Interior Lighting

INTERIOR LIGHTING WITH/WITHOUT TIME DELAY
For certain markets and/or models, the interior lighting circuit incorporates relay 151 which delays switching off the interior lighting for a certain time.

The interior lighting and time-delay relay are supplied with current via fuse 16, the relay is also supplied from the +15 circuit.

The interior lighting comes on when a door is opened. Door switch 54 closes and relay 151 operates because its T terminal is then grounded.

When the door is closed the door switch opens and the circuit is broken. Since the relay's time-delay circuit maintains the ground connection across contacts T and 31,the interior lighting remains on.

The time delay is about 15 seconds, but will be interrupted if the ignition switch is turned to the Drive position. Relay terminals 15 and 30 will then both be supplied with positive current, at which point the relay releases and the ground circuit across contacts T and 31 is broken.