P1590 Volkswagen Code - AC/Heater Air Temperature Control Switch Open Circuit
Quick Answer
P1590 Volkswagen 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 Volkswagen 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 Volkswagen Description
What are the Possible Causes of the DTC P1590 Volkswagen?
- 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 Volkswagen?
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 Volkswagen 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 Volkswagen Code
1. What does the OBDII code P1590 mean in a Volkswagen?
P1590 indicates an open circuit in the AC/Heater Air Temperature Control Switch, meaning the system is unable to properly control the cabin temperature.
2. What are the common symptoms of code P1590 in a Volkswagen?
Symptoms include inconsistent cabin temperature, inability to adjust heat or AC, and possible warning lights on the dashboard.
3. What causes the P1590 code in a Volkswagen?
The primary causes are a faulty temperature control switch, damaged wiring, loose electrical connections, or a malfunctioning control module.
4. Can a faulty AC/Heater Air Temperature Control Switch cause the P1590 code?
Yes, a defective or damaged control switch is a common cause of this error code.
5. How can I diagnose the P1590 code in my Volkswagen?
Use an OBDII scanner to confirm the code, visually inspect the wiring and connections, and test the functionality of the temperature control switch.
6. Is it safe to drive with the P1590 code active in a Volkswagen?
Yes, it is generally safe to drive, but the cabin temperature may not function as desired, leading to discomfort in extreme weather.
7. What are the repair options for the P1590 code?
Repairs may include replacing the temperature control switch, repairing damaged wiring, or reconnecting loose electrical connections.
8. How much does it cost to fix the P1590 code in a Volkswagen?
The cost depends on the issue, but replacing the temperature control switch typically ranges from $100 to $300, including parts and labor.
9. Can I fix the P1590 code on my own?
If you have basic automotive repair knowledge, you can inspect and replace the control switch or repair wiring. Otherwise, seek professional help.
10. Will clearing the P1590 code with a scanner fix the issue?
Clearing the code will not fix the root cause. The issue must be diagnosed and repaired to prevent the code from returning.
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