270 MAINTENANCE AND LUBRICA TION

This a serial communication conforms the SAE/A T A J1708 Recommended Practice for Serial Data Communications Between Microcomputer Systems Heavy - Duty V ehicle (See the W arning

Radio Power Jack

The radio power jacks are located the dashboard the day cab, and the headliner the sleeper .

Power Jack (+) This avolt, switched battery connection. used power the s radio. protected a - amp circuit breaker and will supply power when the key the ACCESSOR Y position position.

Power Jack ( This a ground used a power return connection for the s

Body Builder Connectors

The Mack® Granite™ axle back chassis fers two optional body builder interface connectors located inside the frame rail the right - hand side the chassis behind the cab.

C0029856 Inside

the Frame Rail

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