1. Remove the rear accessory socket..
2. Connect the tester probe to the position shown in the figure and verify that there is continuity.

If it cannot be verified, replace the rear accessory socket..
Front Accessory Socket Removal/Installation
Rear Accessory Socket Removal/InstallationBattery Removal/Installation [Skyactiv G 2.0]
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
1
Negative battery cable
(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0].)
2
Positive battery cable
3
...
Air Intake Actuator Inspection [Full Auto Air Conditioner]
1. Connect battery positive voltage to air intake actuator terminal B (or C),
connect terminal C (or B) to ground, and then verify that the air intake actuator
operates as shown in the table.
If the operation condition is not normal, replace the air intake actuator.
...
Awd Solenoid Inspection
1. Disconnect the negative battery cable.
2. Disconnect the AWD solenoid connector.
3. Measure resistance between AWD solenoid connector terminals A and B.
If the resistance is not within the specification, replace the coupling unit.
AWD solenoid resistance
2.2—2.7 oh ...