GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 5E-59
Chart A-1 (3 of 4): No Malfunction Indicator Lamp (MIL) -(MDTC) Tool Installed
Step
Action Value
(s)
Yes No
1
Was the “On-Board Diagnostic” (OBD)
System Check Performed?
-
Go to Step
2
Go to OBD
System Check
2
Attempt to start the engine.
Does The Engine Start?
-
Go to Step 3 Go to Step
6
3
1. Remove Marine Diagnostic Trouble
Code (MDTC) tool.
2. Ignition “ON,” engine “OFF.”
3. Using a test light connected to
ground (–), probe terminal “F” of the
DLC.
Does The Test Light Illuminate
Brightly?
-
Go to Step
4 Go to
Step
10
4
Using a test light connected to battery
positive (B+), probe terminal “E” of the
DLC.
Does The Test Light Illuminate
Brightly?
-
Go to Step
11
Go to Step
5
5
1. Ignition “OFF.”
2. Disconnect ECM “J2” connector.
3. Using a DVOM, measure the resis-
tance between ECM harness con-
nector terminal “J2-31” and DLC
terminal “E.”
Is The Resistance Within The
Specified Values?
0
ohms
Go to Step
17
Go to Step
13
6
Check the ECM fuse.
Is The Fuse Good?
-
Go to Step
7 Go to Step
14
7
1. Ignition “OFF.”
2. Disconnect the ECM connectors.
3. Using a test light connected to
ground, probe ECM harness con-
nector pins “J1-16” and “J1-32.”
Does The Test Light Illuminate
Brightly On Both Circuits?
-
Go to Step
8 Go to Step 15
8
1. Ignition “ON,” engine “0FF.”
2. Using a test light connected to
ground (–), probe ECM harness
connector pin “J1-11.”
Does The Test Light Illuminate
Brightly?
-
Go to Step
12
Go to Step 9
9
Check the INJ/ECM fuse.
Is The Fuse Good?
_-
Go to
Chart
A-6
Go to Step 16
Downloaded from https://needmanual.com/!
To Next Page
Loading...
Need help?
General