Pinpoint Test B : DTC (Diagnostic Trouble Code) P0563: Notes
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0563
Refer to Wiring Diagram Transmission Controls for schematic and connector information.
Normal Operation and Fault Conditions
The GSM requires an operating voltage between 9 and 16 volts. The GSM receives this voltage from the BCM and has a single ground circuit. Excessive resistance or an open in one or more of these circuits, a discharged battery or a inoperative charging system results in the GSM setting a DTC.
An overcharging condition in the charging system results in the GSM module setting a DTC. This DTC may also set in the GSM module due to battery charging or vehicle jump starting events.
GSM: DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P0563 | System Voltage High: Circuit Voltage Above Threshold | This DTC sets in continuous memory if the voltage supplied to the GSM module is above 16 volts for more than 3 seconds. |
Possible Sources
- Charging system concern
- GSM module