Buick Regal Speedometer Recalibrator Controller Installation
98-05_Regal_Mini-SRC_Install_Instructions_Rev_-.doc, Revision -
Figure 1
The Mini-SRC (Speedometer Recalibration Controller) is an incredibly accurate “tuned loop”
speedometer recalibration controller. It is designed to allow adjustments to speedometer reading from
10 to 255% in 1% increments. This allows the operator to adjust for tire size, gears, or just to calibrate
the stock speedometer reading. The SRC checks switch settings on power up. Changes to the
switches will not result in a % change until the unit is powered down and then back up again.
Tools Needed:
1. Pliers
2. Wire Cutters
Installation:
1. Locate the C101 In-Line IP Connector at the left rear of the engine compartment.
See Figure 2.
2. Identify the Dark Green w/ White Stripe wire located in Pin G on this connector
and connect the SCR’s signal wires to this speed signal wire. Refer to Figure 3.
2.1. Cut the Dark Green w/ White Stripe wire on the female connector, which is the
end towards the front of the vehicle. (This is the speed signal wire.)
2.2. Using included inline wire splices, connect the SRC’s White wire to the Dark
Green w/ White Stripe speed signal wire going INTO the C101 connector and
running to the instrument panel inside the vehicle and to the speedometer.
(If you’ve never used inline wire splices before, they connect easily. Please visit Easy Performance Products and view the
color illustrated instructions found under Tech Info > Using Wire Splice.)
2.3. Splice the SRC’s Green wire to the other half of the Dark Green w/ White Stripe speed signal wire. This end goes to the PCM.
3. Identify the Cruise Control Module (CCM) and its connector. Identify the Brown wire in Pin F and the Black wire in Pin E. See
Figure 4.
3.1. Using inline wire splices, connect the SRC’s Red (power) wire to the Brown wire in Pin F on the CCM connector. This Brown
wire remains connected to the CCM and the SRC’s Red wire just taps off of it for power.
3.2. Using inline wire splices, connect the SRC’s Black (ground) wire to the Black wire in Pin E on the CCM connector. This Black
wire remains connected to the CCM and the SRC’s Black wire just taps off of it for ground.
4. Secure the SCR Module box as needed.
5. This completes the SRC installation.
IMPORTANT: We recommend the SRC be set to 100% before making any adjustments. The unit will initially have a setting of
100% from the factory.
Adjusting SRC Settings:
The SRC settings are changed by remove the two screws holding the SRC module cover on, removing the cover and then modifying
the settings on the DIP Switch block, as shown in Figure 1. Each DIP Switch position represents a value that is summed up if that
switch position is in the ‘ON’ position. A total setting value is obtained by adding up all the switch position values for all switch
positions that are in the ‘ON’ position. For example, if DIP Switch positions #2, #3 and #5 were in the ‘ON’ position and all others
were in the ‘OFF’ position, then a total setting of 104% (64 + 32 + 8) would be set
Example #1 70% Setting (reduces reading by 30%)
Turn switch 2 on +64%
Turn switch 6 on +4%
Turn switch 7 on +2%
Results = 64 + 4 + 2 = 70%
Example #2 152% Setting (increases reading by 52%)
Turn switch 1 on +128%
Turn switch 4 on +16%
Turn switch 5 on +8%
Results = 128 + 16 + 8 = 152%
A 100% setting would cause no change to the speedometer reading. For example, an input of 50mph would have an output of
50mph. This is default factory setting, if not changed. A setting of110% would increase speedometer reading by 10%. A setting of
70% would decrease speedometer reading 30%.
NOTE: All switches in the ‘ON’ position would make a setting of 255%. If all switches were in the ‘OFF’ position, then the setting
would be 0% and the SRC would not output any speed frequency. To eliminate these extremes that can be easily set by accident, a
failsafe is programmed into the SCR module that defaults to 100% (no change) in the event that a 0 or 255% setting is selected.
Buick Regal Speedometer Recalibrator Controller Installation
98-05_Regal_Mini-SRC_Install_Instructions_Rev_-.doc, Revision -
Figure 2
C101
Female
C101
Male
CCM
Figure 3
G
Handy Formulas:
OriginalTireSize
NewTireSize
Setting = 100×
NewGearRatio
OriginalGearRatio
Setting = 100×
Example: 88%
3.29
2.92
= 100× =
gears
gears
Setting and setting the DIPS as: OFF ON OFF ON ON OFF OFF OFF
If you have any question, concerns or comments on the SRC Module Kit and/or the installation instructions, please visit Easy
Performance Products website at Easy Performance Products and click on the Mini-SRC Kit link found under Product in the left window
menu. Please browse the FAQs (Frequently Asked Questions) section. There may be questions you have that are already answered in
that section of the site. Otherwise, please contact us at: support@easyperformance.com.
source: http://www.easyperformance.com/Mini_...ions_Rev_-.pdf
98-05_Regal_Mini-SRC_Install_Instructions_Rev_-.doc, Revision -
Figure 1
The Mini-SRC (Speedometer Recalibration Controller) is an incredibly accurate “tuned loop”
speedometer recalibration controller. It is designed to allow adjustments to speedometer reading from
10 to 255% in 1% increments. This allows the operator to adjust for tire size, gears, or just to calibrate
the stock speedometer reading. The SRC checks switch settings on power up. Changes to the
switches will not result in a % change until the unit is powered down and then back up again.
Tools Needed:
1. Pliers
2. Wire Cutters
Installation:
1. Locate the C101 In-Line IP Connector at the left rear of the engine compartment.
See Figure 2.
2. Identify the Dark Green w/ White Stripe wire located in Pin G on this connector
and connect the SCR’s signal wires to this speed signal wire. Refer to Figure 3.
2.1. Cut the Dark Green w/ White Stripe wire on the female connector, which is the
end towards the front of the vehicle. (This is the speed signal wire.)
2.2. Using included inline wire splices, connect the SRC’s White wire to the Dark
Green w/ White Stripe speed signal wire going INTO the C101 connector and
running to the instrument panel inside the vehicle and to the speedometer.
(If you’ve never used inline wire splices before, they connect easily. Please visit Easy Performance Products and view the
color illustrated instructions found under Tech Info > Using Wire Splice.)
2.3. Splice the SRC’s Green wire to the other half of the Dark Green w/ White Stripe speed signal wire. This end goes to the PCM.
3. Identify the Cruise Control Module (CCM) and its connector. Identify the Brown wire in Pin F and the Black wire in Pin E. See
Figure 4.
3.1. Using inline wire splices, connect the SRC’s Red (power) wire to the Brown wire in Pin F on the CCM connector. This Brown
wire remains connected to the CCM and the SRC’s Red wire just taps off of it for power.
3.2. Using inline wire splices, connect the SRC’s Black (ground) wire to the Black wire in Pin E on the CCM connector. This Black
wire remains connected to the CCM and the SRC’s Black wire just taps off of it for ground.
4. Secure the SCR Module box as needed.
5. This completes the SRC installation.
IMPORTANT: We recommend the SRC be set to 100% before making any adjustments. The unit will initially have a setting of
100% from the factory.
Adjusting SRC Settings:
The SRC settings are changed by remove the two screws holding the SRC module cover on, removing the cover and then modifying
the settings on the DIP Switch block, as shown in Figure 1. Each DIP Switch position represents a value that is summed up if that
switch position is in the ‘ON’ position. A total setting value is obtained by adding up all the switch position values for all switch
positions that are in the ‘ON’ position. For example, if DIP Switch positions #2, #3 and #5 were in the ‘ON’ position and all others
were in the ‘OFF’ position, then a total setting of 104% (64 + 32 + 8) would be set
Example #1 70% Setting (reduces reading by 30%)
Turn switch 2 on +64%
Turn switch 6 on +4%
Turn switch 7 on +2%
Results = 64 + 4 + 2 = 70%
Example #2 152% Setting (increases reading by 52%)
Turn switch 1 on +128%
Turn switch 4 on +16%
Turn switch 5 on +8%
Results = 128 + 16 + 8 = 152%
A 100% setting would cause no change to the speedometer reading. For example, an input of 50mph would have an output of
50mph. This is default factory setting, if not changed. A setting of110% would increase speedometer reading by 10%. A setting of
70% would decrease speedometer reading 30%.
NOTE: All switches in the ‘ON’ position would make a setting of 255%. If all switches were in the ‘OFF’ position, then the setting
would be 0% and the SRC would not output any speed frequency. To eliminate these extremes that can be easily set by accident, a
failsafe is programmed into the SCR module that defaults to 100% (no change) in the event that a 0 or 255% setting is selected.
Buick Regal Speedometer Recalibrator Controller Installation
98-05_Regal_Mini-SRC_Install_Instructions_Rev_-.doc, Revision -
Figure 2
C101
Female
C101
Male
CCM
Figure 3
G
Handy Formulas:
OriginalTireSize
NewTireSize
Setting = 100×
NewGearRatio
OriginalGearRatio
Setting = 100×
Example: 88%
3.29
2.92
= 100× =
gears
gears
Setting and setting the DIPS as: OFF ON OFF ON ON OFF OFF OFF
If you have any question, concerns or comments on the SRC Module Kit and/or the installation instructions, please visit Easy
Performance Products website at Easy Performance Products and click on the Mini-SRC Kit link found under Product in the left window
menu. Please browse the FAQs (Frequently Asked Questions) section. There may be questions you have that are already answered in
that section of the site. Otherwise, please contact us at: support@easyperformance.com.
source: http://www.easyperformance.com/Mini_...ions_Rev_-.pdf
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