Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 183
switch OFF until the engine exhaust temperature has dropped below a
defined threshold. The DES indicator will illuminate whilst the DES cool down
procedure is active. Further information regarding the DES procedure and
operation can be found in section 16.0 of this document.
13.3.11.2 DES Indicator Configuration
There are no configuration requirements relating specifically to the DES
indicator however the DES feature must be enabled for the indicator to
operate
13.3.11.3 DES Indicator Installation
Function
PGN
SPN / Byte
Start bit
Length
Applicable States
Engine
Cooldown In
Operation
64914 3543 1.1 4 bits 0101 – Cool down
Note: General Hardwired Indicator Lamp Requirements
Where the engine controller is used to directly control the various
engine warning lamps, it is recommended that Light Emitting Diode-type
lamps are used in all cases. Many generic LED lamp assemblies
incorporate a resistor in parallel with the LED; LED lamp assemblies
with a parallel resistance value of less than 5kΩ should not be used.
Where incandescent bulb-type lamps are used, it is required that a
MUR460-type diode (or equivalent) is fitted in series between the
incandescent lamp and the corresponding ECM pin. Where the engine
controller communicates a warning lamp status to a display via CAN,
and does not drive the warning lamps directly, these requirements may
be waived.
14.0 Engine & Aftertreatment Monitoring System
The engine control system is designed to monitor each engine and
aftertreatment sensor / actuator and react to system critical or emissions
critical failures. When a system error occurs such as high engine coolant
temperature the engine monitoring system reacts by raising the appropriate
engine diagnostic level and in some cases forces the engine into a derate
condition or controlled shutdown.
It is recognized that for some applications a control system induced engine
shutdown or derate could cause safety concerns or auxiliary equipment
damage and for these reasons the engine response can be configured.