Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID

SERVICE MANUAL NUMBER 24

DIAGNOSTICS

Chart A-6 (2 of 2): EFI System/Ignition Relay Check

Step

Action

Yes

PROCEED TO

Was the “On-Board Diagnostic” (OBD) System Check

Performed?

Step 2.

OBD

a. Ignition OFF.

b. Remove EFI system relay connector.

c. Ignition ON.

Step 3. Step 5.

Step 4. Step 6.

d. With test light still connected to ground, probe relay har-

ness connector terminals “86” and “30.”

Does Test Light Illuminate On Both Terminals?

Using test light connected to battery positive (B+), probe

relay harness connector terminal “85.”

Does Test Light Illuminate?

Check relay connector for poor contact or corrosion. If OK,

replace faulty EFI system relay.

Verify

–

Locate and repair open or short to ground in circuit that did

not light (CKT 2 and/or CKT 3).

Repair

Locate and repair open ground CKT 150.

Index

90-861327--1

OCTOBER 1999

Page 5G-37

Product Specification

Categories	Mercury MerCruiser Manuals
Tags	Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID
Model Year	1998, 1999, 2000, 2001
Download File	Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step. - 895 pages
Document File Type	PDF
Copyright	Attribution Non-commercial

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Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID SKU UPC Model

Fernando Woll on Dec 09, 2014. Boat Engine

Great performance engine.
Class 1