Navistar International DT 466 Diagnostic/Troubleshooting Manual page 490

486 7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
CAUTION: To avoid engine damage, turn the ignition switch to OFF before disconnecting the connector relay
for the IDM. Failure to turn the ignition switch to OFF will cause a voltage spike and damage to electrical
components.
Harness Resistance Checks – IDM to IDM Chassis Ground (Turn the ignition switch to OFF. Disconnect
chassis connector 9260
the Terminal Test Adapter Kit to test.)
Test Point
IDM X3–1 to Pin A
(9260)
IDM X3–2 to Pin A
(9260)
IDM X3–3 to Pin A
(9260)
IDM X3–22 to Pin A
(9260)
IDM X3–26 to Pin A
(9260)
IDM X3–4 to Pin A
(9260)
IDM X3–23 to Pin A
(9260)
IDM X3–24 to Pin A
(9260)
IDM X3–25 to Pin A
(9260)
IDM X3–8 to Pin A
(9260)
IDM X3–27 to Pin A
(9260)
IDM X3–7 to Pin A
(9260)
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
1
and IDM X3 harness. IDM harness connector end is numbered at mating end. Use
Spec Comment
< 5 Ω If > 5 Ω, check connection to battery ground. See truckChassis
Electrical Circuit Diagram Manual for circuit numbers, connector
and fuse locations.
< 5 Ω If > 5 Ω, check connection to battery ground. See truckChassis
Electrical Circuit Diagram Manual for circuit numbers, connector
and fuse locations.
< 5 Ω If > 5 Ω, check connection to battery ground. See truckChassis
Electrical Circuit Diagram Manual for circuit numbers, connector
and fuse locations.
< 5 Ω If > 5 Ω, check connection to battery ground. See truckChassis
Electrical Circuit Diagram Manual for circuit numbers, connector
and fuse locations.
< 5 Ω If > 5 Ω, check connection to battery ground. See truckChassis
Electrical Circuit Diagram Manual for circuit numbers, connector
and fuse locations.
> 900 Ω If < 900 Ω, check for short to ground within wiring harness.
> 900 Ω If < 900 Ω, check for short to ground within wiring harness.
> 900 Ω If < 900 Ω, check for short to ground within wiring harness.
> 900 Ω If < 900 Ω, check for short to ground within wiring harness.
> 900 Ω If < 900 Ω, check for short to ground within wiring harness.
> 900 Ω If < 900 Ω, check for short to ground within wiring harness.
> 900 Ω If < 900 Ω, check for short to ground within wiring harness.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
EGES-270-1