Code Readers, Diagnostic & Test Tools

We’re STILL shipping! Click here for Canada Post labour dispute updates.

Preview our Back to It Big Red Event with deals As Low As We Go This Season.^†

28 results

Make troubleshooting a breeze with car code readers and specialized diagnostic tools

...

What is an OBD2 scanner?

An OBD2 scanner is a specialized vehicle diagnostic tool used to access and retrieve information from a vehicle’s onboard computer system. OBD readers can provide real-time data from various sensors and components within the car, including engine RPM, coolant temperature, oxygen sensor readings, and more.

Do OBD2 scanners work on all cars?

While OBD2 is a universal standard, it may not be compatible with your specific vehicle. It’s recommended to check if the OBD2 scanner works with your vehicle’s make and model before purchase.

Is it worth buying an OBD2 scanner?

If you regularly perform maintenance and repairs on your vehicles or have multiple cars in your household, buying an OBD2 scanner can be a cost-effective investment. It will allow you to diagnose and address issues quickly, potentially saving on repair costs over time. Plus, you can quickly check for trouble codes and monitor your vehicle’s performance for peace of mind during road trips or when driving older vehicles.

What should I consider when buying an OBD2 scanner?

It’s crucial to find an OBD2 scanner that will fit your needs, skill level, and vehicle system. When shopping for a new OBD scanner, make sure that it is compatible with your vehicle’s make and model and that it has a straightforward and intuitive interface for easy navigation. For diagnosing more complex issues, look for OBD2 scanners that can display live data parameters, including fuel system status, engine RPM, and coolant temperature.

Browse our collection for more auto tools, including auto body repair tools, general service tools, repair manuals, and more.

△The tire producer / manufacturer of the tires you are buying, and Canadian Tire is responsible for the recycling fee that is included in your invoice. The tire producer / manufacturer and Canadian Tire uses this fee to pay for the collection, transportation, and processing of used tires.

CANADIAN TIRE® and the CANADIAN TIRE Triangle Design are registered trade-marks of Canadian Tire Corporation, Limited.

^±Was price reflects the last national regular price this product was sold for.

**Online prices and sale effective dates may differ from those in-store and may vary by region. Dealers may sell for less.

* Financing available is “Equal payments, no interest” for 24 months (unless otherwise stated) and is only available on request, on approved credit and on purchases of $150 (unless otherwise stated) or more (Gift Cards excluded) made with your Triangle credit card at Canadian Tire, Sport Chek, Mark’s, L’Équipeur, Atmosphere, Sports Rousseau, Hockey Experts, L’Entrepôt du Hockey and participating Sports Experts. Interest does not accrue during the period of the plan. However, if we do not receive the full minimum due on a statement within 59 days of the date of that statement, or any event of default (other than a payment default) occurs under your Cardmember Agreement, all special payment plans on your account will terminate and (i) you will then be charged interest on the balances outstanding on such plans at the applicable regular annual rate from the day after the date of your next statement, and (ii) the balances outstanding will form part of the balance due on that statement. There is no administration fee charged for entering into a special payments plan. Each month during an equal payments plan you are required to pay in full by the due date that month’s equal payments plan instalment. Any unpaid portion not received by the due date will no longer form part of the equal payments plan and interest will accrue on that amount from the day after the date of your next statement at the applicable regular annual rate. Offer subject to change without notice.

Additional information for residents of Quebec only: The regular annual rate for persons applying for the Triangle Mastercard and the Triangle World Elite Mastercard is 21.99% for cash transactions and related fees and 21.99% for all other charges. Some applicants may receive a higher or lower regular annual rate depending on a credit evaluation. The minimum payment is the sum of (a) the greater of: (i) interest and fees shown on your statement + $10; or (ii) 5% of the New Balance, excluding amounts on special payment plans, (b) any balance over your credit limit, (c) any amounts past due not included in (b) above, and (d) the amount of any equal payments plan instalments then due. Balances under $10 are due in full. For residents of Quebec, the period between the statement date and the due date for payment is 26 days. The billing period covered by each statement can be from 28-33 days. The Triangle Mastercard and the Triangle World Elite Mastercard do not have an annual fee. Examples of borrowing costs (rounded to the nearest cent) assuming that all charges are purchases bearing interest at the regular annual rate of 21.99%, a 30 day month, no charges made on special payment plans and no other fees, additional payments or other changes are:

If your average balance is:	Total monthly credit charges will be:
$100	$1.81
$500	$9.04
$1000	$18.07
$2000	$36.15

^† In the form of electronic Canadian Tire Money® (CT Money®). You cannot collect paper Canadian Tire Money on bonus offers. Any bonus multiplier is based on the base rate of collecting CT Money. Not all items sold at Canadian Tire earn CT Money. The offered rate is exclusive of any bonus or promotional offers or redemption transactions. CT Money is collected on the pre-tax. Bonus CT Money collected from online orders will be applied to the member’s Triangle Rewards™ account within 5 weeks of the purchase date. Terms and Conditions apply. Visit Triangle Rewards: Sign Up & Earn Today for more information.

^®/TMMark’s is a registered trademark of Mark’sWork Warehouse Ltd, used under licence.

^®/TMSport Chek is a registered trademarkof FGL Sports Ltd, used under licence.

^◊Off our original prices. Pricing, selection, and availability of clearance items are determined by each store. Applicable on select styles/sizes. Clearance items may be display models or not exactly as shown. Quantities may be limited and may vary by store. Rainchecks unavailable. We reserve the right to limit quantities. Shop early for greatest selection. Contact your local store for more information.

^‡‡Shipping fees apply. Shipping fees and delivery times vary depending on location, size and weight of the item(s) and is only available within the province of the Canadian Tire retail location (“Store”) from which the item(s) was purchased. Bulk items will only be delivered within a 100km radius of the Store. Not available in Recontre East, NL. Conditions and restrictions apply. Visit Online Ordering for more information.

®/™ Mastercard, World Mastercard and World Elite are registered trademarks, and the circles design is a trademark of Mastercard International Incorporated.
®/TM Unless otherwise noted, all trademarks are owned by Canadian Tire Corporation, Limited and are used under license.
◊Off our original price. Quantities may vary by store. Some clearance product and price points may not be available at all locations.
± Was price reflects the last national regular price this product was sold for

®/™ Unless otherwise noted, all trademarks are owned by Canadian Tire Corporation, Limited.

*$9.99 + tax delivery fee. Select your store and enter postal code on the product page while shopping to determine if same day delivery is available. Products must meet certain cube/weight dimensions and distance from store must be less than 10km. For full terms/conditions, visit https://www.canadiantire.ca/en/customer-service/online-ordering.html

*Free at the majority of stores. Some stores may require a minimum order value (before taxes). Orders that do not meet the minimum order value will be subject to a fee. Orders ready typically within 24 hours. Wait for Ready for Pick Up email before proceeding to store. **$9.99 + tax delivery fee. Available at select stores. Select your store and enter postal code on the product page while shopping to determine if same day delivery is available. Orders placed before the cutoff time will be delivered the same day, and orders placed after cutoff time will arrive the next day. Eligible in-stock items only. Products must meet certain cube/weight dimensions and distance from store must be less than 10km. For full terms/conditions, visit https://www.canadiantire.ca/en/customer-service/online-ordering.html

®/TM Unless otherwise noted, all trademarks are owned by Canadian Tire Corporation, Limited and are used under license.

*Terms and conditions apply to collecting and redeeming. Visit triangle.com for full program rules. Ordinarily you are not able to collect Canadian Tire Money® (CT Money®) on that portion of a transaction in respect of which you redeemed CT Money, but can do so with this special offer. You may redeem for the full purchase price in CT Money to a maximum of $1,000 but bonus CT Money is calculated only on the pre-tax amount. Special offer not valid for Gift Card purchases. Pre-tax purchase. Bonus applied to maximum redemption of $1,000. No rainchecks.

* The Triangle Rewards Program is owned and operated by Canadian Tire Corporation, Limited. The Triangle® credit cards are issued by Canadian Tire Bank. Rewards are in the form of electronic Canadian Tire Money® (CT Money®). To collect bonus CT Money you must pay with a Triangle credit card. You cannot collect paper Canadian Tire Money on bonus offers. Any bonus multiplier is based on the base rate of collecting CT Money (0.4%), and will be added to whatever the Member would otherwise collect, without the bonus. Example: On a $100 (pre-tax) purchase with a 20x bonus multiplier a Member would earn a bonus $8 in CT Money (20 X 0.4% X $100). The 30x for Triangle® Mastercard®, World Mastercard® and World Elite® Mastercard® customers consists of the 10x everyday plus a 20x bonus. Not all items sold are eligible to earn CT Money or to be redeemed for. Conditions apply. Visit triangle.com for full program rules and Partner location information. The offered rate is exclusive of any bonus or promotional offers or redemption transactions. CT Money is collected on the pre-tax amount of the purchase. Bonus CT Money may take up to 5 weeks to be applied to the Member’s Triangle Rewards Account. No rainchecks. Must pay with a Triangle credit card. Gift cards and other items excluded.

®/™ Mastercard, World Mastercard, World Elite and the circles are registered trademarks of Mastercard International Incorporated.

*The Triangle Rewards Program is owned and operated by Canadian Tire Corporation, Limited. The Triangle® credit cards are issued by Canadian Tire Bank. Rewards are in the form of electronic Canadian Tire Money® (CT Money®). To collect bonus CT Money you must present a Triangle Rewards card/key fob, or use any approved Cardless method, at time of purchase or pay with a Triangle credit card. You cannot collect paper CT Money on bonus offers. Minimum $150 spend is on the pre-tax amount on the same tender and for a single transaction. $150 must be spent on items that earn CT Money. Not all items sold at Canadian Tire are eligible to earn CT Money or to be redeemed for. Conditions apply. Visit triangle.com for full program rules and Partner location information. The offered rate is exclusive of any bonus or promotional offers or redemption transactions. CT Money is collected on the pre-tax amount of the purchase. Bonus CT Money may take up to 5 weeks to be applied to the Member’s Triangle Rewards Account. No rainchecks. Single use only per Triangle Rewards Account.

*The $120 instant rebate is valid on the Nespresso Vertuo Next Premium coffee machines (all colours, with or without the Aeroccino Milk Frother), the $100 instant rebate is valid on Nespresso Vertuo Next Standard coffee machines (all colours, with or without the Aeroccino Milk Frother) and the $100 instant rebate is valid on Nespresso Pixie espresso machine in the colour Silver (without the Aeroccino Milk Frother) (the “Participating Nespresso Machines”), while supplies last, excluding Nespresso Business Solution Machines and machines discontinued since January 4, 2024. Each instant rebate will only be offered on participating Nespresso machines sold at the regular retail price and purchased between August 8, 2025, 12:00:00 AM ET and September 4, 2025, at 11:59:59 PM ET, while supplies last. The regular price of the coffee machines can be found online at www.nespresso.ca. This offer is valid for machines purchased in Canada only and only for Canadian shipping addresses. Offer is available only at participating Canadian Tire stores and online at www.canadiantire.ca. Offer is subject to stock availability of Participating Nespresso Machines and does not include applicable taxes.

The 540 ml Travel Mug in Smokey Blue (the ”Gift”) valued at $35.00 is eligible for free delivery with the purchase of a participating Nespresso Vertuo Next coffee machine. Offer must be redeemed by October 5, 2025, 11:59:59 PM ET online at promo.nespresso.ca by submitting a complete application including proof of purchase and a picture of the machine serial number. The Gift can only be redeemed once (1) per customer regardless of the number of machines purchased. The free delivery offer will be applied automatically to your order. The Nespresso Club is not responsible for lost, stolen, misdirected, late, illegible, or incomplete applications. For further information on how to obtain your Gift or to obtain an application form, visit promo.nespresso.ca or call the Nespresso Club at 1.855.325.5781, during our business hours. One (1) Nespresso account per person. Nespresso reserves the right to require proof of identity in order to verify compliance with this offer, and may refuse this offer where Nespresso, in its sole discretion, believes a person is using multiple Nespresso accounts.

Offer void where prohibited or restricted. Not valid in combination with any other offer on machines from Nespresso, promotion, or employee discount. A limit of five (5) Participating Nespresso Machines per person or household is set as part of this promotion. Offer may be cancelled at any time without notice. If the 540 ml Gift is out of stock, Nespresso reserves the right to replace the Gift with a Gift of superior, equal or lesser value.

*NO PURCHASE NECESSARY. Contest runs from August 7 – 14, 2025 (“Contest Period”). Contest Period is comprised of 8 separate daily contests (“Daily Contest”). Each Daily Contest will have 10 Prizes available to be won consisting of one (1) $500 Canadian Tire gift card. The winners will be drawn on August 15, 2025. Total approximate Retail Value of all 80 prizes is $40,000 CAD. Odds of winning depend on the number of eligible entries received for each Daily Contest. Correct answer to skill-testing question required. For Official Rules, and complete details, visit www.canadiantire.ca/BackToClassContest.

Code Readers, Diagnostic & Test Tools

Make troubleshooting a breeze with car code readers and specialized diagnostic tools

Customer Support

Services & Solutions

About Us

Legal