Navistar International DT 466 Diagnostic/Troubleshooting Manual page 535

7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
• If < B+, the concern is with engine harness or ECM, check
for a short to ground or open VGT actuator control. Do the
Actuator Control Voltage Check at ECM (page 534) and
Harness Resistance Checks (page 537).
• If equal to B+, the concern is either high resistance in wiring
or the VGT actuator. Do Harness Resistance Checks (page
537) to confirm integrity of wiring. See Chassis Electrical
Circuit Diagram Manual needs to be referenced to check
wiring from BAT
If integrity of wiring is confirmed to be in good condition,
replace VGT actuator.
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
to 12 - Pin Connector.
GND
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