Ametek 387 - 5.5.5 All J1708 Data Bus Gauge Pointers (Ex cept the SMC Pointer) Sweep 5-29

5.5.5 All J1708 Data Bus Gauge Pointers (Except the SMC Pointer) Sweep
Probable Cause - J1708 data bus is open between the Engine ECU and the Interface
Module.
Procedure: Follow the steps in Figure 5-15.
Model 387 Instrument System Service Manual
072-40245 B 5-29 Troubleshooting Procedures
Figure 5-15 All J1708 Data Bus Gauge Pointers (except SMC) Sweep