The OBD code P0380 for Saab indicates a Glow Plug/Heater Circuit A Malfunction.
This affects the glow plug system, leading to symptoms like the engine being harder to start and the Engine Light being ON.
Common causes include a faulty glow plug, open or shorted glow plug harness, or poor electrical connection in the circuit.
It is a moderate issue that can be fixed by inspecting and repairing the wiring harness and connectors related to the glow plug system.
Repair Importance Level | 10.0 (Out of 10) |
Estimated Repair Time | Approximately 1.0 hour |
Repair Difficulty Level | 6.67 (Out of 10) |
Symptoms of the Saab p0380 OBD Code
The vehicle may experience difficulty starting in cold weather with fault code P0380 on a Saab.
- Symptoms: Engine Light ON.
- The engine may be harder to start.
Causes of the Saab p0380 OBD Code
Fault code P0380 in a Saab typically indicates an issue with the glow plug circuit.
Do you know you can clear most fault codes—but some could mean serious danger? Don’t take chances with your safety or your family’s safety. This budget-friendly car scanner makes it easy to clear fault codes in seconds while showing you exactly what’s wrong. Plug it in, connect to your Android or iOS phone, and instantly check live data. You’ll know if it’s a minor issue you can clear or something serious that needs attention—so you can drive safely and stress-free. (Today’s Deal)
- P0380 can be caused by a faulty Glow Plug.
- A Glow Plug harness that is open or shorted.
- A Glow Plug circuit with poor electrical connection.
Fixing Saab Error Code p0380 Step By Step
Diagnose and repair any issues with the glow plug circuit to address Saab fault code P0380.
- To fix a Saab OBDII code P0380, first, review the possible causes related to the code.
- Visually examine the wiring harness and connectors associated with the glow plug/heater circuit.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Test the glow plug/heater operation to ensure proper functionality.
- Replace any faulty glow plugs or the glow plug relay if necessary.
- Clear the fault codes from the vehicle’s computer using a scan tool.
- Finally, perform a test drive to verify that the issue has been resolved.
Cost Of Fixing Saab p0380 Fault Code
Diagnosing and repairing Saab fault code P0380 may involve testing and replacing the glow plug circuit components.
The cost to diagnose and fix a Saab OBD code P0380 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop location, and the complexity of the repair needed.
That fault code is a turning point. If repair costs are climbing and your current loan feels like it’s holding you back, this is the time to plan ahead. The free Car Loan Payment Tracker helps you see how quickly you can pay off what’s left—and start preparing, with confidence, for your dream car.
Details of the Saab p0380 OBD Code
Saab P0380 code relates to a glow plug/heater circuit malfunction in the engine.
OBD code P0380 for Saab vehicles indicates a fault with the Glow Plug/Heater Circuit A.
This code is triggered by the Engine Control Module (ECM) when it detects an electrical issue in the circuit related to the glow plug or heater system.
The glow plug/heater circuit is responsible for preheating the combustion chamber in diesel engines for easier starting in cold conditions.
When this circuit malfunctions, it can lead to starting difficulties, rough idling, and increased emissions.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing fault code P0380 in Saab vehicles.
OBDII code P0380 in a Saab typically indicates an issue with the glow plug/heater circuit.
To diagnose, use a voltmeter to check power and ground at the glow plug module.
Inspect wiring for damage and connectors for corrosion.
Test glow plugs for proper resistance.
A scan tool can help monitor live data and check for communication errors with the glow plug module.
If no issues are found, consider reprogramming the engine control module.
FAQ
Common causes of OBD code P0380 in a Saab: Faulty Glow Plug, open/shorted Glow Plug harness, poor electrical connection in Glow Plug circuit. Visually inspect and repair wiring/connectors.
Diagnose P0380 in Saab: Check glow plug, harness, and circuit for faults. Inspect wiring for damage or poor connections. Repair as needed.
It is not safe to continue driving with a P0380 fault code. The engine may be harder to start due to a faulty glow plug.

Wrap Up
If your Saab is displaying OBD code P0380, you may experience hard starting, rough idling, or stalling.
This code typically indicates a fault with the glow plug/heater circuit, possibly caused by faulty glow plugs, a defective glow plug control module, or damaged wiring connections.
To address Saab OBD code P0380, begin by checking the glow plug system components for proper operation.
Inspect the glow plugs for continuity, test the glow plug control module, and examine the wiring harness for any signs of damage or corrosion.
Replace any faulty glow plugs or components as needed
Resources
- Dodge B1d92
- Ram B14be
- Kia P0152
- Mercury C1446
- Dodge P0909
- Lincoln P2127
- Mercury P0326
- Mercury P000b
- Ram P020e
- Mercury P0660
- Lincoln B1a61
- Mazda P1116
- Dodge B25bd
- Mini P1333
- Fiat P1d6a
- Dodge P2641
- Jeep P0839
- Kia B1487
- Pontiac P0125
- Mercury U0420
- Dodge B2304
- Mazda P2188
- Mazda P0304
- Mini P0171
- Fiat P1dcd
- Mercury P1359
- Ram C2223
- Mercury P1700
- Ram B2861
- Lincoln P2247