HOSE 2270428 - Caterpillar

System Operation Description:Use this procedure if the diagnostic code in Table 1 is active.
Table 1
Diagnostic Codes Table    
Description    Conditions which Generate this Code    System Response    
22-13 "Engine Timing Calibration Not Performed"     A timing calibration is required for a new engine. A timing calibration is also required after a repair to the front gear train, the camshaft, or the crankshaft has been completed. The code may also become active after replacing an Electronic Control Module (ECM) that fails to communicate.     The code is logged.    
261-13 Engine Timing Calibration calibration required    
261-11 Engine Timing Offset fault     The wiring to the sensors may have the wrong polarity. There may be a mechanical problem with the front gear train.     The code is logged.    The ECM has the ability to compensate for mechanical differences between the Top Center (TC) of the flywheel and the TC of the timing gear on the camshaft.An "Engine Timing Calibration Not Performed" code is activated if a timing calibration is required.TC of the Flywheel - The ECM determines the TC of the flywheel via a signal from a magnetic transducer. The transducer is installed into the side of the engine block. The transducer creates a signal as a notch on a crankshaft counterweight rotates past the transducer.TC of the Timing Gear - The ECM determines the TC of the timing gear by signals from the engine speed/timing sensors.Any offset between the TC of the flywheel and the TC of the timing gear is stored into the memory of the ECM.Note: A timing calibration will not increase the available engine power.Table 2 lists the special tools that are required in order to perform this procedure.
Table 2
Required Special Tools    
Part Number    Description    
7X-1171     Transducer Adapter    
6V-2197     Transducer    
7X-1695     Cable As    
170-3519     Harness (1)    
( 1 ) This item is not required if the engine harness has a connector for timing calibration.Test Step 1. Install the Transducer Adapter
Remove the electrical power from the ECM.
Use the appropriate engine turning tool to put either the No. 1 piston or the No. 6 piston at top center. Refer to the Systems Operation/Testing and Adjusting.
Refer to Table 3. After the top center position has been located, rotate the crankshaft for the number of degrees that is applicable to your engine model. Be sure to rotate the crankshaft in the direction of rotation that is specified in the Table.
Table 3
Crankshaft Rotation    
Engine Model     Number of Degrees    Direction of Rotation    
C7     100