OTC Circuit Tester: Circuit Tester, Electrical Circuits/Open Circuits/Shorts Grounds
The OTC Circuit Tester (MPN 3634) is a vehicle circuit tester for electrical circuits, open circuits, and shorts/grounds on 12V/6V systems. It features a stainless steel probe, (3) heavy-duty clips with positive…
SKU 3G-OTH-499698
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Product Description
The OTC Circuit Tester (MPN 3634) is a vehicle circuit tester for electrical circuits, open circuits, and shorts/grounds on 12V/6V systems. It features a stainless steel probe, (3) heavy-duty clips with positive soldered connections, and includes a 5 ft red twin clip coil cord lead.
Frequently Asked Questions
What is the OTC Circuit Tester 3634 used for?
The OTC Circuit Tester 3634 is used to diagnose electrical circuits, open circuits, and shorts/grounds on 12V and 6V vehicle systems. It helps automotive technicians quickly identify wiring faults without guesswork, using a stainless steel probe and heavy-duty clips for reliable contact.
What are the specifications of the OTC Circuit Tester 3634?
The OTC Circuit Tester 3634 is compatible with 12V and 6V systems. It features a stainless steel probe, three heavy-duty clips with positive soldered connections, and includes a 5 ft red twin clip coil cord lead. It is designed for testing electrical circuits, open circuits, and shorts/grounds.
Where to buy the OTC Circuit Tester 3634 worldwide?
3G Electric supplies the OTC Circuit Tester 3634 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this vehicle circuit tester.
How to use the OTC Circuit Tester 3634 for diagnosing shorts?
To diagnose shorts with the OTC Circuit Tester 3634, connect the heavy-duty clips to a known good ground and the circuit under test. Probe the wire or component with the stainless steel probe. If the tester lights up when it should not, a short to ground is present. Always follow vehicle service manual safety precautions.
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Common applications for OTCOTC Products
3G Electric supplies OTC vehicle circuit testers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.




