Group 28
Specifications
Connec-
tion
Signal type
Measuring points
Ignition key in the ON position
Other
EA16
Not currently used
EA17
Not currently used
EA18
Engine position sensor (cam), -
EA19
Not currently used
EA20
Not currently used
EA21
Not currently used
EA22
Unit injector cylinder 2, -
EA23
Unit injector cylinder 3, -
EA24
Unit injector cylinder 4, 5, 6 (90
Volt), +
EA25
Coolant temperature sensor, signal
EA25 / EA5
3.0 V (+20
C/68
F)
0.6 V (+85
C/185
F)
EA26
Not currently used
EA27
Fuel pressure sensor
D12 C
EA28
Not currently used
EA29
Not currently used
EA30
Engine speed sensor (crank), +
EA31
Engine speed sensor (crank), -
EA32
Not currently used
EA33
VCB, -
EA33 / alternate
ground
B+ (VCB off)
0 V (VCB on)
Normally OFF with
the ignition key in the
ON position.
EA34
Unit injector cylinder 4, -
EA35
Unit injector cylinder 5, -
EA36
Unit injector cylinder 6, -
EB1
SAE J1939 Communications link,
can HI
EB1/EB9
≈
2-5V
EB2
SAE J1939 Communications link,
can LOW
EB2/EB9
≈
0-3V
EB3
Ambient air temperature sensor, sig-
nal
EB3 / EB13
2.6 V (+20
C/68
F)
1.2 V (+50
C/122
F)
EB4
Buffered idle validation switch
EB4 / EB9
< 4 V (inactive)
> 8 V (active)
EB5
Pre-heat sense 1 (if equipped)
EB5 / EB9
55% of B+ (open)
0 V (closed)
Normally closed with
the ignition key in the
ON position.
EB6
Not currently used
EB7
Coolant level sensor, signal
EB7 / EB8
80% B+ (open)
0 V (closed)
VN and VHD. Nor-
mally open with the
ignition key in the ON
position.
EB8
Sensor ground
EB9
EECU ground, -
EB10
EECU ground, -
17
Summary of Contents for TSI
Page 1: ......
Page 8: ...6...
Page 30: ...Group 28 Specifications Schematic D12B W2002827 28...
Page 31: ...Group 28 Specifications Schematic D12C W2003348 29...
Page 32: ...Group 28 Specifications Schematic D7C W2002826 30...
Page 33: ...Group 28 Specifications Schematic VECU W3003497 31...
Page 34: ...32...
Page 86: ...84...
Page 96: ...Group 28 Troubleshooting 94...
Page 110: ...Group 28 Troubleshooting Fuel Pressure Sensor Pres sure Voltage Chart W2002799 108...
Page 114: ...Group 28 Troubleshooting Oil Pressure Sensor Pres sure Voltage Chart W2002732 112...
Page 118: ...Group 28 Troubleshooting Boost Pressure Sensor Pres sure Voltage Chart W2002730 116...
Page 129: ...Group 28 Troubleshooting Coolant Temperature Sensor Tem perature Resistance Chart W2002729 127...
Page 140: ...Group 28 Troubleshooting Fuel Temperature Sensor Tempera ture Resistance Chart W2002742 138...
Page 144: ...Group 28 Troubleshooting Oil Temperature Sensor Tempera ture Resistance Chart W2002727 142...
Page 248: ......
Page 249: ...Operation Numbers 2841 03 02 01 Engine ECU Replacement 243...