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