Ford F350 1999 superduty diesel wiring in

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=66577
Printed Date: July 21, 2025 at 10:42 AM

Topic: Ford F350 1999 superduty diesel wiring in

Posted By: bout10
Subject: Ford F350 1999 superduty diesel wiring in
Date Posted: November 19, 2005 at 7:06 AM

installing a remote start in a f350 superduty diesel and I have the wiring diagram for a ford f350 with a gasoline engine... is it the same wire colors.... and where is the tach signal wire cause there is no coil..... and where is the wait to start wire.... thanx

Replies:

Posted By: iskidoo
Date Posted: November 19, 2005 at 9:15 AM

FORD, F SERIES SUPER DUTY, 1999, Wait to start BLACK/ pink ( - ) instrument cluster or PCM

This wire MUST be diode isolated from the instrument cluster to keep the battery from draining, see DirectFax document 1090.

Can also be located in the main harness that runs on the inside of the firewall to the left of the brake pedal.

https://directechs.com/techtips/pdfs/resources/security/directed_techtips/1090.pdf

On DIESELS the TACH wire is a WHITE/ PINK located at the PCM (Powertrain Control Module) or at the Main Harness that runs on the inside of the firewall to the left of the brake pedal.

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Steve G

Posted By: bout10
Date Posted: November 19, 2005 at 12:27 PM

thanks, but is the another wire that is a positive polarity when the light is on

Posted By: iskidoo
Date Posted: November 19, 2005 at 12:30 PM

What unit are you installing. Brand/model. You should try to use a timed wait sequence from the remote start unit or a 528T.

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Steve G