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