not listed, we do not hold it - your manufacturer's service information is the authority.

Code structure P1791
P
Powertrain
engine, transmission and emissions
1
Manufacturer-specific
Defined by the vehicle manufacturer, so the meaning varies between makes.
7
9
1
Fault index
identifies the specific fault
Powertrain Manufacturer-specific
Nearby codes in the P1 range
P178B manufacturer-specific, 2 makes P178D manufacturer-specific, 2 makes P178E manufacturer-specific, 2 makes P178F manufacturer-specific, 2 makes P1792 manufacturer-specific, 17 makes P1793 manufacturer-specific, 16 makes P1795 manufacturer-specific, 16 makes P1796 manufacturer-specific, 12 makes

Manufacturer code meanings from kierandrewett/obd (b56a07a), used under the MIT licence. Copyright (c) Kieran Drewett. SpareRadar is not affiliated with the dataset's authors.