Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 200
15.0 Monitored Inputs For Customer Fitted Sensors
This section covers the optional switches and sensors available for the
customer to install / connect. Some of the switches and sensors require the
customer to both install them and provide the wiring harness connection to the
engine ECM. Others are factory fitted and require the customer to provide a
connection to the ECM only. It should also be noted that not all switches and
sensors are available across the product range, these components are
highlighted in table 15.1.
Component
Engine
Range
Part No
Customer Fit
Component
Type
Air Intake
Restriction
All T400039 Yes Switch
Engine Coolant
Level
All T400042 Yes Switch
Water In Fuel All
(Mandatory)
Supplied No Mandatory Switch
Auxiliary
Temperature
All T400032 Yes Passive Sensor
Auxiliary Pressure All T400040 Yes Active Sensor
Table 15.1 Customer Installation Monitored Inputs
Each switch / sensor can be individually configured to provide the desired
level of monitoring via the standard monitoring system parameters as
described in section 13. It should be noted that not all sensors and switches
offer all 3 severity levels of monitoring as shown in table 15.2.
Component
Input
State
De bounce
Time (secs)
Severity Level
Support
J1 Pin
Assignment
L1
L2
L3
Air Intake
Restriction
SW
Batt+
Normally
Open
30 Yes Yes No J1-78
Engine
Coolant Level
Low
SWG Normally
Closed
30 Yes No Yes J1-60
Water in Fuel
Active
Analog
Normally
Open
30 Yes No No J1-76
Auxiliary
Temp
Passive
Analog
N/A Configurable 1
to 120sec
Yes Yes Yes J1-33
Auxiliary
Pressure
Active
Analog
N/A Configurable 1
to 120sec
Yes Yes Yes J1-61
Table 15.2 Monitored Inputs Detailed Support
15.1 Air Filter Service Indicator – Air Intake Restriction Switch
15.1.1 Air Intake Restriction Switch Operation
The air filter restriction switch indicates that the air intake circuit is restricted.
The switch is installed or piped to the air filter housing or air induction pipe so
that it is monitoring clean air (between the air filter and the engine). A
normally closed Air filter restriction switch is available within the Perkins parts
system for order where required. To enable the use of third party components