Ford P0673 Code is a diagnostic trouble code (DTC) that indicates a problem with the glow plug circuit in a Ford vehicle. This code is triggered when the powertrain control module (PCM) detects an issue with the glow plug circuit or the glow plug itself, and sends a message to the PCM. Common causes of the Ford P0673 Code include a glow plug circuit open, a glow plug circuit short to ground, a glow plug circuit short to voltage, and a damaged glow plug. To diagnose this code, mechanics must check the glow plug wire harness for an open or a short circuit.
Causes and Solutions to Ford P0673 Code
| Cause | Solution |
|---|---|
| Glow plug circuit open | Check for an open circuit in the glow plug wire harness. |
| Glow plug circuit short to ground | Inspect the wiring and connectors of the glow plug circuit. |
| Glow plug circuit short to voltage | Check the glow plug harness for a short. |
| Damaged glow plug | Replace any defective or damaged glow plugs. |
Glow Plug Circuit Open
When the Ford P0673 code is triggered, it indicates that the powertrain control module (PCM) has detected an open circuit in the glow plug wire harness. To diagnose this code, the mechanic must inspect the glow plug wire harness for any visible damage, such as worn or frayed wires, or corroded connectors. If the harness is intact, the mechanic must use a digital multimeter to check for continuity. If the circuit is open, the mechanic must repair or replace the glow plug wire harness.
Glow Plug Circuit Short to Ground
If the Ford P0673 code is triggered, it can also indicate that the glow plug circuit is shorted to ground. To diagnose this code, the mechanic must inspect the wiring and connectors of the glow plug circuit for any visible damage, such as worn or frayed wires, or corroded connectors. If the wiring and connectors are intact, the mechanic must use a digital multimeter to check for a short to ground. If the circuit is shorted to ground, the mechanic must repair or replace the glow plug wire harness.
Glow Plug Circuit Short to Voltage
If the Ford P0673 code is triggered, it can also indicate that the glow plug circuit is shorted to voltage. To diagnose this code, the mechanic must inspect the wiring and connectors of the glow plug circuit for any visible damage, such as worn or frayed wires, or corroded connectors. If the wiring and connectors are intact, the mechanic must use a digital multimeter to check for a short to voltage. If the circuit is shorted to voltage, the mechanic must repair or replace the glow plug wire harness.
Damaged Glow Plug
If the Ford P0673 code is triggered, it can also indicate that the glow plug is damaged. To diagnose this code, the mechanic must inspect the glow plugs for any visible damage, such as cracks or corrosion. If the glow plug is damaged, the mechanic must replace the glow plug with a new one.
Conclusion
In conclusion, the Ford P0673 Code is triggered when the powertrain control module detects an issue with the glow plug circuit or the glow plug itself. Common causes of the Ford P0673 Code include a glow plug circuit open, a glow plug circuit short to ground, a glow plug circuit short to voltage, and a damaged glow plug. To diagnose this code, mechanics must check the glow plug wire harness for an open or a short circuit, inspect the wiring and connectors of the glow plug circuit, and replace any defective or damaged glow plugs. If you are experiencing issues with the Ford P0673 Code, it is important to contact a qualified mechanic as soon as possible to get the issue resolved.
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