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How to Install PIAA LP270 2.75 in. Round LED Lights - Fog Beam - Pair on your Silverado

Installation Time

1 hours

Tools Required
  • Tape
  • Pliers
  • 13mm wrench
  • Flat head screwdriver

1. Lamp installation

For lamp installation, a hole with a diameter of 8mm is required. Make necessary preparation such as installation of lamp bracket.

CAUTION:

● When using a commercially supplied lamp bracket, before removing the bolt that is already installed on the car body, make sure that it is safe to do so.

● The lamp should be mounted in an area sufficient to support its size and weight. Failure to do so may result in excess vibration leading to shorter bulb life and or physical damage to the lamp or your vehicle.

● Do not attempt to install the lamp directly to any plastic part of the car body. If the lamp needs to be installed on the plastic reinforcement materials should be placed on both sides of the plastic part.

● When installing, make sure the lamp body, lens and rim are not touching the bumper and other plastic parts. Such plastic parts might deform.

● The lamp installation surface should be flat.

● Do not use an Impact wrench when mounting the lamp.

● Over torqueing the mounting nut on the base could cause base failure and void the warranty.

● You must utilize the washer, lock washer, and rubber base.

● Torque specifications on the base mounting nut is 9.5ft・lbs (13N・m)



Assembly Instruction of the bracket and the lamp body

Refer to below drawings; assembly type is different depending on installation locations.

CAUTION:

● The lamp should be tightened to the degree that the lamp body cannot be moved by hand.

● The lamps are designed to be mounted upright. It is very important that you make sure that the“ PIAA” etched in the lens reads right side up.


2. Relay Harness Installation Sequence


DRIVING / Spot Light Aiming

Typically, driving lights are mounted above the front bumper about 14 cm -30 inches from the ground to provide extra high beam illumination. Driving lights can be mounted below the bumper, although they will not be as effective because the light will hit the ground sooner and reduce the range of the light.

Visual aim is made with the center of the beam hot spot 1.5 inches below the lamp center at 25feet with the lamp facing straight forward. (see below.)

CAUTION:

● Do not use driving lights into oncoming traffic. Driving lights should never be the only forward light source. Driving lights should only be used with the headlamp high beams.


FOG Light Aiming

There are two important issues to address when installing fog lights, the first is to minimize the amount of return glare into the drivers eyes, and the other is to minimize glare into oncoming eyes. Both of those issues must be accomplished while putting as much light as possible on the road.

These fog/foul weather light aiming instructions are suggestions taken from common practice and the S.A.E. standard J583. Some modifications to these instructions may be necessary to minimize glare.

Visual aim is made with the top of the beam 4 inches below the lamp center at 25 feet with the lamp facing straight forward. (See below.)

CAUTION:

● Only use fog lights if they are aimed properly. Fog lights should never be the only foreword light source. Fog lights should be used with headlamp low beams.

Troubleshooting……Verify each section according to the following.

1 After installation, if the lamp does not activate

→ Check the wiring and make sure there are no faulty or irregular connections .

● If the switch illumination does not light up.
→ Verify the ( ) wire from the switch is properly connected. If it is not correctly connected it will not activate.
→ Verify the fuse located on the vehicle’s wiring system. (the switch’s ( ) wire should be connected to the fuse box). If it is burned out, connect it to another circuit.
→ If the switch itself is faulty, the same symptoms may exist. We recommend that the entire switch unit be replaced.
→ Check the fuse for the switch harness. If it is burned out, follow instructions indicated in [ 3 Fuse replacement Procedures].

● The switch illumination lights up but when operating does not work.
→ Check the connecting (-) cord to the body earth.
→ There may be cases where each terminal related to specific sections may be incorrectly connected. Check for any lose wires and also for dirt or grime.
→ Check the switch operation If an abnormality is found, replace it accordingly.

2 If the LED suddenly fails to light up …

→ Check the fuse located on the vehicle’s wiring system. If it is burned out, replace accordingly.
→ Check the fuse for the switch harness. If it is burned out, follow instructions indicated in [ 3 Fuse replacement Procedures].
→ There may be cases where each terminal related to specific sections may be incorrectly connected. Check for any lose wires and also for dirt or grime.
→ Check the switch operation if an abnormality is found, replace it accordingly.

3 Fuse replacement procedures

→ A short circuit may have occurred. Check the wiring system. If any type of damage is found replace accordingly. (Non-replacement may pose a potential danger) (Short circuits are mainly caused when wires are caught in the assembly or when there is a gap in the sleeve connected to the lamp harness).