Chrysler 41 Alternator Field Circuit
How to read it
Code 41 reads as 4 flashes, pause, 1 flash on the check-engine light. Cycle the ignition key on, off, on, off, then leave it on with the engine off, and count the flashes on the power loss or check-engine light.
New to flash codes? The How to Read Chrysler OBD-I Codes with the Key Cycle walks through the test and what the numbers mean. The general OBD-I guide covers the rest.
What does Chrysler code 41 mean?
Alternator Field Circuit
Common causes of 41
- Failed alternator field or voltage regulator
- Open or shorted field winding control wire
- Worn alternator belt slipping under load
- Faulty field driver in the controller
How to fix 41
- Measure charging voltage with the engine running and loads on
- Inspect the alternator field wiring and connector for damage
- Check the alternator belt condition and tension
- Test the field winding and voltage regulator per the manual
- Repair wiring or replace the alternator only if it fails tests
- Clear the code and confirm charging voltage holds steady
Source
Qualified source review
Sources and review
Review: qualified. Read the source limits below.
- Chrysler OBD-I trouble codes, model and year page
live reference page (troublecodes.net)
Supports: code identity and Chrysler meaning
Fetched directly from the linked model page. Single publisher, so the record is qualified, not verified. Causes and check order are curator-written from the circuit the code names.
https://www.troublecodes.net/chrysler/84-95tbi/
- Chrysler OBD-I trouble codes, model and year page
live reference page (troublecodes.net)
Supports: code identity and Chrysler meaning
Fetched directly from the linked model page. Single publisher, so the record is qualified, not verified. Causes and check order are curator-written from the circuit the code names.
https://www.troublecodes.net/chrysler/85-95_22-25/
Last updated 2026-10-10.
Report a correction for 41. Include your vehicle, the issue and a source if you have one.