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System Operation

The seat backs are adjusted from the two different locations as follows:

  • The switches in the interior light housing receive operating power through the seat back relay when the ignition is switched on KL 15. The GM controls the operation of the relay and the switches provide the ground.

  • The switches in the “D” pillar receive KL 30 and allow seat back adjustment whenever the rear tailgate is opened to gain access to the switches.

  • The adjustment motors receive power and ground directly from the switches.

KL30

Backrest Relay

Backrest Adjustment Switch Left

Backrest Adjustment Switch Right

Backrest Adjustment Switch Left

Backrest Adjustment Switch Right

General Module

Motor, Backrest Left

Motor Backrest Right

M

M

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