Mercury MerCruiser D2.8L D-Tronic Service Manual page 640

EDI DIAGNOSIS
Display Terminology (Continued)
Related to
Scan Tool
P1230
P1230
P1515
P1515
P1515
P1515
P1605
Page 5E-72
Displayed Extended Information
As Shown On Scan Tool
Code
POSITIVE GOVERNOR DEVIATION
NEGATIVE GOVERNOR DEVIATION
PWG PLAUSIBILITY WITH LGS
PWG PLAUSIBILITY WITH
POTENTIOMETER
PWG PLAUSIBILITY WITH BRE
PWG PLAUSIBILITY GENERAL
PLAUSIBILITY AFTER START-UP
SERVICE MANUAL NUMBER 22
Explanation / Possible
Cause
Control of injection timing is
occurring at a greater
frequency than the
programmed control values.
Check the instrumented
injector circuit and injection
pump.
Control of injection timing is
occurring at a lesser
frequency than the
programmed control values.
Check the instrumented
injector circuit and injection
pump.
A fault has been indicated in
the TP sensor, most likely in
the low idle switch circuit.
Check these circuits.
A fault has been indicated in
the TP sensor, most likely in
the TP sensor circuit. Check
these circuits.
Not applicable to marine EDI.
Should not appear during
testing.
A fault has been indicated
between the TP sensor and/or
low idle switch signals. Check
these circuits.
A fault has been indicated in
the key switched12 volt power
supply (terminal 15). Check
battery connections, key
switch and/or wiring to and
from the switch.
90-860074--1 FEBRUARY 2002