Detroit Diesel Series 60 EGR Technician Manual page 117

SERIES 60 EGR TECHNICIAN'S MANUAL
The DDEC V ECU has two 68-pin Tyco connectors; one for the engine and the other for the
vehicle. There are two data links on the Vehicle Interface Harness (VIH). One link is based
on SAE J1708 and the second is SAE J1939. The engine harness, is Controller Area Network
(CAN) based and will be used for proprietary communications such as multi-ECU applications
and DDC factory programming. See Figure B-3 for the Engine Harness and see Figure B-4
for the Vehicle Interface Harness.
Turbocharger Compressor Inlet Temperature Sensor
The Turbocharger Compressor Inlet Temperature Sensor (TCI) sensor is installed by the OEM
within piping between the air filter and the turbocharger inlet. The TCI sensor along with other
DDEC sensors are monitored by the ECU as a means of fuel management during normal operation.
The TCI sensor is supplied a 5-volt signal from the ECU and returns a voltage signal to the ECU
relative to turbocharger compressor air inlet temperature. As return voltage decreases the air
inlet temperature voltage increases. The TCI operating values during normal engine operation
are 0.10-5.0 V.
8-17
All information subject to change without notice. (Rev. June 2005)
7SE60 0506 Copyright © 2005 DETROIT DIESEL CORPORATION