P0659 Code - Actuator Supply Voltage 'A' Circuit High
Quick Answer
The Powertrain Control Module (PCM) monitors the transmission solenoid circuits by supplying voltage to the solenoids through this circuit, then checking for voltage returning from the solenoids through each of the individual solenoid control wires. Common causes include Faulty Transmission Solenoids, Transmission Solenoids harness is open or shorted, Transmission Solenoids 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
- P0659 indicates Actuator Supply Voltage 'A' Circuit High.
- Common causes
- Common causes include Faulty Transmission Solenoids, Transmission Solenoids harness is open or shorted, Transmission Solenoids 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 P0659 Description
What are the Possible Causes of the DTC P0659?
- Faulty Transmission Solenoids
- Transmission Solenoids harness is open or shorted
- Transmission Solenoids circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P0659?
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 P0659 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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Information for Specific Makes
- P0659 Audi — Actuator Supply Voltage 'A' Circuit High
- P0659 Buick — Actuator High Control Circuit Group 1 High Voltage
- P0659 Cadillac — Actuator High Control Circuit Group 1 High Voltage
- P0659 Chevrolet — Actuator High Control Circuit Group 1 High Voltage
- P0659 Dodge — Actuator Supply Voltage 'A' Circuit High
- P0659 Ford — Actuator Supply Voltage 'A' Circuit High
- P0659 GMC — Actuator High Control Circuit Group 1 High Voltage
- P0659 Land Rover — Actuator Supply Voltage 'A' Circuit High
- P0659 Lincoln — Actuator Supply Voltage 'A' Circuit High
- P0659 Mercury — Actuator Supply Voltage 'A' Circuit High
- P0659 Volkswagen — Actuator Supply Voltage 'A' Circuit High
Frequently Asked Questions about P0659 Code
1. What does the OBDII code P0659 mean?
P0659 indicates that the actuator supply voltage 'A' circuit is registering a voltage level higher than expected, which may affect various actuators in the vehicle.
2. What are the common symptoms of code P0659?
Common symptoms include reduced engine performance, erratic behavior of actuators, warning lights on the dashboard, and potential limp mode activation.
3. What causes code P0659?
Possible causes include a short circuit, damaged wiring, failed actuator control module, or a faulty actuator.
4. Can I drive my car with code P0659?
Driving with P0659 is not recommended, as it may lead to further damage or unpredictable performance issues.
5. How do I diagnose code P0659?
Diagnosis involves checking wiring and connections for damage, testing the actuator control module, and inspecting the affected actuator for faults.
6. How do I fix code P0659?
Repairs may include replacing damaged wiring, repairing electrical connections, or replacing the faulty actuator or control module.
7. Will clearing the code fix P0659?
Clearing the code won't fix the underlying issue; you need to address the root cause to prevent the code from returning.
8. How much does it cost to fix code P0659?
Repair costs vary depending on the cause but can range from $100 for simple wiring fixes to several hundred dollars if a module or actuator replacement is needed.
9. Can a bad battery cause code P0659?
A weak or failing battery can contribute to voltage-related issues, but it’s not a primary cause of P0659.
10. What tools do I need to diagnose code P0659?
You’ll need an OBDII scanner, a multimeter for voltage testing, and access to the vehicle’s wiring diagrams.
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