GM Service Manual Online
For 1990-2009 cars only

Cigar Lighter

Voltage is applied at all times to the cigar lighter through the Fuse 1 in the IP Fuse Block and the cigar lighter feed circuit. The cigar lighter has a heating element. Pushing the cigar lighter all of the way into the mounting completes the circuit to ground through the cigar lighter ground and heats the cigar lighter heating element. When the element is sufficiently heated, the cigar lighter is released from the mounting through thermal expansion of the mounting and the circuit is opened.

Auxiliary Power Drop Connector

An auxiliary power drop connector is also provided for the installation of various types of accessories that require a more permanent type of connection. The connector, located under the right hand side of the IP, contains two B+ circuits -- one supplied from Fuse 38 and the other is supplied through trhe Fuse 41 in the IP Fuse Block. A ground circuit is provided through ground G 205. A serial data communications circuit is also provided for equipment that requires the capability to communicate with control modules on the vehicle.

Voltage is applied at all times to the cigar lighter through the Fuse 1in the IP Fuse Block.

Voltage is supplied to the Auxiliary Power Drop Connector when the ignition switch is in ACCY or RUN through the Fuse 38 and applied at all times thought Fuse 41 from the IP Fuse Block.

Ground is also supplied to the auxiliary power drop connector.