Thermo King SR-2 SmartReefer2, Diagnostic Manual

Page: 31 / 431

Section 2 – SR-2 Hardware Description
J27
This jumper is the CAN bus terminator. It should be
left in the position shown.
J101 Cold Start Jumper
Jumper J101 performs a microprocessor cold start
to reset the microprocessor to default settings. To
perform a cold start, turn the unit off and place the
Microprocessor Power Switch on the side of the
control box in the off position. Move the J101 pin
jumper from the center and top pins to the cold start
position on the center and bottom pins. Place the
Microprocessor Power Switch in the on position and
turn the unit on by pressing the HMI Control Panel
On key. A cold start has been performed and all
sensor grades and unit programmable feature
settings have been returned to the default setting.
Alarm Code 74 will be set to indicate that the
controller has been reset.
After the cold start has been performed, reverse the
process and place the J101 jumper back in the
normal position on the center and top pins. Failure
to do so will result in a cold start every time the unit
is turned on. See Service Procedure A07A
Performing a Cold Start for additional details.
J102
Not Used
J103
Not Used
2-15
31 January 2005