Temp-A-Start 2014
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Installation Guide Engine Only Sec 1
 System Check Out & Fixes Sec 2
Please call our 24/7
Technical Support Line
If you have questions
not addressed within this
presentation.
309-472-0676
Introduction
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Anyone using a service procedure or tool not recommended in this
tutorial must first satisfy himself thoroughly that neither his
safety nor vehicle safety will be jeopardized by the tool/procedure
he selects. Individuals deviating in any manner from the
instructions provided assume all risks of consequential personal
injury or damage to person or equipment involved. Also note that
particular procedures may require the use of a special tool(s)
designed for a specific purpose. These special tools must be used
in the manner described, whenever specified in the instructions.
Before starting a vehicle always be seated in the driver’s seat, place the
transmission in Neutral, be sure that parking brakes are set.
• Before working on a vehicle, place the transmission in Neutral, set the
parking brakes, and block the wheels.
• Before starting your install disconnect the batteries power.
This Presentation Will Cover The
Following Areas
Of The Temp-A-Start System
System Overview & Installation
Features, specifications, & interfacing of system
Engine Mode Operation
Quick Testing For Engine Mode Diagnostic &
Testing Procedures
System Overview
• TAS is an automatic start stop system
• Keeps the engine in a ready to go state at all
times
• Reduces engine wear
• Increases miles between oil changes
• Provides auto control for recommended high
idle RPM
• Prevents dead batteries
• Extends battery & starter life
INSTALL OUT LINE
1.
Unpack your system & in speck all components & wiring.
2.
Check wire color at each side of a connector to insure that they
match.
3.
Give your machine a good look over to in sure that it is in good
working order before you start your install.
4.
Some things you may want to make a note of before you start.
A. Normal cranking time to start.
B. Is there a fast idle option on machine & is it working ?
C. Can this machine be started in gear?
5.
Next on the engine locate a port for your oil temp sender.
6.
Look inside the cabin for a good location to mount you main control
center.
7.
Decide where you will run your wiring harness & separate wires
running to different locations.
TAS Direct Interface Overview
To Electrical System
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The following components interface directly
to the vehicle electrical system.
TAS Main Control module
Master control relay for ign. Switch if used
& (2) relays inside the TAS control unit
There are (3) Interface Control Relays
3 relays are controlled by TAS and they are:
One: external Master Relay-controlling battery power to
the key switch.
Two Internal Relays located in TAS main control center.
One TAS Internal relay controls the ignition key signal
to the engine ECM. In normal vehicle use the key signal
from the ignition switch passes through this relay which
is normally closed.
Internal relay two provides a 12v or 24v signal for cranking.
Functions of Relays during Engine Mode
Operation
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Master Relay & all Power accessory Relays are turned off
approx. two minutes after TAS has been activated. The engine
continues to run until all engine mode parameters are met.
The internal TAS relay controlling the ignition key signal
remains active until all parameters are met. The engine then
returns to base idle for 8 sec.before shut down and the TAS
system will be on stand-by waiting for a start to be called.
When a start is called the start alarm is sounded. After the
alarm the starter output relay in TAS provides the crank signal.
After the engine is started the only relay remaining active in the
TAS control module is the ignition control relay
System Components
Main Control Module (MCM)
The Temp-A-Start system is currently
designed for operation with ALL types of
DIESEL ENGINES.
The MAIN CONTROL MODULE (MCM) is the
heart of the TEMP-A-START system. It accepts
inputs from the various sensors located
throughout the vehicle and interfaces with
the electronic controls of your engine.
Suggested Locations
In or under dash, in the tool storage area or under the
bunk. This location will vary from tractor to tractor,
depending on space available.
MCM Continued
System Components
Step 1
Step 2
Most tractors & machines
will have a place in the
dash, under it or in a
toolbox or storage area.
Next, attach the MCM to
the machine using the
screws and L-shaped
brackets supplied in the
Kit
If a location such as the
ones listed above are not
available, securely install
the MCM in a protected
location where it cant be
easily kicked or damaged
Step 3
Connect the main wiring
harness to the MCM
connector using a 7MM
driver.
Check to make sure that
the main wiring harness
and MCM connector
bundle have not come into
contact with sharp metal
edges that could chafe/cut
the wires or insulation.
Check the color of each
wire on the control center
side to see if it is a match
on the other side of the
connector.
System Components
Alarm Buzzer
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The engine compartment ALARM
provides an audible alarm 15 seconds
before the engine starts, when the
Driver Comfort Control System is in
ENGINE MODE.
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Suggested Location and Installation
Anywhere on the engine compartment
firewall is an acceptable location for
installation.
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Secure the alarm to the firewall of the
truck, using silicone adhesive or wire
ties. Route the remaining cable to the
MCM location where it will be
connected later in the installation
process.
System Components
LED Dashboard Display
Yellow Dash Sticker
Included in Kit
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The indicator LED
on the dashboard
DISPLAY is a two
color LED that
indicates the status
of the Driver
Comfort Control
System . A GREEN
LED indicates the
system is ON, a
RED LED indicates
the truck is in
Neutral & system is
off.
Step 1
• Find an open area on your vehicle's
instrument panel and apply the sticker
shown above. Use a 1/2" drill bit to drill a
hole for the DASHBOARD SWITCH and
a 9/32" drill bit for the LED hole.
System Components
LED Dashboard Display cont.
Step 2
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From the backside of the instrument
panel, push the switch through the
drilled hole. From the front side of the
panel, insert the LED. Tighten both
components into place accordingly.
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Insert the green lead from the LED
DISPLAY into the green wire of the
DASHBOARD Switch's plastic
connector. Finish this step by
connecting red to red and black to
black at the connector from TAS.
Step 3
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The switch and LED should appear
as shown in the image to the right
when installation is complete.
NOTE: This switch is used to
turn the Control System on
and off.
System Components
Main Wiring Harness
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This bundle of wires and
connectors comprise the
MAIN WIRING
HARNESS .
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Be sure the MAIN
WIRING HARNESS
connectors will reach the
MAIN CONTROL
MODULE without
straining the harness and
that ample space is
available to mate the
connectors.
NOTE: Harness routing may have to be
modified in some applications due to
unforeseen circumstances, customer
modifications and the like. Be certain to
follow good engineering and workmanship
practices. DO NOT COIL EXCESS WIRING,
TRIM EXCESS AWAY.
System Components
Neutral Safety Switch
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This is the only part
required for a standard
installation
NOT supplied by TempA-Start in the
installation kit. Due to
the large
number of varied switch
sizes it is the installing
Technician’s
responsibility using
the truck Vehicle
However, for your convenience, we are
Identification Number
including an installation section for this item,
(VIN#) to acquire the
click to continue.
proper switch
for their application.
System Components
Neutral Safety Switch cont.
The NEUTRAL SAFETY
SWITCH verifies that the
tractor transmission is in
neutral and will disable the
Driver Comfort Control
System if a gear is detected.
Suggested Location
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Locate the plugged hole just
forward of the gear shift
lever on the top of the
transmission. This hole has
a slotted plug or a hex head
installed in it.
CAUTION: Do not confuse this hole with a
similar hole located toward the rear of the
transmission. This hole usually will have a
switch installed in it already and indicates
reverse only.
NOTE: To gain access on cabover tractors the
cab must be up. On conventional cab
tractors, access may usually be gained by
removing the boot from around the shift lever.
System Components
Neutral Safety Switch cont.
Step 1
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Brush and blow dirt
from this area using
compressed air.
Step 2
 The photo to the above right is taken from the left rear of the
tractor looking forward. The NEUTRAL SAFETY SWITCH,
hidden by the tractor's wiring, has been installed forward
and to the left of the black shift lever column.
System Components
Neutral Safety Switch cont.
Step 3
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Connect a multimeter
(set to a low ohms
setting) to the
NEUTRAL SAFETY
SWITCH leads. Verify
that the NEUTRAL
SAFETY SWITCH has a
closed circuit
(continuity) with the
transmission in neutral
and has an open circuit
(no continuity) with the
transmission in any gear.
NOTE: In rare cases the switch may not operate due to the switch
actuator not contacting the internal slide in the transmission. If this is
the case, remove the shim from the NEUTRAL SAFETY SWITCH and
recheck for reliable operation.
System Components
Oil Temperature Sensor
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The sensor will be installed in an existing
hole that has been tapped and plugged,
usually located low on the side of the
engine block in the main oil gallery.
Remove an existing plug along the side of
the engine in the oil gallery and determine
if any of the supplied adapters are
necessary
NOTE: Some CATERPILLAR engines
use metric fittings. A metric adapter is
provided for these situations. Reuse the
"O-ring" from the original plug.
Coat the threads of the adapter and sensor
with Teflon sealing compound and install
in the appropriate location.
This switch is used to confirm that the
parking brakes have been applied
on the tractor.
Suggested Location
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The PARKING BRAKE SWITCH
must be installed in an air line, or
in an available port, on the park
brake valve body. Must have
POSITIVE AIR PRESSURE with
the parking brakes released and
NO AIR PRESSURE when the
parking brake is applied.
Step 1
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Remove the instrument panel in
the cab and locate the park brake
air line, that has “ 0” psi air with
brake set & positive air pressure
when the parking brake has been
released.
System Components
Park Brake Switch
System Components
Park Brake Switch cont.
Step 2
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Splice the air line,
then install the brass
tee and PARKING
BRAKE SWITCH
using the compression
fittings and inserts.
NOTE: Always use the
metal inserts with the
compression fittings on
plastic air lines. Use
sealant on pipe thread
fittings. DO NOT OVERTIGHTEN ferrules and
nuts on plastic tubing.
System Components
Park Brake Switch cont.
Step 3
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Connect the tan
wires to each
terminal of the
switch. This
connection is not
polarity conscious.
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The tilt switch senses
when a conventional
tractor's hood is opened or
when a cab over cab is
tilted.
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This switch should be
mounted to a vertical
surface, when the hood or
cab is in the closed or
down position. It should
be installed so that when
hood or cab are open the
TILT SW is open. With
hood or cab closed the
TILT SW is closed. The
switch when tipped to
about 50% of open, causes
the circuit to open.
System Components
Hood Tilt Switch
System Components
Hood Tilt Switch cont.
Suggested Locations For Mounting Switch
Mount the TILT SWITCH to the vehicle in such a manner that the switch
will not be knocked out of adjustment easily.
 Conventional Tractors - Mount on the hood out of the way of wheel
splash that results from rain and snow or ice accumulation. Be careful to
protect the wires from damage as the hood is tilted. A recommended
location is the back of the headlight assembly.
 Cab over Tractors - Behind the dash or in the console.
NOTE: The switch should
be closed when the cab or
hood is down and open
when the cab or hood is up.
System Components
Warning Stickers (Set Of 3)
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A WARNING
sticker is required
to be applied to
each side of the
hood just above the
release latch as well
as just above the
driver side door
latch. This will
alert a service
technician to the
installation of a
Driver Comfort
Control System so
they can disable
the unit before
performing under
the hood service.
NOTE: Use an alcohol-based
cleaner to cleanse the area
prior to adhering the warning
sticker.
Common Symptoms TAS Will Not Activate & Possible
Fixes
1.
TAS will not go active, led stays red.
•
Possible Tilt Switch circuit open
•
Possible Park Brake circuit open
•
Possible RPM signal loss
•
Quick Tests
a.
With test light check for power at Park Brake wires on switch, or at back of TAS main
control center. ( Wire color on module side are tan / tan & white ) Engine Off. If No power
check Tilt switch wires at back of TAS control center ( wire color gray/ white & gray) If you
find no power, find & repair open circuit. If power found, go to test two.
b.
Start engine. At back of control center, check orange / white wire, for RPM input signal.
With a digital volt meter on 10 volt ac scale you should read at least 3 volts AC. Yes: Replace
TAS control center. No: find & repair lost RPM sig.
page 31
Copyright 2013, Temp-A-Start
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The information in the Power Point Presentation is not all inclusive
and cannot take into account all the unique situations. Note that
some illustrations are typical and may not reflect the exact
arrangement of every component installed on a specific chassis.
The information, specifications, and illustrations in this presentation
are based on information that was current at the time of publication.
No part of this presentation may be reproduced in any way without
prior written consent of Temp-A-Start.