1A
Table 1: No Dialogue with the ECM
Troubleshooting
Try the scan tool on another vehicle.
Check the ECM earth point.
Check:
• Check the connection between the scan tool and the data link connector
• Check the main and circuit fuses
Check the voltage (12 volts) between the following terminals (ignition switch turned ON):
• Between “G91-16” wire and “G91-4” wire of data link connector
• Between “G91-16” wire and “G91-5” wire of data link connector
Repair if necessary.
Check the insulation, continuity and absence of interference resistance of the connections:
• Between “E17-2” terminal of ECM connector and “C54-3” wire of main relay socket
• Between “C48-29” terminal of ECM connector and “C54-3” wire of main relay socket
• Between “C48-30” terminal of ECM connector and “C54-3” wire of main relay socket
• Between “E17-11” terminal of ECM connector and circuit fuse socket terminal
• Between “C48-24” terminal of ECM connector and “C54-1” wire of main relay socket (relay control)
• Between “E17-1” terminal of ECM connector and vehicle body ground
• Between “E17-6” terminal of ECM connector and vehicle body ground
• Between “E17-7” terminal of ECM connector and vehicle body ground
• Between “E17-8” terminal of ECM connector and vehicle body ground
• Between “E17-31” terminal of ECM connector and “G91-7” wire of data link connector (K-line)
Repair if necessary.