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LS HARNESS Vortec W/ 4L60E STANDALONE WIRING HARNESS, DBC
This harness is designed to be a complete wiring harness for fuel injection system on GM 1999 and
2006 Vortec engines with Drive by Cable throttle body and 4L60E or 4L80E (with
adapter) transmissions.
1. Never disconnect the battery while the ignition is on.
2. Never short any wires in the wiring harness to ground (with the exception to the ground wires) this
can cause damage to the PCM.
3. A Multi-meter with a minimum of 10-Mohm resistance is required for test circuits. Do not back
probe wires, this can lead to permanent wire damage.
Requirements:
1. All Vortec engines require VATS to be removed from the PCM.
2. Vortec harness utilize two sensors on each side of the engine, one before and after the catalytic
converter. The rear O2 sensors (after the catalytic converter) are NOT used.
3. All Vortec engines utilize an EGR, Air Pump, and CCP features for emission control, this harness
does not include provisions for, EGR, Air Pump, and CCP are not necessary for engine operation.
PCM programing may be necessary to avoid storing a Diagnostic Trouble Codes (DTC) for the
absence of emission equipment
4. When using 4L60E or 4L80E transmission you Must have a two-position brake switch. These are
necessary to allow proper function of the TCC. The brake switch should be closed (not
electronically connected) when brakes are not being applied and open (not electronically connected)
when brakes are being applied. This is the opposite of a standard brake switch.
CAUTION: Failure to wire brake switch correctly can result with the torque converter is unable to unlock.
ITEM DESCRIPTION
MAIN COMPUTER (PCM)
MANIFOLD ABSOLUTE PRESSURE (MAP) GM# 16212460 / DELCO # 12614970
ENGINE COOLANT TEMP SENSOR (ECT) GM# 15326388 / DELCO# 213-953
OIL PRESSURE SENSOR
IGNITION COIL
OXYGEN SENSOR (O2)
THROTTLE POSITION SENSOR (TPS)
MASS AIR FLOW SENSOR (MAF)
SENSOR PART NUMBER
PART NUMBER
GM# 9354896 OR 12200411
GM#12562267
GM#12558948 / TSP# 81015-8
GM# 25161131 / DELCO# AFS123
GM# 17123852 / DELCO# 213-912
GM# 25168491 / DELCO# 213-364
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Summary of Contents for Dasbecan 4L60E
- Page 1 PCM programing may be necessary to avoid storing a Diagnostic Trouble Codes (DTC) for the absence of emission equipment 4. When using 4L60E or 4L80E transmission you Must have a two-position brake switch. These are necessary to allow proper function of the TCC. The brake switch should be closed (not electronically connected) when brakes are not being applied and open (not electronically connected) when brakes are being applied.
- Page 2 Tools Required: 1. Terminal Crimping Tool 2. Wire Strippers 3. Electric Drill 4. 2” Hole Saw (for rubber grommet for the firewall) • The wiring harness is designed to mount under the dash or in the kick panel on the right side of the vehicle.
- Page 3 ACCESSORY WIRES BROWN MIL LAMP GROUND THROUGH AUTOMOTIVE LIGHT TO 12V BLACK SPEEDOMETER SPEEDOMETER MODULE WHITE TACHOMETER ELECTRONIC TACHOMETER DARK GREEN FAN 1 GROUND GROUND SIDE OF FAN RELAY 1 DARK BLUE FAN 2 GROUND GROUND SIDE OF FAN RELAY 2 ORANGE PARK NEUTRAL SIGNAL TO GROUND (IN PARK AND NEUTRAL)
- Page 4 NOTE: If using a Normally Closed Cruise Control Switch, follow the diagram below to wire up your cruise control. BRAKE SWITCH HOT W/ BRAKE APPLIED 12V From Fuse Panel PICO PICO #5591PT #5591PT NORMALLY NORMALLY CLOSED OPEN GREY DARK BLUE BLACK YELLOW TAC MODULE...
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