Sensor Codes; Barometric Pressure Sensor; Relative Humidity Sensor; Coolant Temperature Sensor - Detroit Diesel Series 60 EGR Technician Manual

SERIES 60 EGR TECHNICIAN'S MANUAL

Sensor Codes

Specific sensor failures and the system response are listed below:

Barometric Pressure Sensor

Failure Modes: PID 108, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the engine will be forced into boost mode. The
turbocharger vane position will be forced open at idle to reduce turbocharger response.
Turbo Boost Pressure Sensor
Failure Modes: PID 102, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the system will be forced into boost mode. The
turbocharger vane position will be set to a calibrated value to protect the engine and will be
torque limited during this fault.
Intake Manifold Temperature Sensor
Failure Modes: PID 105, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the temperature will be set to a fixed value.
Turbo Compressor Outlet Temperature Sensor
Failure Modes: PID 404, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the engine will be torque limited to protect the
turbocharger and charge air cooler.
EGR Delta-Pressure Sensor
Failure Modes: PID 411, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the system will be forced into boost mode. The
engine will be torque limited during this fault.
EGR Temperature Sensor
Failure Modes: PID 412, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the temperature will be set to a fixed value.
Turbo Compressor Inlet Temperature Sensor
Failure Modes: PID 351, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the temperature will be set to a fixed value.

Relative Humidity Sensor

Failure Modes: PID 354, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the sensor will be set to a fixed value.

Coolant Temperature Sensor

Failure Modes: PID 110, FMI 3 - Voltage High and FMI 4 - Voltage Low
Response: The CEL will be illuminated and the temperature will be set to a fixed value.
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All information subject to change without notice. (Rev. June 2005)
7SE60 0506 Copyright © 2005 DETROIT DIESEL CORPORATION