Driver Seat Motor Lumbar Circuit
Table of contents
B1790 SATURN Possible Causes
- Faulty Driver Seat Motor Lumbar
- Driver Seat Motor Lumbar harness is open or shorted
- Driver Seat Motor Lumbar circuit poor electrical connection
- Faulty Driver Seat Module (DSM)
How do I fix code B1790 SATURN?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B1790 SATURN code
The cost of diagnosing the B1790 SATURN code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1790 SATURN Description
The seat adjuster motors are controlled by the Driver Seat Module (DSM) through the adjuster motor control circuits. In an inactive state both of the motor control circuits are grounded within the DSM. In an active state the DSM switches the appropriate motor control circuit to battery positive voltage. The direction of the adjuster motor rotation is determined by which of the motor control circuits is switched to battery positive voltage while the other remains grounded. During adjuster motor operation the DSM also monitors the current flow through the motor control circuits.