P1503 Code - Load Signal From Alternator DF Terminal Implausible Signal
Quick Answer
P1503 indicates Load Signal From Alternator DF Terminal Implausible Signal. Common causes include Faulty Alternator, Alternator harness is open or shorted, Alternator 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
- P1503 indicates Load Signal From Alternator DF Terminal Implausible Signal.
- Common causes
- Common causes include Faulty Alternator, Alternator harness is open or shorted, Alternator 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 P1503 Description
What are the Possible Causes of the DTC P1503?
- Faulty Alternator
- Alternator harness is open or shorted
- Alternator poor electrical connection
How to Fix the DTC P1503?
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 P1503 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
- P1503 Audi — Load Signal From Alternator DF Terminal Implausible Signal
- P1503 BMW — Idle Speed Control Valve Closing Solenoid Control Circuit Signal Low
- P1503 Buick — Theft Deterrent Fuel Enable Signal Not Correct
- P1503 Cadillac — Theft Deterrent Fuel Enable Signal Not Correct
- P1503 Chevrolet — Theft Deterrent Fuel Enable Signal Not Correct
- P1503 GMC — Theft Deterrent Fuel Enable Signal Not Correct
- P1503 Hyundai — Auto Cruise Control Switch
- P1503 KIA — Auto Cruise Control Switch
- P1503 MINI — Idle Speed Control Valve Closing Solenoid Control Circuit Signal Low
- P1503 Volkswagen — Load Signal From Alternator DF Terminal Implausible Signal
Frequently Asked Questions about P1503 Code
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