P1584 Code - Throttle Control Unit Input Circuit Malfunction
Quick Answer
The P1584 code indicates a malfunction in the throttle control unit input circuit. Common causes include Faulty throttle control unit, Wiring or connector issues in the throttle control unit circuit, Corrosion or damage to the throttle control unit components. 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
- P1584 indicates Throttle Control Unit Input Circuit Malfunction.
- Common causes
- Common causes include Faulty throttle control unit, Wiring or connector issues in the throttle control unit circuit, Corrosion or damage to the throttle control unit components.
- 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.
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Code P1584 Description
The P1584 code indicates a malfunction in the throttle control unit input circuit. This means that there is a problem with the communication between the throttle control unit and the engine control module. The throttle control unit is responsible for regulating the amount of air entering the engine, which is crucial for proper combustion and engine performance. When this circuit malfunctions, it can lead to issues with throttle response, engine performance, and fuel efficiency.
Common Causes of P1584
- Faulty throttle control unit
- Wiring or connector issues in the throttle control unit circuit
- Corrosion or damage to the throttle control unit components
- Engine control module malfunction
- Electrical interference or short circuits
Symptoms of P1584
- Rough idling or stalling
- Reduced engine power
- Difficulty accelerating
- Check Engine Light illuminated
- Poor fuel economy
How to Fix P1584
- Perform a thorough inspection of the throttle control unit and its wiring for any signs of damage or corrosion.
- Test the throttle control unit input circuit using a multimeter to check for proper voltage and continuity.
- Replace any faulty throttle control unit components, wiring, or connectors.
- Clear the diagnostic trouble codes and reset the engine control module.
- Test drive the vehicle to ensure the issue has been resolved and the code does not return.
Cost to Fix P1584
The cost of repairing a throttle control unit input circuit malfunction can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts for this repair can range from $100 to $300, while labor costs can range from $100 to $300 as well. Overall, the total repair cost for this issue can be anywhere from $200 to $600. It's important to keep in mind that these are rough estimates and actual costs may vary based on the factors mentioned above.
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Code P1584 Information for Specific Makes
- P1584 Buick — Cruise Control Disabled
- P1584 Cadillac — Cruise Control Disabled
- P1584 Chevrolet — Cruise Control Disabled
- P1584 Ford — Throttle Control Unit Input Circuit Malfunction
- P1584 GMC — Cruise Control Disabled
- P1584 Honda — Brake Fluid Pressure Sensor 'B' Circuit Low Voltage
- P1584 Jaguar — Throttle Actuation Malfunction
- P1584 Mercedes-Benz — Brake Pedal Position Switch Malfunction
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