Chevrolet Performance 19331517 Manual Del Usuario página 9

• A tachometer signal is included in the bulkhead connector (see below). This is a 4 pulse/rev output which may correspond
to an 8-cylinder setup in some tachometers or transmission controllers. Note the signal is a low voltage square wave, some
tachometers or transmission controllers may need a pull-up resistor in order to read the signal, similar to a 5000 ohm, ¼ watt
resistor– this detail is left to the user. The following circuit has worked for numerous devices – the resister value may need to
be changed if your device does not read this output properly.
Bulkhead Connector Pin C
Engine Speed - Tach Out
Bulkhead Connector Pin L
NOTE: When connected to the CHEVROLET PERFORMANCE Supermatic Connect and Cruise Harness the pull up resister is
not required for the Transmission Controller.
• A vehicle speed output is included in the bulkhead connector for use with auto-scaling speedometers. The vehicle speed sensor
connector in the harness must be attached to a variable reluctance type speed sensor (typical of most late model GM automatic
transmissions) for this to function.
Bulkhead Connector Outputs
Bulk Head Connector
Load View or Rear View
Circuit # Position
2501B A
- B
C_121 C
C_818 D
- E
- F
2500B G
331B H
- J
C_IGN K
C_IGN L
C_50E M
LT4 Crate Engine Control System Kit
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS.
Ignition Voltage
15326849 Connector
12191818 Female Terminal
15366021 Seal
15305171 Plug
15430903 TPA
15317832 CPA
Wire Gage Color
0.5 White
- Plug
0.75 White
0.75 Brown
- Plug
- Plug
0.5 Lt Blue
0.5 Yellow/Brown
- Plug
1.0 Orange
0.75 Pink
1.0 Black
Mating Connector
15326854 Connector
15304701 Male Terminal
15366021 Seal
15305171 Plug
15430903 TPA
Description
GMLAN Low Speed (-)
Empty
Engine Speed
Vehicle Speed - Out
Empty
Empty
GMLAN Low Speed (+)
Oil Pressure Signal
Empty
Battery Power Fuse
Ignition "On" Power
Gound
19331508
REV 01FE17
PART NO.
DATE
21JL16 Previous Revision are Archieved
01FE17 Revision - Blake Nye
Pull High Tach Out
9
SHEET
REVISION
45
OF
AUTH
N/A
N/A