Kent-Moore J-43298 Chevy OEM Ignition Module Tester. Very good condition.

The PCM causes a spark by pulsing the IC circuit, signaling the IC module to coil and fire the spark plug. The type of IC PCM drive/circuit failure will be determined by EST codes, P1351 (High)-P1366 (Low). An open-circuit on the output side of the PCM driver will also set the EST code, however, an open on the input side will not. J-43298 Tester is used to check the output of the IC drivers at the IC module output connection. The IC module is designed to see certain voltage drop requirements across the output driver circuits when checking for a signal. A conventional test lamp may cause IC driver failure due to a wide variation of resistance available. J-43928-A allows a controlled current to flow through the driver circuit, which is realistic to the actual function of the IC module. The IC module must be removed from the cassette to connect the tool to the output side. Crank the engine to check that all LED's are flashing.

See pictures for details. Shipped with USPS First Class or Priority mail.