2004/04/01 Caterpillar


Engine Harness Assembly (Bypass) Flashes Messenger When Communication Through the Service Connector is Not Possible {0779, 0781}

Usage:

3406E 1LW
Engine: Truck
3116 (S/N: 7SF1-UP; 7AG1-UP; 1NJ1-UP; 3RJ1-UP; 7HJ1-UP; 9CJ1-UP; 2BK1-UP; 9GK1-UP; 7JL1-UP; 8WL1-UP; CSM1-UP; 5RM1-UP; 2FR1-UP; 7HS1-UP; 5JZ1-UP)
3116 T (S/N: 9LN1-UP; 9YN1-UP)
3126B (S/N: BKD1-UP; 5GL1-UP; 8YL1-UP; 7AS1-UP)
3176 (S/N: 2YG1-UP; 7LG1-UP)
3176B (S/N: 9CK1-UP)
3406B (S/N: 7FB1-UP; 8TC1-UP; 5YG1-UP; 3ZJ1-UP; 5KJ1-UP; 4CK1-UP)
3406E (S/N: 5EK1-UP; 1MM1-UP; 2WS1-UP; 5DS1-UP; 6TS1-UP; 1LW1-UP)
3512B (S/N: 2GW1-UP)
C-10 (S/N: MBJ1-UP; 2PN1-UP; 3CS1-UP; 8YS1-UP)
C-12 (S/N: CPD1-UP; TME1-UP; MBL1-UP; 9SM1-UP; 1YN1-UP; 2KS1-UP; 9NS1-UP)
C-15 (S/N: EGH1-UP; MBN1-UP; 6NZ1-UP)
C-16 (S/N: 7CZ1-UP)
Commercial and Truck Engines:
3126E (S/N: G3E1-UP; DPF1-UP; LEF1-UP; CKM1-UP; CRP1-UP; HEP1-UP; 9SZ1-UP)



Illustration 1g01049340

The 239-9967 Engine Harness As (Bypass) allows the technician to flash Messenger with Cat ET and Winflash when communication through the service connector is not possible on the above engines. The service connector remains the source of power when the engine harness assembly (bypass) is used.

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