P1590 Audi Code - AC/Heater Air Temperature Control Switch Open Circuit
Quick Answer
P1590 Audi indicates AC/Heater Air Temperature Control Switch Open Circuit. Common causes include Faulty AC/Heater Air Temperature Control Switch, AC/Heater Air Temperature Control Switch harness is open or shorted, AC/Heater Air Temperature Control Switch 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
- P1590 Audi indicates AC/Heater Air Temperature Control Switch Open Circuit.
- Common causes
- Common causes include Faulty AC/Heater Air Temperature Control Switch, AC/Heater Air Temperature Control Switch harness is open or shorted, AC/Heater Air Temperature Control Switch 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 P1590 Audi Description
What are the Possible Causes of the DTC P1590 Audi?
- Faulty AC/Heater Air Temperature Control Switch
- AC/Heater Air Temperature Control Switch harness is open or shorted
- AC/Heater Air Temperature Control Switch circuit poor electrical connection
How to Fix the DTC P1590 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 P1590 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 P1590 Audi Code
What does the OBDII code P1590 mean for an Audi?
The code P1590 indicates an open circuit issue with the AC/Heater Air Temperature Control Switch in your Audi's HVAC system.
What are the common symptoms of the P1590 code?
Symptoms may include inconsistent cabin temperature, lack of response from the temperature control switch, or HVAC system malfunction.
What causes the P1590 code to appear?
Common causes include a faulty temperature control switch, damaged wiring, corroded connectors, or a malfunctioning HVAC control module.
How can I diagnose the P1590 code?
Diagnosis typically involves inspecting the temperature control switch, checking wiring and connectors for damage, and testing the HVAC control circuit with a multimeter.
Can I still drive my Audi with the P1590 code?
Yes, you can drive the vehicle, but the HVAC system may not function properly, potentially leading to discomfort in extreme weather conditions.
How do you fix the P1590 code?
Repairs may include replacing the temperature control switch, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming the HVAC control module if necessary.
How much does it cost to fix the P1590 code?
Repair costs can vary but typically range from $100 to $300 depending on whether parts like the temperature control switch or wiring need replacement.
Can a P1590 code be caused by a blown fuse?
Yes, a blown fuse related to the HVAC system can potentially cause an open circuit and trigger the P1590 code.
Will clearing the P1590 code with a scan tool fix the issue?
Clearing the code will reset the system temporarily, but unless the underlying issue is addressed, the code is likely to return.
Is the P1590 code specific to certain Audi models?
The code can appear in various Audi models equipped with OBDII systems and specific HVAC setups, but the exact configuration may vary by model and year.
Discuss the causes and fixes for P1590 Audi OBDII Code
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