Code Alarm Door Trigger Diode Interface

Diode for use in Code Alarm system installations (Model DTDI1)

  • Code Alarm Door Trigger Diode Interface


Crutchfield OMC logo
We don't check this item for fit or compatibility.
Item# 220DTDI1

Review Summary

This item is no longer available to purchase.
Contact us for other options
Call   Email  

Our take on the Code Alarm Door Trigger Diode Interface

by Ken Nail
Code Alarm

You'll need this diode to install a Code Alarm security or remote start system in most vehicles that have a factory-installed alarm or keyless entry system. Warranty: 1 year.


Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • Door Trigger Diode interface with 5.5" wires on each end (5 wires on one end and 1 wire on the other)
  • Installation instructions

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.


Overview: The Code Alarm Door Trigger Diode Interface (DTDI1) can be used to connect the individual door ajar wires (-) in the vehicle to the door trigger input (-) of the alarm system.

Review this product
Great Gear Giveaway rewards card

Submit a review and you will be entered to win a $150 gift card

Crutchfield Great Gear Giveaway Official Sweepstakes Rules

Code Alarm Door Trigger Diode Interface Reviews

Average Customer Review:

2 people say:

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left
Filter by rating:
5 out of 5

Door Trigger Diode

Written By hawaiiguy, Honolulu on Wednesday, June 19, 2013
Crutchfield Customer Review (What's this?)
First time to purchase on this site and I was amazed for the fast and good service. The item has a good quality and was properly insulated. I used it on my underglow project for my car and it works well. I will buy again on this company in the future.
Was this review helpful?    Yes | No
3 out of 5


Written By Barry S, Harleysville, PA on Tuesday, February 26, 2013
Crutchfield Customer Review (What's this?)
Didn't need these.
Was this review helpful?    Yes | No

For a more in-depth review and enhanced detailed information on the Code Alarm Door Trigger Diode Interface, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_220DTDI1/Code-Alarm-Door-Trigger-Diode-Interface.html ).