SPEEDWAY 910-62850 Circuit Breaker Turn Signal Switch Instructions

October 30, 2023
speedway

SPEEDWAY - logo

INSTRUCTIONS
© 2022, Speedway Motors, Inc.

910-62850 and 910-62860 – Turn Signal Switch

These instructions will work for our Standard Turn Signal Switch (PN 910-62850) or our heavy duty Turn Signal Switch (PN 910-62860). These switches utilize different wire colors, so please refer to the wiring charts provided below for connection. Otherwise, installation and wiring steps will be similar. These switches will work with 6-volt positive ground or 12-volt negative ground electrical systems. When utilizing this switch with a 6-volt positive ground system the power to the flasher will connect to the negative battery terminal or your hot terminal block of your original wiring harness. A 6-volt flasher unit must be used, and the indictor bulb in the switch replaced with a 6-volt bulb if you plan to use the internal indicator. Please observe all safety precautions, including disconnecting your vehicle’s battery and working in a well-lit and ventilated location.

Mounting The Turn Signal Switch

Determine the mounting location on your steering column tube, ensuring the turn signal switch body and lever clear the steering wheel and any dash switches (headlight switch, wiper switch, etc.). The included mounting clamp will work for up to 2-inch diameter steering column tubes. If your tube is larger than 2-inches you can simply replace the included clamp with one of the proper size for your application.
Once a suitable location has been verified sand to bare metal a spot on the steering column tube location where the clamp will sit to ensure a solid electrical ground. The switch body MUST be grounded for proper operation. If your column is not able to provide a good ground path (fiberglass dash, rubber column isolator, etc.) then add a length of 16-gauge wire under the clamp/switch body to a proper ground location in your vehicle. Loosen/expand the clamp until it is open and can be placed over the column tube. Thread the clamp through the turn signal switch body and tighten the clamp to secure. Do not overtighten the clamp.

Wiring The Turn Signal Switch

Before you begin your turn signal switch wiring you will need to decide if you plan to use the single integral turn signal indicator lamp in the switch itself or individual dash mounted turn signal indicators for left and right turn. This decision will determine whether you will use a two-prong (PN 910-64047) turn signal flasher or three-prong (PN 910-64046) turn signal flasher.

If wiring this switch to our 22-circuit (PN 910-64022) or 12-circuit (PN 910-64017) wiring harnesses or similar style aftermarket harness with a GM turn signal switch connector you have several options:

  • Use the harness supplied two-prong flasher and left/right turn indicators in your dash/gauge cluster
  • Use the harness supplied two-prong flasher and a pair of 1/4-watt diodes between the left and right indicator wires connected to the switch’s indicator wire (silver band on diode to blue wire for 910-62860 or yellow wire for 910-62850)
  • Use a three-prong flasher and connect the switch’s indicator wire (blue wire for 910-62860 or yellow wire for 910-62850) to the “P” terminal of the flasher to use the indicator integrated into the switch

Note that if you opt to use the three-prong flasher with our 22-circuit or 12-circuit (or similar) harnesses you can source your key-switched power or constant power from the turn signal (cavity L) or hazard (cavity K) feed wires in the GM turn signal switch connector by simply fabricating and installing a jumper pigtail with non-insulated male spade terminals in place of the two- prong flasher unit in the fuse box/harness.
If you are using the two-prong flasher in your fuse box/harness with dash mounted turn signal indicators simply connect the red wire (switch PN 910-62850) or black wire (switch PN 910-62860) from the turn signal switch directly to the turn signal (cavity L) or hazard (cavity K) feed wires in the GM turn signal switch connector.
Depending upon steering column length and your existing harness connection point the turn signal switch wiring may need to be extended. Use minimum 16-gauge wiring with soldered and shrink wrapped or insulated crimp connections. If possible, try to use the same color wiring to prevent connection confusion to your vehicle’s wiring harness.
Use the wiring chart below to connect the turn signal switch to your harness’s GM turn signal switch connector. We offer a GM turn signal switch connector (PN 910-500428) with connector shell and terminals to make the job easier if you do not already have one. If your vehicle wiring is original, you will have to determine via a wiring diagram which wires to tap into or simply run the turn signal switch wiring directly to the front and rear turn signal bulb assemblies if your vehicle harness does not have provisions for turn signal wiring. If you opt to use the two-prong flasher in your fuse box (or a jumper with the three-prong flasher) you will not need to install the supplied red wire and inline fuse holder. This is only needed when using the three-prong flasher configuration in a freestanding wiring installation.
The red wire (for 910-62860) or orange wire (for 910-62850) is optional for brake light pass through. This wire will only need to be connected if your brake and turn use the same filament (in an 1157 bulb for example). If your turn and brake lights are separate lamps this wire does not have to be connected to the output side of your brake light switch and can be trimmed back and the end sealed.
Traditionally, hazards work with the key off or on, while turn signals only work with the key on. When wiring your switch’s flasher, be it a free-standing three-prong or the two-prong turn/hazard option in a modern wiring harness, understand that if you wire to a hot at all times circuit both hazard and turn signals will work with the key off. Alternatively, if you wire to an ignition switched circuit your hazards and turn signals will only work with the key on.

A Note on LED Bulbs

This turn signal switch is designed to work with standard incandescent bulbs but will work with modern LED bulbs if dummy load resistors (PN 910-03030) are used inline with the LED turn signal bulbs. Dummy load resistors should be installed in the front light circuits to prevent excessive heating during times that the brake may be applied for extended time (such as stopped at a stop light). An alternative method is to use a two-prong LED flasher unit with ground wire; however, this is only an option when a modern wiring harness in the car is used.

Switch Operation

To operate the turn signals, move the turn signal lever up or down to enable the right or left turn signals to flash. After completing your turn move the lever back to the off/neutral position.
To enable the hazard/four-way flashers pull the red knob outward to engage while the turn signal lever is in the off/neutral position. To cancel the hazard/four-way flashers move the turn signal lever up or down.

SPEEDWAY 910 62850 Circuit Breaker Turn Signal Switch
-

How to hook up Turn signal switch 910-62850 and 910-62860 to wire harnesses 910-64022:

Turn Signal 910-62850 22 Circuit Harness 910-64022
Circuit #1 Black, right rear turn lamp connect to Circuit #19 Dark Green,

right rear turn (cavity N)
Circuit #2 Sky Blue, right front turn lamp| connect to| Circuit #15A & B, Dark Blue, right front turn (cavity J)
Circuit #3 Dark Blue, left rear turn lamp| connect to| Circuit #18 Yellow, left rear turn (cavity M)
Circuit #4 Green, left front turn lamp| connect to| Circuit #14A & B, Light Blue, left front turn (cavity H)
Circuit #5 Orange, stop switch| connect to| Circuit #17A White, brake light switch wire (cavity P)
Circuit #6 Red, Flasher, Terminal “L”| connect to| Circuit #16 Purple, turn switch feed (cavity L)
Circuit #7 Yellow, Flasher, Terminal “P”| | Not Used
Turn Signal 910-62860| | 22 Circuit Harness 910-64022
---|---|---
Circuit #1 turn Lamp, Left Front – Yellow| connect to| Circuit #14A & B, Light Blue, left front turn (cavity H)
Circuit #2 turn lamp, Right Front – Green| connect to| Circuit #15A & B, Dark Blue, right front turn (cavity J)
Circuit #3 turn lamp, Left Rear – Orange| connect to| Circuit #18 Yellow, left rear turn (cavity M)
Circuit #4 turn lamp Right Rear – Brown| connect to| Circuit #19 Dark Green, right rear turn (cavity N)
Circuit #5 Brake light switch – Red| connect to| Circuit #17A White, brake light switch wire (cavity P)
Circuit #6 Flasher, Terminal “L” – Black| connect to| Circuit #16 Purple, turn switch feed (cavity L)
Circuit #7 Flasher, Terminal “P” – Blue| | Not Used

How to hook up Turn signal switch 910-62850 and 910-62860 to wire harnesses 910-64017:

Turn Signal 910-62850 12 Circuit Harness 910-64017
Circuit #1 Black, right rear turn lamp connect to Circuit #21 Green, right

rear turn signal (cavity N)
Circuit #2 Sky Blue, right front turn lamp| connect to| Circuit #16/17 Blue, right front turn signal (cavity J)
Circuit #3 Dark Blue, left rear turn lamp| connect to| Circuit #20 Yellow, left rear turn signal (cavity M)
Circuit #4 Green, left front turn lamp| connect to| Circuit #14/15 Light Blue, left front turn signal (cavity H)
Circuit #5 Orange, stop switch| connect to| Circuit #18 White, brake light switch wire (cavity P)
Circuit #6 Red, Flasher, Terminal “L”| connect to| Circuit #25 Purple, turn flasher power feed (cavity L)
Circuit #7 Yellow, Flasher| | Not Used
Turn Signal 910-62860| | 12 Circuit Harness 910-64017
---|---|---
Circuit #1 turn lamp, left front – Yellow| connect to| Circuit #14/15 Light Blue, Left front turn signal (cavity H)
Circuit #2 turn lamp, right front – Green| connect to| Circuit #16/17 Blue, Right front turn signal (cavity J)
Circuit #3 turn lamp, left rear – Orange| connect to| Circuit #20 Yellow, Left rear turn signal (cavity M)
Circuit #4 turn lamp, right rear – Brown| connect to| Circuit #21 Dark Green, right rear turn signal (cavity N)
Circuit #5 Brake light switch – Red| connect to| Circuit #18 White, brake light switch wire (cavity P)
Circuit #6 Flasher, Terminal “L” – Black| connect to| Circuit #25 Purple, turn flasher power feed (cavity L)
Circuit #7 Flasher, Terminal “P” – Blue| | Not Used

Wiring Diagram for a 3-prong Turn Signal Flasher

This style of flasher is commonly used with clamp-on turn signal switch units with single integral turn indicator bulb. It may also be used with a single dash mounted turn signal indicator bulb, either in a factory gauge or with a single green bulb indicator installed, such as our PN 911-31054-GRN.

SPEEDWAY 910 62850 Circuit Breaker Turn Signal Switch -
fig1

IMPORTANT

DISCLAIMER In an effort to offer our customers low prices, quick service and great value, Speedway Motors reserves the right to change suppliers, specifications, colors, prices, materials without notice. Prices and policies that were current and in effect at the time of printing are also subject to change without notice. Quantities are limited on some items. Any unauthorized use of this catalog including words, photos or drawings is prohibited. Speedway is not responsible for any typographical errors, printing errors or misinterpretations
WARRANTY DISCLAIMER Purchasers understand and recognize that racing parts, specialized street rod equipment, and all other parts and services sold by Speedway Motors, Inc. are exposed to many and varied conditions due to the manner in which they are installed and used. Except for certain limited warranties, if any, set forth in Speedway Motors, Inc.’s current catalog with respect to the products and/or parts thereof identified on your invoice, each product, and each part thereof, is sold “as is”, and “with all faults” and Speedway Motors, Inc. makes no warranties either expressed or implied, written or oral, with regard such products and services including, without limitation, any warranty of merchantability or fitness for a particular purpose. Without limiting the foregoing, there is no warranty expressed or implied as to whether the goods sold hereby will protect purchasers or ultimate end-users of such products and parts from injury or death. In no event shall Speedway Motors, Inc. be liable for any special, incidental or consequential damages, or any other damages whatsoever arising out of or connected with the use or misuse of the products and each part thereof. Purchasers acknowledge and agree that no person, entity or agent of Speedway Motors, Inc. has any authority to make any statement contrary to this disclaimer and that any warranty statements or representations allegedly made on behalf of Speedway Motors, Inc. by any such person, entity or agent are void. Purchasers are relying solely on their own skill and judgment to select, purchase and use suitable products and assume all responsibility and risk with regard thereto. Some local laws prohibit the use of utility jugs, funnels and barrel pumps for dispensing fuel. Please check your own state for more information, regulations or further direction in your use of the utility jugs, funnels and barrel pump described in Speedway Motors catalogs or on Speedway Motors websites. Some parts in this catalog are not legal for sale or use in California. Items sold in this catalog are for racing
vehicles which may never be used on a highway. The use of manufacturer’s names and symbols are for reference purposes only.
DAMAGE CLAIMS Please inspect all packages upon delivery and in the presence of the delivery driver when possible. The driver must note any visible damage and provide procedures for handling damage claims. To allow for a claims process, please retain original box, packing material and damaged merchandise. Contact Speedway Motors for instructions regarding damage claim within 5 days of receipt. Speedway Motors assumes no liability after this period.
SHORTAGES Please check the contents of your delivery to ensure that all parts ordered are received. Refer to your invoice to cross check all items received and inspect all packing materials for contents of small items. Retain original shipping box and packing materials. Orders may be split into multiple boxes which can be delivered on different days. Contact Speedway Motors for instructions regarding shortage claim within 5 days of receipt. Speedway Motors assumes no liability after this 5 day period.
REFUSALS All refused packages will be billed the freight to and from the destination and refused COD orders will be billed a 15% restocking charge plus freight to and from destination.
WARRANTY CLAIMS If the item is used or installed and a warranty claim request is submitted, warranty work is done by the manufacturer and may take up to 30 days for processing. Speedway Motors will be required to follow the manufacturer’s warranty instructions to allow for a credit refund or exchange when specified.
Find the above info on our website:
SpeedwayMotors.com/Info/FAQ

RETURNS We want you to be satisfied with your purchase. If you are not satisfied, you may return your new, unused item within 60 days for refund or exchange.
All exchanged or returned merchandise must be in original factory condition with no modifications or alterations. Returned merchandise must include original packaging materials, warranty cards, manuals, instructions, etc. If the returned item requires repackaging, your refund / exchange will be subject to a repackaging charge. Return/Exchange transactions less than $99 are excluded from the free shipping offer.
HOW TO RETURN AN ITEM Please re-pack the item in a sturdy box, include a copy of your invoice and completed return form. Returns must be shipped prepaid. CODs are not accepted. Shipping costs for exchanged merchandise will be charged to your credit card.
Items that are returned after 60 days are subject to a 15% restocking charges. Fiberglass items returned will be subject to a 15% restocking charge. We are unable to accept returns on electrical parts, video tapes, DVD’s, books, special order or closeout merchandise.
BRAKE INSTALLATION ALERT The selection and installation of brake components should only be done by personnel experienced in the proper installation and operation of braking systems. The installer must use his/ her own discretion to determine the suitability of all brake components and brake kits for every particular application. Speedway Motors, Inc. makes no warranties either expressed or implied including any warranty of merchantability or fitness for a particular purpose, other than those contained
in its current catalog or website with respect to the goods identified on the face of the invoice. There is no warranty expressed or implied as to whether the goods sold hereby will protect the purchaser or ultimate user of such goods from injury of death.
EXHAUST INSTALLATION ALERT Exhaust systems and other component surface finishes are not permanent. Coatings, paint and other factory supplied cosmetic treatments are only intended to protect from surface corrosion in an unused state. No returns are allowed after the parts have been installed. Header flanges must be clean and clear of paint and surface contaminants prior to mating to exhaust gaskets. Exhaust fasteners must be re-torqued after the initial heat cycle and regularly thereafter to ensure a proper gasket seal is maintained. Should you decide to install this exhaust product at your home, be warned that pleasure car or light duty truck/van “bumper” jacks are intended for emergency use only. The use of frame contact jack stands in conjunction with a floor jack as a main support is highly recommended to minimize accidental dropping of a vehicle while the installation proceeds. We recommend the use of a shop hoist if possible. Please use caution! Speedway Motors, Inc. makes no warranties either expressed or implied including any warranty of merchantability or fitness for a particular purpose, other than those contain in its current catalog or website with respect to the goods identified on the face of the invoice. There is no warranty expressed or implied as to whether the goods sold hereby will protect the purchaser or ultimate user of such goods from injury or death.
CHECK LOCAL LAW Some parts are not legal for sale or use in California on any pollution controlled motor vehicles. These items are legal in California for racing vehicles only which may never be used upon a highway. Check local law.

SPEEDWAY - logo© 2022, Speedway Motors, Inc.
Speedway Motors, Inc.
P.O. Box 81906 • Lincoln, NE 68501
800.979.0122 • SpeedwayMotors.com

Read User Manual Online (PDF format)

Loading......

Download This Manual (PDF format)

Download this manual  >>

Related Manuals