SPRING 6B6479 - Caterpillar

Engine:
C15 (S/N: SDP1-UP)
Truck Engine News SEBD6830, November 2009, "An Update to the Wiring Harness of the Engine Brake on Some C15 Truck Engines Is Now Used". Disregard this article. Please see the article that follows.Description of Change: The update to the wiring harness is designed for extended service life.Adaptable To: Procedure to Update the Wiring Harness
If the codes from Table 1 are displayed, then inspect the harness and follow the procedure below.Refer to Illustration 1 through Illustration 4 for examples for the type of damages that may occur. If damage has occurred, then replace the harness and follow the procedure that is outlined below.
Table 1
Code Chart    
Code     Code Description    
2950-5     Engine Intake Valve actuator #1 : Current Below Normal    
2950-6     Engine Intake Valve Acuator #1 : Current Above Normal    
2950-7     Engine Intake Valve Acuator #1 : Not Responding Properly    
2951-5     Engine Intake Valve Acuator #2 : Current Below Normal    
2951-6     Engine Intake Valve Acuator #2 : Current Above Normal    
2951-7     Engine Intake Valve Acuator #2 : Not Responding Properly    
2952-5     Engine Intake Valve Acuator #3 : Current Below Normal    
2952-6     Engine Intake Valve Acuator #3 : Current Above Normal    
2952-7     Engine Intake Valve Acuator #3 : Not Responding Properly    
2953-5     Engine Intake Valve Acuator #4 : Current Below Normal    
2953-6     Engine Intake Valve Acuator #4 : Current Above Normal    
2953-7     Engine Intake Valve Acuator #4 : Not Responding Properly    
2954-5     Engine Intake Valve Acuator #5 : Current Below Normal    
2954-6     Engine Intake Valve Acuator #5 : Current Above Normal    
2954-7     Engine Intake Valve Acuator #5 : Not Responding Properly    
2955-5     Engine Intake Valve Acuator #6 : Current Below Normal    
2955-6     Engine Intake Valve Acuator #6 : Current Above Normal    
2955-7     Engine Intake Valve Acuator #6 : Not Responding Properly    
Illustration 1 g01999921