
174
KENR6933
Troubleshooting Section
i02661788
Starting Aid (Glow Plug) Relay
Circuit - Test
System Operation Description:
Use this procedure if another test procedure has
directed you here.
Use this procedure for the following diagnostic codes:
•
2246-06 Glow Plug Start Aid Relay Current above
normal
The following background information is related
to this procedure:
The starting aid is used to improve the engine starting
when the engine is cold. With the keyswitch in the
ON position, the engine Electronic Control Module
(ECM) will monitor the coolant temperature and the
intake manifold air temperature in order to decide
if the glow plugs are required to be switched ON. If
the glow plugs are required, then the ECM activates
the starting aid relay for a controlled period of time.
While the glow plug start aid relay is energized the
glow plug start aid relay will switch power to the glow
plugs. If a “Wait To Start” lamp is installed, the lamp
will be illuminated in order to indicate the “Wait To
Start” period.
“Wait to Start/Start Aid Active Lamp”
This feature may be included as an option.
On a cold start, when the ECM decides that it is
necessary for the glow plugs to be activated prior
to starting, a lamp output will indicate that the
operator needs to “Wait to Start”. It is possible that
starting aids may be used during the cranking of the
engine. Starting aids may be used if the engine has
previously been started. The “Wait to Start” lamp will
not be active in these conditions.
Electronic Service Tool
The electronic service tool includes the test “Glow
Plug Start Aid Override Test”. The “Glow Plug Start
Aid Override Test” will assist the analysis of the cold
starting aid.
Overview of the Glow Plug Start Aid Override Test
This glow plug start aid override test switches on the
cold starting aid when the engine is not running. The
glow plug start aid override test aids the analysis of
the circuit for the glow plug start aid relay.
Содержание 1106C Genset
Страница 1: ...May 2007 Troubleshooting 1106C Genset PK Engine KENR6933 00 ...
Страница 19: ...KENR6933 19 Troubleshooting Section g01178875 Illustration 6 ...
Страница 119: ...KENR6933 119 Troubleshooting Section g01244183 Illustration 31 Schematic of the bypass harness connector ...
Страница 186: ...186 KENR6933 Index Section ...
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Страница 188: ...Copyright 2007 Perkins Engines Company Limited All Rights Reserved Printed in U K ...