WJdiag Pro Jeep - Chrysler OBD2 Diagnostic and Programming 12.0 & 21.0

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WJdiag Pro & Free – Jeep Grand Cherokee WJ OBD2 Diagnostics​#

Android diagnostics for Jeep WJ/WG — WJdiag Free v21.0 & Pro v12.0: DTCs, live data, tests.

WJdiag (Pro & Free) — Android diagnostics for Jeep Grand Cherokee WJ/WG

What it does
WJdiag is a focused scan-tool app for Jeep Grand Cherokee WJ/WG (2002–2004), especially the 2.7 CRD. Paired with a quality Bluetooth ELM327 adapter, it reads/clears faults, streams live data with logging, runs module tests and exposes selected coding tasks that generic scanner apps often miss.

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Frequently Asked Questions​#

Which Windows version is recommended?
For maximum stability during ECU flashing and diagnostics, a clean installation of Windows 10 (64-bit) is recommended.
Is it compatible with J2534 PassThru?
Most modern software versions support standard J2534 interfaces like Scanmatik 2 Pro, OpenPort 2.0, and specific VCI adapters.

What's inside:

• Overview & screenshots
• Version history and compatibility
• Download link and setup notes

View full details and download — WJdiag Pro & Free – Jeep Grand Cherokee WJ OBD2 Diagnostics