P2501
Generator Lamp/L-Terminal Circuit High
P2501 is an OBD-II diagnostic trouble code meaning: Generator Lamp/L-Terminal Circuit High. Common causes: open or short circuit in the generator warning lamp circuit, generator malfunction. Estimated repair cost: $17–89.
Symptoms
- The alternator warning light on the dashboard is on or flashing
- Unstable operation of the charging system
- Reduced voltage in the on-board network
- Problems starting the engine
- Low battery
Causes
- Open or short circuit in the generator warning lamp circuit
- Generator malfunction
- Poor contact in circuit connectors
- Faulty warning lamp on the dashboard
- Problems with the engine control module (ECM)
How to Fix
- Check the condition of the generator and its performance
- Inspect the warning lamp circuit for damage.
- Check all connections and connectors in the circuit
- Test the warning light on the dashboard
- If necessary, replace the generator or repair the wiring
Related codes
Error P2501 by Vehicle Brand
FAQ
What does the P2501 code mean?
P2501 is an OBD-II diagnostic trouble code that indicates: Generator Lamp/L-Terminal Circuit High
What causes a P2501 error code?
The most common causes of P2501 include: Open or short circuit in the generator warning lamp circuit; Generator malfunction; Poor contact in circuit connectors; Faulty warning lamp on the dashboard.
How do I fix a P2501 diagnostic trouble code?
To fix P2501: Check the condition of the generator and its performance. Inspect the warning lamp circuit for damage.. Check all connections and connectors in the circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2501?
Limited driving only, diagnose soon
How much does it cost to fix P2501?
The estimated repair cost for P2501 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat