Navistar International DT 466 Diagnostic/Troubleshooting Manual page 496

492 7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
Figure 478 Cylinder 3 and 4 circuit diagram
Injector Cylinder 3
Test Point
X1–17 to X1–3
X1–17 to gnd, X1–3 to gnd > 1 kΩ
X1–18 to X1–8
X1–18 to gnd, X1–8 to gnd > 1 kΩ
Injector Cylinder 4
Test Point
X2–1 to X2–21
X2–1 to gnd, X2–21 to gnd > 1 kΩ
X2–5 to X2–22
X2–5 to gnd, X2–22 to gnd > 1 kΩ
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Spec Comment
0.7 Ω to 1.5 Ω If > 1.5 Ω, check for open or high resistance between IDM
and injector, or open injector coil.
If < 1 kΩ, check for short to ground in harness or injector
coil. Disconnect injector and retest. If > 1 kΩ, the short
is in the injector.
0.7 Ω to 1.5 Ω If > 1.5 Ω, check for open or high resistance between IDM
and injector, or open injector coil
If < 1 kΩ, check for short to ground in harness or injector
coil. Disconnect injector and retest. If > 1 kΩ, the short
is in the injector.
Spec Comment
0.7 Ω to 1.5 Ω If > 1.5 Ω, check for open or high resistance between IDM
and injector, or open injector coil
If < 1 kΩ, check for short to ground in harness or injector
coil. Disconnect injector and retest. If > 1 kΩ, the short
is in the injector.
0.7 Ω to 1.5 Ω If > 1.5 Ω, check for open or high resistance between IDM
and injector, or open injector coil
If < 1 kΩ, check for short to ground in harness or injector
coil. Disconnect injector and retest. If > 1 kΩ, the short
is in the injector.
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.