Code Definition

P1363 — Ignition coil cylinder 3 circuit shorted to ground

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

About P1363

P1363 is a manufacturer-specific powertrain diagnostic trouble code recorded for Audi vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1363 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

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.

P1363 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

On coil on plug ignition systems the Engine Control Module controls each cylinder's coil individually, supplying the coil with battery voltage and switching an output stage on the low side to charge the primary winding for the dwell period. Between dwell events the module expects the control line to return toward battery voltage through the coil winding, so a line held low tells it something other than its own driver is earthing the circuit. DTC P1363 is stored when the ECM detects the cylinder 3 ignition coil circuit shorted to ground. With the control line permanently earthed the module lose...

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