Navistar International DT 466 Diagnostic/Troubleshooting Manual page 470

466 7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
C to gnd cable > 500 Ω
Harness Resistance Checks (Connect breakout box [X1] to engine harness only. Connect VC Gasket
Breakout Harness to engine harness only.)
X1–20 to A < 5 Ω
X1–14 to B < 5 Ω
X1–6 to C < 5 Ω
1
Connector 9260 is a 2-wire connector usually in the battery box. Pin A is the chassis ground connection for the ECM
and IDM. See truck Chassis Electrical Circuit Diagram Manual for complete chassis side ECM and IDM ground circuit
information.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
If < 500 Ω, check for short to ground.
If > 5 Ω, check for open ICP signal.
If > 5 Ω, check for open V
If > 5 Ω, check for open ground.
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
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