Sae J1939 Data Link; Vss Anti-Tamper - Detroit Diesel DDEC VI Application And Installation

SAE J1939 Data Link

A VSS wired to the CPC is not required if the transmission output shaft speed message is being
transmitted over the SAE J1939 Data Link. To obtain accurate vehicle mileage, the parameters
listed in Table 3-109 must be programmed with VEPS.
Parameter
Group
8 Vehicle Speed Sensor
8
8 Tire Revs per Unit Distance
8 Top Gear Ratio
8 Second Highest Gear Ratio
Two Spd Axle Second
8
8
Table 3-109 Vehicle Speed Sensor Parameters for J1939 Option

VSS Anti-tamper

If the sensor appears to be working improperly, but the vehicle speed is not zero, VSS
Anti-Tamper will log a VSS fault.
All information subject to change without notice. (Rev. 01/07)
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION
DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
Parameter
2 = Square Wave (Hall Sensor)
Axle Ratio
Axle Ratio
1 = Enable VSS ABS Anti Tampering
Anti Tamper
2 = Enable VSS without ABS Anti
Range
0 = No Sensor
1 = C3 Sensor
3 = J1939 (ECT1)
4 = Magnetic Pickup
5 = J1939 (TCO1)
6 = J1939 (CCVS Source 1)
7 = J1939 (CCVS Source 2)
8 = J1939 (CCVS Source 3)
1 – 20.0
160 – 1599 l/km
0.1 – 2.55
0 — 5.75
1 – 20.0
0 = Disable
Function
Tampering Function
Default
4 = Magnetic
5.29
312
1
2.54
5.29
0 = Disable
3-105