P0626 Code - Generator Field Terminal Circuit High
Quick Answer
The Powertrain Control Module (PCM) monitors generator load from the generator/regulator in the form of frequency. Common causes include Faulty battery, Generator drive belt missing or loose, Faulty Generator. 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
- P0626 indicates Generator Field Terminal Circuit High.
- Common causes
- Common causes include Faulty battery, Generator drive belt missing or loose, Faulty Generator.
- 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 P0626 Description
What are the Possible Causes of the DTC P0626?
- Faulty battery
- Generator drive belt missing or loose
- Faulty Generator
- Generator harness is open or shorted
- Generator circuit poor electrical connection
How to Fix the DTC P0626?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0626 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
- P0626 Ford — Generator Field Terminal Circuit High
- P0626 KIA — Generator Field Terminal Circuit High
- P0626 Mazda — Generator Field Terminal Circuit High
Frequently Asked Questions about P0626 Code
1. What does the OBDII code P0626 mean?
P0626 indicates that the engine control module (ECM) has detected a high voltage condition in the generator field terminal circuit, which is part of the alternator's electrical system.
2. What are the common symptoms of code P0626?
Symptoms may include a malfunctioning alternator, battery not charging, dim or flickering headlights, a discharged battery, or the vehicle failing to start.
3. What causes the P0626 code to appear?
Common causes include a faulty alternator, damaged wiring or connectors in the generator field circuit, a defective ECM, or a blown fuse.
4. How is the P0626 code diagnosed?
A technician will inspect the alternator, check for damaged wiring or connectors, test the generator field terminal circuit for proper voltage, and scan for related trouble codes.
5. Can I drive with the P0626 code?
Driving with this code is not recommended, as the battery may not charge properly, leading to potential engine stalling or electrical system failure.
6. How can I fix the P0626 code?
Repairs may involve replacing the alternator, repairing damaged wiring or connectors, replacing blown fuses, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to repair a P0626 code?
Repair costs vary depending on the root cause but typically range from $200 to $600 for alternator replacement, with additional costs for wiring or ECM repairs.
8. Can a weak battery cause the P0626 code?
A weak battery is unlikely to directly cause the P0626 code, but it can exacerbate charging system issues. Always ensure the battery is in good condition during diagnosis.
9. What tools are needed to troubleshoot the P0626 code?
Common tools include a digital multimeter, an OBDII scanner, and potentially a wiring diagram for the vehicle's charging system.
10. Does the P0626 code mean the alternator is definitely bad?
Not necessarily. While a faulty alternator is a common cause, the issue could also stem from wiring problems, blown fuses, or a malfunctioning ECM. Proper diagnosis is essential.
Discuss the causes and fixes for P0626 OBDII Code
-
I'm getting a p0626code on my hyundai accent 2010. The battery was faulty, I replaced it. But Im still getting the code. I don't notice any symptoms.
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Next step is to check how the alternator is charging. Should have about 14-15 Volts with the engine running.
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