DESCRIPTION
The multiplex network door ECU controls the back door closer system functions. Back door closer system data and Diagnostic Trouble Codes (DTC) can be read through the Data Link Connector 3 (DLC3).
When the system seems to be malfunctioning, use the GTS to check for malfunctions and perform repairs.
CHECK DLC3
Check the DLC3.
INSPECT BATTERY VOLTAGE
Measure the battery voltage.
If the voltage is below 11 V, recharge or replace the battery.