5 HARD START AND NO START DIAGNOSTICS 199
4. Select Diagnostics from the menu bar.
5. Select Key-On Engine-Off Tests from the drop
down menu.
NOTE: When using the EST to do KOEO or KOER
diagnostic tests, Standard Test is always selected
and run first. If the ignition switch is not cycled, the
Standard Test does not have to be run again.
6. From the KOEO Diagnostics menu, select Glow
Plug/Inlet Air Heater, then select Run to start the
test.
7. Use the DMM to measure voltage.
8. Record results on Diagnostic Form.
• If voltage is B+, do 15.3 Element Terminal
Continuity.
• If voltage is not B+, do 15.4 - Wiring Harness
Continuity and Resistance.
15.3 – Element Terminal Continuity
WARNING: To avoid serious personal injury,
possible death, or damage to the engine or
vehicle, read all safety instructions in the
“Safety
Information” section of this manual.
When the voltage at element is B+, check t
he
continuity of the element terminal to gr
ound.
1. Turn the ignition switch to OFF.
2. Use DMM to check resistance.
Figure 254 Element terminal
3. Connect DMM positive lead to the element
terminal that is not to specification.
Figure 255 Ground terminal (left side of
crankcase)
4. Connect DMM negative lead to the ground
terminal.
5. Record results on Diagnostic F orm.
• If the element does not have continuity to
ground, replace the element.
• If the element has continuity, verify the
previous Inlet Air Heater test.
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
©August 2008 Navistar, Inc.
To Next Page
Loading...
Need help?
General