P1387 Audi Code - Control Unit Internal Altitude Sensor
Quick Answer
P1387 Audi indicates Control Unit Internal Altitude Sensor. Common causes include Faulty Control Module, Control Module harness is open or shorted, Control Module 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
- P1387 Audi indicates Control Unit Internal Altitude Sensor.
- Common causes
- Common causes include Faulty Control Module, Control Module harness is open or shorted, Control Module 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 P1387 Audi Description
What are the Possible Causes of the DTC P1387 Audi?
- Faulty Control Module
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC P1387 Audi?
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 P1387 Audi 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 P1387 Audi Code
1. What does the OBDII code P1387 mean for an Audi?
P1387 indicates an issue with the internal altitude sensor within the control unit, which helps adjust engine performance based on altitude.
2. What are the common symptoms of code P1387 in an Audi?
Symptoms may include poor engine performance, reduced fuel efficiency, misfires, or difficulty starting the engine.
3. What causes the P1387 code in an Audi?
Common causes include a malfunctioning altitude sensor, control unit software issues, or electrical problems such as damaged wiring or connectors.
4. Can I drive my Audi with a P1387 code?
While it may be possible to drive the car, the code can lead to inefficiencies in engine performance and should be addressed promptly to avoid further issues.
5. How do I diagnose the P1387 code in an Audi?
Diagnosis involves scanning for codes, inspecting the control unit and wiring, testing the altitude sensor, and checking for software updates.
6. How can I fix the P1387 code in an Audi?
Repair options include replacing the altitude sensor, repairing wiring or connectors, updating control unit software, or replacing the control unit if necessary.
7. Is the P1387 code specific to certain Audi models?
The code can appear in various Audi models equipped with an internal altitude sensor; however, its prevalence may vary by model and year.
8. How much does it cost to fix the P1387 code in an Audi?
Repair costs depend on the underlying issue but typically range from $150 to $800, including diagnostics, parts, and labor.
9. Can a faulty altitude sensor affect engine performance?
Yes, a malfunctioning altitude sensor can disrupt air-fuel mixture calculations, leading to reduced performance and efficiency.
10. Will clearing the P1387 code fix the problem?
Clearing the code may temporarily remove it, but the underlying issue must be resolved to prevent the code from returning.
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