1. Remove the front 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 front accessory socket..
Center Accessory Socket Removal/Installation
Front Accessory Socket Removal/InstallationExpansion Valve Removal/Installation
1. Disconnect the negative battery cable..
2. Discharge the refrigerant from the system..
CAUTION:
If moisture or foreign material enters the refrigeration cycle, cooling ability
will be lowered and abnormal noise will occur. Always immediately plug all open
fittings after removing ...
Starter Interlock Switch Removal/Installation [C66 M R]
1. Disconnect the negative battery cable..
2. Disconnect the starter interlock switch connector.
3. Remove the starter interlock using the following procedure:
a. Detach hook A in the direction of the arrow shown in the figure.
b. Slide the starter interlock switch in the direction of th ...
Lights On Indicator Light
Purpose
Notifies the user that the TNS or the headlights (LO) are on.
Function
Illuminates when the illumination conditions for the TNS, headlights (LO),
or parking lights are met.
When the instrument cluster receives the TNS malfunction signal sent via
CAN communic ...