{"product_id":"car-relay-tester-portable-circuit-diagnostics","title":"Car Relay Tester – Portable Circuit Diagnostics","description":"\u003c!-- Opening lifestyle image --\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0985\/9658\/5803\/files\/relatestrare-motorbay-anvandning.jpg?v=1786380275\" alt=\"Relay tester connected to a car battery in the engine bay\" style=\"max-width:100%;border-radius:12px;display:block;\" loading=\"lazy\"\u003e\n\n\u003c!-- Benefit chips --\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 6px;\"\u003e\n  \u003cspan style=\"display:inline-flex;align-items:center;gap:7px;background:#F7F3EE;border:1px solid #E8E2D9;border-radius:999px;padding:7px 15px;font-size:14px;color:#1a1a1a;\"\u003e\u003cspan style=\"color:#2C5A78;font-weight:700;\"\u003e✓\u003c\/span\u003eTests 4- and 5-pin relays\u003c\/span\u003e\n  \u003cspan style=\"display:inline-flex;align-items:center;gap:7px;background:#F7F3EE;border:1px solid #E8E2D9;border-radius:999px;padding:7px 15px;font-size:14px;color:#1a1a1a;\"\u003e\u003cspan style=\"color:#2C5A78;font-weight:700;\"\u003e✓\u003c\/span\u003eClear LED indication\u003c\/span\u003e\n  \u003cspan style=\"display:inline-flex;align-items:center;gap:7px;background:#F7F3EE;border:1px solid #E8E2D9;border-radius:999px;padding:7px 15px;font-size:14px;color:#1a1a1a;\"\u003e\u003cspan style=\"color:#2C5A78;font-weight:700;\"\u003e✓\u003c\/span\u003eNo prior knowledge needed\u003c\/span\u003e\n  \u003cspan style=\"display:inline-flex;align-items:center;gap:7px;background:#F7F3EE;border:1px solid #E8E2D9;border-radius:999px;padding:7px 15px;font-size:14px;color:#1a1a1a;\"\u003e\u003cspan style=\"color:#2C5A78;font-weight:700;\"\u003e✓\u003c\/span\u003eSuits most passenger cars\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003c!-- Section 1: Problem\/capability opener --\u003e\n\u003cp style=\"margin:34px 0 2px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#2C5A78;font-weight:600;\"\u003eThe problem\u003c\/p\u003e\n\u003ch2 style=\"margin:2px 0 10px;\"\u003eA relay tester that answers you right there in the engine bay\u003c\/h2\u003e\n\u003cdiv style=\"height:3px;max-width:120px;margin:4px 0 28px;background:linear-gradient(90deg,#2C5A78,#4A8AB8 70%,transparent);border-radius:2px;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003eOdd noises from the AC, an ignition that will not respond, a window that has stopped moving – \u003cstrong\u003ea faulty relay is often the cause, and a relay tester gives you the answer in seconds\u003c\/strong\u003e. Connect the crocodile clips to the car battery, insert the suspect relay and press the TEST button. Green LED lights up: the relay is fine. Red LED lights up: replace the relay.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0985\/9658\/5803\/files\/relatestrare-i-hand-storlek.jpg?v=1786380275\" alt=\"Relay tester held in the hand – compact and portable\" style=\"max-width:100%;border-radius:12px;display:block;margin:20px 0;\" loading=\"lazy\"\u003e\n\n\u003c!-- Section 2: How it works --\u003e\n\u003cp style=\"margin:34px 0 2px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#2C5A78;font-weight:600;\"\u003eHow it works\u003c\/p\u003e\n\u003ch2 style=\"margin:2px 0 10px;\"\u003eThree steps – from suspicion to answer\u003c\/h2\u003e\n\n\u003c!-- Step cards --\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:14px 0 8px;\"\u003e\n  \u003cdiv style=\"flex:1 1 180px;background:#F7F3EE;border:1px solid #E8E2D9;border-radius:12px;padding:18px 18px 16px;\"\u003e\n    \u003cdiv style=\"font-size:30px;font-weight:600;color:#2C5A78;line-height:1;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"font-weight:700;margin:8px 0 4px;\"\u003eConnect to the battery\u003c\/div\u003e\n    \u003cdiv style=\"font-size:14.5px;color:#6a645c;line-height:1.5;\"\u003eClip the red clamp to the positive terminal and the black one to the negative. The red LED lights up and the tester is ready.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"flex:1 1 180px;background:#F7F3EE;border:1px solid #E8E2D9;border-radius:12px;padding:18px 18px 16px;\"\u003e\n    \u003cdiv style=\"font-size:30px;font-weight:600;color:#2C5A78;line-height:1;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"font-weight:700;margin:8px 0 4px;\"\u003eSelect pin count and insert the relay\u003c\/div\u003e\n    \u003cdiv style=\"font-size:14.5px;color:#6a645c;line-height:1.5;\"\u003eSet the switch to 4PIN or 5PIN depending on the relay type. Insert the relay into the socket.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"flex:1 1 180px;background:#F7F3EE;border:1px solid #E8E2D9;border-radius:12px;padding:18px 18px 16px;\"\u003e\n    \u003cdiv style=\"font-size:30px;font-weight:600;color:#2C5A78;line-height:1;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"font-weight:700;margin:8px 0 4px;\"\u003ePress TEST and read the result\u003c\/div\u003e\n    \u003cdiv style=\"font-size:14.5px;color:#6a645c;line-height:1.5;\"\u003eGreen LED = the relay is fine. Red LED = the relay is faulty and needs replacing.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- Section 3: Specs --\u003e\n\u003cp style=\"margin:34px 0 2px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#2C5A78;font-weight:600;\"\u003eSpecifications\u003c\/p\u003e\n\u003ch2 style=\"margin:2px 0 10px;\"\u003eTechnical data\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14.5px;margin:12px 0;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"border-bottom:1px solid #E8E2D9;\"\u003e\n      \u003cth scope=\"row\" style=\"text-align:left;padding:10px 12px 10px 0;color:#1a1a1a;font-weight:600;width:40%;\"\u003eCompatible relays\u003c\/th\u003e\n      \u003ctd style=\"padding:10px 0;color:#6a645c;\"\u003e4-pin and 5-pin universal relays\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom:1px solid #E8E2D9;\"\u003e\n      \u003cth scope=\"row\" style=\"text-align:left;padding:10px 12px 10px 0;color:#1a1a1a;font-weight:600;\"\u003eOperating voltage\u003c\/th\u003e\n      \u003ctd style=\"padding:10px 0;color:#6a645c;\"\u003e11–15 V (12 V car battery)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom:1px solid #E8E2D9;\"\u003e\n      \u003cth scope=\"row\" style=\"text-align:left;padding:10px 12px 10px 0;color:#1a1a1a;font-weight:600;\"\u003eIndication\u003c\/th\u003e\n      \u003ctd style=\"padding:10px 0;color:#6a645c;\"\u003eGreen LED = fine, Red LED = faulty\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom:1px solid #E8E2D9;\"\u003e\n      \u003cth scope=\"row\" style=\"text-align:left;padding:10px 12px 10px 0;color:#1a1a1a;font-weight:600;\"\u003eAutomatic pin detection\u003c\/th\u003e\n      \u003ctd style=\"padding:10px 0;color:#6a645c;\"\u003eYes – identifies pin position and release time\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"text-align:left;padding:10px 12px 10px 0;color:#1a1a1a;font-weight:600;\"\u003eSuits\u003c\/th\u003e\n      \u003ctd style=\"padding:10px 0;color:#6a645c;\"\u003eMost passenger cars with a 12 V battery\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0985\/9658\/5803\/files\/relatestrare-flat-lay-verktyg.jpg?v=1786380276\" alt=\"Relay tester with cables and a relay on a workbench\" style=\"max-width:100%;border-radius:12px;display:block;margin:20px 0;\" loading=\"lazy\"\u003e\n\n\u003c!-- Variant guidance --\u003e\n\u003cp style=\"margin:34px 0 2px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#2C5A78;font-weight:600;\"\u003eChoose your model\u003c\/p\u003e\n\u003ch2 style=\"margin:2px 0 10px;\"\u003eStandard or Upgraded?\u003c\/h2\u003e\n\u003cul style=\"margin:10px 0 16px;padding-left:20px;color:#6a645c;line-height:1.8;font-size:14.5px;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e – full functionality for 4- and 5-pin relays with LED indication. Suits most car enthusiasts and home workshops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUpgraded\u003c\/strong\u003e – includes a transparent cover that lets you watch the relay's internal movement during testing. Good for anyone who wants to understand more about how a relay works.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- FAQ accordion --\u003e\n\u003cp style=\"margin:34px 0 2px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#2C5A78;font-weight:600;\"\u003eCommon questions\u003c\/p\u003e\n\u003ch2 style=\"margin:2px 0 16px;\"\u003eWhat you might be wondering\u003c\/h2\u003e\n\n\u003cdetails style=\"border-bottom:1px solid #E8E2D9;padding:2px 0;\"\u003e\u003csummary style=\"cursor:pointer;padding:14px 4px;font-weight:600;font-size:15.5px;\"\u003eWhich relays can I test with this unit?\u003c\/summary\u003e\u003cp style=\"margin:0 4px 16px;color:#6a645c;line-height:1.6;\"\u003eThe unit tests most universal relays with 4 or 5 pins – the ones used for the AC, starter motor, fuel pump, windows and similar functions. You set 4PIN or 5PIN with the switch before testing.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails style=\"border-bottom:1px solid #E8E2D9;padding:2px 0;\"\u003e\u003csummary style=\"cursor:pointer;padding:14px 4px;font-weight:600;font-size:15.5px;\"\u003eDo I have to remove the relay from the car to test it?\u003c\/summary\u003e\u003cp style=\"margin:0 4px 16px;color:#6a645c;line-height:1.6;\"\u003eYes, you take the relay out of its holder and insert it into the tester's socket. The crocodile clips connect directly to the car battery (11–15 V).\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails style=\"border-bottom:1px solid #E8E2D9;padding:2px 0;\"\u003e\u003csummary style=\"cursor:pointer;padding:14px 4px;font-weight:600;font-size:15.5px;\"\u003eWhat happens if I connect to the wrong terminal?\u003c\/summary\u003e\u003cp style=\"margin:0 4px 16px;color:#6a645c;line-height:1.6;\"\u003eThe clips are colour-coded and insulated for safety. Red clamp on the positive terminal and black on the negative. The red LED indicator confirms a correct connection before you can start the test.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails style=\"border-bottom:1px solid #E8E2D9;padding:2px 0;\"\u003e\u003csummary style=\"cursor:pointer;padding:14px 4px;font-weight:600;font-size:15.5px;\"\u003eWhat is the difference between the Standard and Upgraded models?\u003c\/summary\u003e\u003cp style=\"margin:0 4px 16px;color:#6a645c;line-height:1.6;\"\u003eThe Standard model gives full test functionality with an LED readout. The Upgraded model has a transparent plastic cover over the socket so you can visually follow the relay's mechanical movement during testing.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails style=\"border-bottom:1px solid #E8E2D9;padding:2px 0;\"\u003e\u003csummary style=\"cursor:pointer;padding:14px 4px;font-weight:600;font-size:15.5px;\"\u003eDoes it work on older cars and European vehicles?\u003c\/summary\u003e\u003cp style=\"margin:0 4px 16px;color:#6a645c;line-height:1.6;\"\u003eYes, the unit is compatible with all vehicles that use a standard 12 V battery (11–15 V) and universal relays with 4 or 5 pins. That covers most European passenger cars from the 1990s onwards.\u003c\/p\u003e\u003c\/details\u003e\n","brand":"Eklunds Tools","offers":[{"title":"Standard","offer_id":53296209559819,"sku":"NP-569598","price":299.0,"currency_code":"SEK","in_stock":true},{"title":"Upgraded","offer_id":53296209592587,"sku":"NP-569598","price":449.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/5525\/3771\/files\/relatestrare-hero-vit-bakgrund.jpg?v=1786472881","url":"https:\/\/eklundstools.com\/products\/car-relay-tester-portable-circuit-diagnostics","provider":"Eklunds Tools","version":"1.0","type":"link"}