Passive Entry Module
U0100-00-Lost Communication With PCM
For a complete wiring diagram, refer to.
• When Monitored: Continuously when the ignition is on. The battery voltage between 10 and 16 Volts. Ignition Off Draw (IOD) fuse installed. Totally Integrated Power Module (TIPM) is configured correctly.
• Set Condition: Bus messages not received from the Powertrain Control Module (PCM) for approximately two to five seconds.
Test Step 1 - VERIFY THE DTC IS ACTIVE
• Make sure the IOD fuse is installed and the battery is fully charged before proceeding.
• Turn the ignition on.
• Using the scan tool, read the active DTCs.
Is the DTC active at this time?
Yes
• Refer to => Electrical Equipment DTC Based Diagnostics and perform the U0100-Lost Communication with PCM diagnostic procedure.
No
• Refer to => Non-DTC Based Diagnostics and perform the Stored Lost Communication DTCs diagnostic procedure. Stored Lost Communication DTCs