7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS 429
Figure 446 Continuous Monitor Test
2. To monitor signal voltage, run KOEO Continuous
Monitor Test. For help, see “Continuous Monitor
Test” in Section 3 (page 68).
3. Monitor EOP signal voltage. Verify an active DTC
for the EOP circuit.
4. Ifcodeisactive,dostep6and7tocheckcircuit
for the EOP sensor using the following table.
• Circuit Checks for EO P Sensor
5. If code is inactive, wiggle connectors and wires
at all suspected problem locations. If circuit
continuity is inte rrup ted, the EST will display
DTCs related to the condition.
6. Disconnect engine harness from pressure sensor.
NOTE: Inspect connectors for damaged pins,
corrosion, or loose pins. Repair if necessary.
7. Connect Pressure Sensor Breakout Harness to
engine harness only.
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.
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