FixVault

*No Response From Power Top Control Module: Notes

Fig 1: Power Top Control Module SCI, Power & Ground Circuits Schematic
GC0034941Courtesy of DAIMLERCHRYSLER CORP.
POSSIBLE CAUSES 
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
GROUND CIRCUIT OPEN
SCI TRANSMIT CIRCUIT OPEN
SCI TRANSMIT CIRCUIT SHORTED TO GROUND
SCI TRANSMIT CIRCUIT SHORTED TO VOLTAGE
POWER TOP CONTROL MODULE

For a complete Data Link Connector Circuit Diagram, (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES - SCHEMATICS AND DIAGRAMS) .