INSTALLATION AR-ENGINE 2128978 - Caterpillar

The Engine Control Module (ECM) detects a high current condition (short circuit) during five consecutive attempts to energize the No. 2 injector.
The battery voltage is above 9 VDC for the last two seconds.System Response:The ECM will log the diagnostic code and the ECM will trigger a snapshot. The check engine lamp will illuminate while this diagnostic code is active. The Caterpillar Electronic Technician (ET) will show a "SHORT" during the "Injector Solenoid Test". The automatic "Cylinder Cutout Test" will not work.Possible Performance Effect:
Engine misfires
Low powerThe injector will not operate while this diagnostic code is active.Troubleshooting:Test Step 1. Perform the following diagnostic procedure: "Injector Solenoid Circuit - Test"Results:
OK - STOP