Right Seat Back Heater Circuit
Table of contents
B2180 CADILLAC Possible Causes
- Faulty Right Seat Back Heater Element
- Right Seat Back Heater Element harness is open or shorted
- Right Seat Back Heater Element circuit poor electrical connection
- Faulty Memory Seat Module (MSM)
How do I fix code B2180 CADILLAC?
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.
Tech Notes
- B2180 04: Right Seat Back Heater Circuit Open
- B2180 0A: Right Seat Back Heater Circuit Rate of Change Below Threshold
- B2180 0B: Right Seat Back Heater Circuit Current Above Threshold
- B2180 0C: Right Seat Back Heater Circuit Current Below Threshold
- B2180 0D: Right Seat Back Heater Circuit Resistance Above Threshold
- B2180 0E: Right Seat Back Heater Circuit Resistance Below Threshold
- B2180 1F: Right Seat Back Heater Circuit Intermittent
Cost of diagnosing the B2180 CADILLAC code
The cost of diagnosing the B2180 CADILLAC 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)
B2180 CADILLAC Description
When the heated seat function is active, the Memory Seat Module (MSM) supplies battery voltage through the element supply voltage circuit to the seat heater elements. The module controls the seat temperature by providing a PWM ground through the heated seat element control circuit to the seat heater elements. The module then monitors the current flow through the heating element and the temperature sensor rate of change to verify correct operation. The OBDII code sets when the module detects that the set point temperature is not to factory specifications.