Navistar International DT 466 Diagnostic/Troubleshooting Manual page 422

418 7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
7 Motor V
8 Motor U
WARNING: To avoid serious personal injury, possible death, or damage to the engine or vehicle,
make sure the transmission is in neutral, parking brake is set, and wheels are blocked before doing
service bay diagnostics on engine or vehicle.
CAUTION: To avoid engine damage, use utmost care when:
1. Disconnecting harness from EGR actuator or EGR drive module.
2. Inserting Terminal Test Adapter probe into connector to test for specifications.
3. Connecting harness to EGR actuator or EGR drive module.
Failure to use care when disconnecting, testing, or connecting components may result in damaged or bent
connector pins.
EGR Actuator Harness Connector Voltage Checks (Disconnect harness from actuator. Connect breakout
harness. Turn the ignition switch to ON.)
Test Point Spec
1 to gnd 8 V to 11 V
2 to gnd 5 V ± 0.5 V
3 to gnd 5 V ± 0.5 V
4 to gnd 5 V ± 0.5 V
5 to gnd 0 V
6 to gnd 0 V
7 to gnd 0 V
8 to gnd 0 V
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
7 Motor
V
8 Motor
W
Comment
If not in spec, check for an open, short to ground or short to voltage
source.
If not in spec, check for an open, short to ground or short to voltage
source.
If not in spec, check for an open, short to ground or short to voltage
source.
If not in spec, check for an open, short to ground or short to voltage
source.
If not in spec, check for a short to voltage source.
If not in spec, check for a short to voltage source.
If not in spec, check for a short to voltage source.
If not in spec, check for a short to voltage source.
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
15 Position sensor W
16 Position sensor ground