Passive Entry Module (PEM)

B21DD-84-SYSTEM VOLTAGE - SIGNAL BELOW ALLOWABLE RANGE







- When Monitored:
The first 10 seconds after the ignition is turned to run.

- Set Condition:
When the Totally Integrated Power Module (TIPM) sends a message that the system voltage is below 8.0 volts, this code will set.





CHECK POWERTRAIN CONTROL MODULE (PCM) DTCs
1. With the scan tool, read PCM DTCs.

Are there any PCM Charging or Battery DTCs present?

No

- This code is for information only. At some time there was a low battery system voltage. Check the battery and charging system.

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure.