User's Manual

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 18 gauge, pink, ignition hot activation wire labeled FUSE BLOCK IGNITION and

attach it to a fused, 12 volt 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 pink wire is connected correctly the check engine light

will come on when the ignition switch is in the ON or START position. Do not connect the

battery to test this until all connections are made.

D. 4L60E only:

Locate the Org/Blk and Blk/Wht wires in the dash group. These two wires are for

the Gear INDICATOR

Switch. The Org/Blk wire is the signal wire for the ECM to know the

vehicle is in park or neutral. The Blk/Wht wire is a supplied ground wire for the gear indicator

switch. If you have a GM column then you can use the combination switch Delco P/N D2286A

and wire it as described in paragraph two or three below. The ORN/BLK wire needs to be

grounded in park and neutral and ungrounded in drive. This can also be done with a toggle switch

or a switch on the parking brake. NOTE: The Orn/Blk and Blk/Wht wires are only needed if

using a 4L60E transmission. If you are using a manual transmission then you will tape and

stow these wires.

D.1. The recommended switch is a combination reverse light, gear indicator AND neutral safety switch.

You may use it for all these purposes if you wire it EXACTLY as shown in Figure 6.4

Illustration B

D.2. If you are going to use the recommended switch as a gear indicator for the computers benefit

ONLY, then you will wire it as shown in Figure 6.4 Illustration A.

D.3. You may want to install your own switch. This switch must connect the Orn/Blk wire to ground

only when the car is in PARK OR NEUTRAL. Use the Blk/Wht wire to supply ground to this

switch. The other end of the Blk/Wht wire is already grounded throughout the harness.

E. Manual Transmission only

: Locate the gray and pink Clutch Pedal Position wires. Connect

these wires to a normally closed switch on the clutch pedal assembly. These wires need contact

between them when the clutch pedal is not depressed and loose contact between them when the

clutch pedal is depressed.

F. The Purple, Pink and Lt.Blue wires labeled BRAKE SWITCH are the wires that connect to the

brake switch. The Purple and Pink wires are connected to the normally closed side of the brake

switch. Pink is power and Purple is signal to let the computer know when the brake is applied.

These wires must be connected so the lock up function of the torque converter will operate

correctly. If you are not using a 4L60E then tape off and store these two wires. Connect the Lt.

Blue wire to the normally open brake lamp side of the brake switch regardless of which

transmission you are using. See Figure 6.2.