Functional Description - Lumbar Motor

When the lumbar control switch is actuated:

• A battery feed and a ground path are applied through the switch contacts to the power lumbar support adjuster motor.
• The lumbar support adjuster motor operates the lumbar support adjuster mechanism through its drive unit in the selected direction until the switch is released, or until the travel limit of the adjuster is reached.
• When the switch is moved in the opposite direction, the battery feed and ground path to the motor are reversed through the switch contacts. This causes the power lumbar support adjuster motor to run in the opposite direction.

The lumbar control switch should NOT be held applied in any direction after the adjuster has reached its travel limit. The power lumbar support adjuster motor contains a self-resetting circuit breaker to protect it from overload. However, consecutive or frequent resetting of the circuit breaker may result in motor damage.