Jaltest Test Multipin Kit (SKU 50003012) — $70

The Jaltest Test Multipin Kit (part 50003012, $70) is a set of test pins and probes for back-probing connectors and taking live measurements at harness connectors without damaging the connector body or weather seal. This is an essential tool for circuit-level electrical diagnostics on commercial trucks, construction equipment, and agricultural machinery — the right way to check sensor signal voltages, ground integrity, and supply circuits at a mated connector under load, without unplugging the sensor and affecting the readings.

Why Test Pins Matter for Diagnostic Work

When Jaltest flags a sensor fault or a communication error, the next step is verifying what is happening at the circuit level. That means measuring voltage at the sensor connector with the connector still mated — which requires thin probe tips that slide alongside the connector pins without breaking the weather seal or spreading the pin cavity. Standard multimeter probes are too large for most truck ECU and sensor connectors. A test multipin kit solves this problem.

Common Applications

• Back-probing engine sensor connectors (coolant temp, boost pressure, NOx sensors, etc.) to verify signal voltage under running conditions
• Checking ECU connector pin voltage without disconnecting the harness
• Verifying ground circuit integrity at harness connectors
• Testing continuity through sealed connectors on ABS wheel speed sensor harnesses
• Measuring voltage drop across harness sections while the circuit is live

Part of the Jaltest Tools Line

The Test Multipin Kit is part of Cojali's Jaltest Tools product range. It is designed to work alongside the JT2003 multimeter and JT2004 current clamp as part of a complete electrical diagnostic toolkit for professional technicians working with Jaltest software.

Key Details

• Part number: 50003012
• MSRP: $70.00
• Type: Test multipin kit (back-probe test pins and adapters)
• Part of: Jaltest Tools product line
• Pairs with: JT2003 digital multimeter (SKU 50002003)

Note: Detailed contents (pin sizes, pin types, quantity) are not published in the Jaltest 2025 pricelist. Contact us at 866-217-0063 for the current contents list.

Who Needs This

• Diesel technicians doing circuit-level electrical diagnostics on commercial trucks
• Shops using Jaltest who need to verify harness integrity at connector level
• Technicians working through wiring diagram-guided fault isolation on ECU and sensor circuits

Why Buy From OEM Diagnostic Tools?

We have been a Jaltest specialist since 2016 and stock the complete Jaltest Tools product line. Free shipping on every order, full warranty, and tech support at 866-217-0063. If you are putting together a complete electrical diagnostic toolkit to complement your Jaltest scanner, we can help you spec the right combination.

Call 866-217-0063 for quick answers and help!