Troubleshooting

RENR2696-01 89
Troubleshooting Section
i01983749
E100 Low Engine Oil Pressure
Warning
Conditions Wh
ich Generate This Code:
g01028820
Illustration 17
Oil pressure map for the 1104E engine
g01028718
Illustration 18
Oil pressure map for the 1106E engine
The Electronic Control Module (ECM) detects the
following conditions:
•
The engine has been running for at least 5
seconds.
•
The engine speed is at least 350 rpm.
•
Engine oil pressure is lower than the threshold for
low oil pressure for more than 2 seconds.
•
100-03 “Engine Oil Pressure open/short to +batt” is
not active.
•
100-04 “Engine Oil Pressure short to ground” is
not active.
•
100-10 Engine Oil Pressure Sensor abnormal rate
of change is not active.
System Response:
The ECM will log the event. The ECM wi ll reset the
warning when the oil pressure rises 21 kPa (3 psi)
above the thre
shold for at least four seconds.
Possible Pe rformance Effect:
•
None
Troubleshoot
ing:
•
There may be a problem with the engine lubrication
system.
•
Theremaybeaproblemwiththeengineoil
pressure sens
or.
Test Step 1. Check for Active Diagnostic
Codes.
A. Start the electronic service tool.
B. Turn the main
power to the ON position.
C. Check for any Active Diagnostic Codes or Logged
Diagnostic C
odes.
Expected Result:
There should be no diagnostic codes that are present.
Results:
•
OK –Therearenodiagnosticcodesthatare
present. Pr
oceed to test step 2.
•
Not OK – There are diagnostic codes that are
present.
Repair: Repair the diagnostic codes that are
present. Re
fer to the appropriate topic in the
“Troubleshooting With a Diagnostic Code” section
of this manual. Ensure that the repair eliminates
the proble
m.
STOP.
Test Step 2. Perform a Chec k of the
Engine Lubrication System.
A. Perform a c
heck of the engine lubrication
system. Refer to the diagnostic procedure
Troubleshooting, “Low Engine Oil Pressure”.
Expected Result:
There sho
uld be no problems with engine oil
pressure.