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PACCAR MX (2004 Emissions) Fault Code: P156E Vehicle Speed Sensor - Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B12)

PACCAR MX (2004 Emissions) Fault Code: P156F Vehicle Speed Sensor - Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (B12)

PACCAR MX (2004 Emissions) Fault Code: P160A PCI ECU - Internal Error

PACCAR MX (2004 Emissions) Fault Code: P0168 Fuel Temperature - Data Valid but Too High, Most Severe

PACCAR MX (2004 Emissions) Fault Code: P170A Lambda - Data Valid but Too Low, Most Severe

PACCAR MX (2004 Emissions) Fault Code: P170C NOx Sensor before Catalyst Response - Data Erratic, Intermittent or Incorrect, During Overrun

PACCAR MX (2004 Emissions) Fault Code: P170B Lambda - Data Valid but Too High, Most Severe

PACCAR MX (2004 Emissions) Fault Code: P170D NOx Sensor Before Catalyst Response - Incorrect

PACCAR MX (2004 Emissions) Fault Code: P170F NOx Concentration Before Catalyst - Data Valid but Too High During Overrun

PACCAR MX (2004 Emissions) Fault Code: P170E NOx Sensor Before Catalyst Response - Incorrect