P1312 Subaru Code - Exhaust Temperature Sensor Malfunction
Quick Answer
P1312 Subaru indicates Exhaust Temperature Sensor Malfunction. Common causes include Faulty Exhaust Temperature Sensor, Exhaust Temperature Sensor harness is open or shorted, Exhaust Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1312 Subaru indicates Exhaust Temperature Sensor Malfunction.
- Common causes
- Common causes include Faulty Exhaust Temperature Sensor, Exhaust Temperature Sensor harness is open or shorted, Exhaust Temperature Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1312 Subaru Description
What are the Possible Causes of the DTC P1312 Subaru?
- Faulty Exhaust Temperature Sensor
- Exhaust Temperature Sensor harness is open or shorted
- Exhaust Temperature Sensor circuit poor electrical connection
How to Fix the DTC P1312 Subaru?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1312 Subaru code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1312 Subaru Code
1. What does the OBDII code P1312 mean on a Subaru?
P1312 indicates an Exhaust Temperature Sensor Malfunction, meaning the sensor is not providing accurate data to the engine control module (ECM).
2. What are the symptoms of the P1312 code on a Subaru?
Common symptoms include reduced fuel efficiency, engine misfires, poor performance, and the check engine light illuminating.
3. What causes the P1312 code to appear on a Subaru?
Potential causes include a faulty exhaust temperature sensor, damaged wiring or connectors, excessive soot buildup, or an issue with the ECM.
4. Can I drive my Subaru with the P1312 code?
Driving with this code is not recommended as it may cause further damage to the exhaust system or catalytic converter if left unresolved.
5. How do I diagnose the P1312 code on a Subaru?
Start by inspecting the exhaust temperature sensor and its wiring for damage or corrosion. Use a multimeter to test the sensor’s resistance and compare it to manufacturer specifications.
6. How do I fix the P1312 code on a Subaru?
Repairs may include replacing the exhaust temperature sensor, repairing damaged wiring, cleaning soot buildup, or reprogramming the ECM if necessary.
7. Where is the exhaust temperature sensor located on a Subaru?
The sensor is typically located near the exhaust manifold or catalytic converter, depending on the model.
8. What tools are needed to fix the P1312 code on a Subaru?
You may need a diagnostic scanner, multimeter, socket wrenches, and possibly a replacement exhaust temperature sensor.
9. How much does it cost to fix the P1312 code on a Subaru?
The cost can range from $150 to $400, depending on whether only the sensor needs replacement or additional repairs are required.
10. Can a faulty exhaust temperature sensor damage my Subaru’s engine?
While it won’t directly harm the engine, ignoring the issue can lead to overheating or damage to the catalytic converter over time.
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