Painless Performance VORTEC 60211 - Manual (Page 8)

A. Find a suitable location to mount the DLC connector (using the bracket that the light is mounted
in) that will allow access to the front of the connector and still allow you to see the light while
driving.
B. Mount the DLC connector using the bracket containing the check engine light in the place
selected.
C. Locate the white ignition hot activation wire, labeled FUSE BLOCK IGNITION (18 Ga.) and attach it to a
12V fused power source where there is power WHEN THE KEY IS IN THE START AND RUN
POSITION. This wire activates the relays that supply power to all the ignition hot circuits in the fuel
injection harness. If the white wire is connected correctly, the check engine light will come on when the
ignition switch is in the "ON and START" position.
D. The purple and brown wires labeled BRAKE SWITCH are the wires that connect to the brake
switch to let the computer know when the brake is applied. If you ARE NOT using a 4L80E then you will
tape off and store these wires. If you ARE using the 4L80E transmission, then you will have to install a
brake switch. The brown wire provides power for this switch and the purple wire is the signal going to the
computer.
E.
If you are using the recommended brake switch then you will wire it according to Figure 6.2.
The brown wire to the back of the switch in the illustration is the wire that has power on it whether or not
the brake is being applied.
CAUTION: FAILURE TO WIRE THIS SWITCH CORRECTLY WILL RESULT IN A
DANGEROUS SITUATION ON THE VEHICLE.
6
FIGURE 6.3 Brake Switch Relay
FIGURE 6.2 Brake Switch Connection