Code Definition

P1192 — Voltage External

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Generic

About P1192

P1192 is a manufacturer-specific powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1192 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

This code relates to the external supply voltage that the control module monitors at its main power feed from the vehicle electrical system. DTC P1192 is set when the module detects that this external supply voltage has moved outside its acceptable operating window, either too high or too low, during key on or engine running conditions. The module continuously compares the incoming battery and charging system voltage against internal reference thresholds to confirm the electrical system is delivering stable power. When this code is stored the driver may notice warning lamps, erratic operation ...

Join TaT to view the complete code information and diagnostic details.

Quick Facts