Navistar International DT 466 Diagnostic/Troubleshooting Manual page 277

9. Memorize DMM voltage for BCP. After parking
vehicle, record reading on Diagnostic Form; do
not record reading while driving.
• If BCP signal voltage is more than KOEO
BCP signal voltage, when engine brake is
inactive, diagnose BCP sensor, circuit, and
engine brake components. The BCP voltage
reading should be zero psi; however, BCP
values may fluctuate as much as 345 kPa
(50 psi). Electromagnetic Interference (EMI)
or ground shift can cause an insignificant
voltage shift that does not indicate a problem.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
6 PERFORMANCE DIAGNOSTICS
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
• If BCP signal voltage is equal to KOEO BCP
signal voltage, there is no problem with the
BCP sensor signal or the engine brake.
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