John Deere 4045 and 6068 OEM Diesel Engines — Instrument Panel Method for Retrieving Diagnostic Trouble Codes

Troubleshooting Instrument Panel Method for Retrieving Diagnostic Trouble Codes IMPORTANT: Care should be used during diagnostic procedures to avoid damaging the terminals of connectors, sensors, and actuators. Probes should not be poked into or around the terminals or damage will result. Probes should only be touched against the terminals to make measurements. Diagnosis of the Deere electronic control system on engines with Deere electronic instrument panel (shown) should be performed as follows: RG13287 –UN–30OCT03 1. Make sure all engine mechanical and other systems not related to the electronic control system are operating properly. NOTE:

Liquid Crystal Display [LCD] will always default to last menu item. If an active Diagnostic Trouble Code (DTC) is present, display will alternately flash from the hour meter reading to DTC(s). Trouble Code Display On Earlier Panel (Left) or Later Panel (Right) A—Diagnostic Gauge The code number will appear on the first line and the words SrvcCode on the second line. Active DTC(s) can be viewed by selecting “SrvcCode” on the menu and pressing both touch switches at the same time. Pressing touch switches (B) and (C) scrolls through various engine parameters and diagnostic trouble codes. 2. Read and record DTC(s) displayed on LCD of diagnostic gauge (A).

For procedure to access diagnostic trouble codes, refer to “Using Diagnostic Gauge to Access Engine Information”, earlier in this manual. 3. Go to the LISTING OF DIAGNOSTIC TROUBLE CODES (DTCs) later in this section, to interpret to the DTC(s) present. 4. Contact your nearest engine distributor or servicing dealer with a list of DTC(s) so that necessary repairs can be made. OURGP11,0000279 –19–24NOV03–1/1 45-22 021604 PN=216