Chrysler 27 Injector Control Circuit
How to read it
Code 27 reads as 2 flashes, pause, 7 flashes 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 27 mean?
Injector Control Circuit
Common causes of 27
- Open or shorted injector control wire
- Failed controller injector driver
- Shorted or open injector coil
- Corroded connector at the injector or controller
How to fix 27
- Identify the injector circuit the code names
- Test injector coil resistance per the service manual
- Inspect the control wiring for opens, shorts and chafing
- Check the controller connector for corrosion and backed out pins
- Repair wiring or replace the injector before the controller
- Clear the code and retest the engine run
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 27. Include your vehicle, the issue and a source if you have one.