What Does B2192 Mean?
B2192 indicates the Body Control Module (BCM) has detected an abnormal electrical condition in the power seat switch circuit. This could be an open circuit, short to ground, short to power, or high resistance in the wiring or switch assembly that controls the power seat movement. The BCM monitors the switch inputs and sets this code when voltage or resistance values fall outside expected parameters.
Common Causes
45%
Faulty power seat switch assembly with internal contact failure or worn/broken switch mechanism
30%
Damaged or corroded wiring harness connector at the power seat switch or BCM connection points
15%
Open or short circuit in wiring between power seat switch and BCM or ground connection
10%
Failed Body Control Module with faulty input circuit processing
Diagnostic Steps
1
Step 1: Perform visual inspection of power seat switch assembly and all accessible wiring harness connections for physical damage, corrosion, water intrusion, or loose connections. Wiggle connectors while monitoring live data for intermittent faults.
2
Step 2: Disconnect the power seat switch connector and use a digital multimeter to check for proper reference voltage (typically 5V or 12V depending on vehicle) at the BCM output wire with ignition on. Verify ground circuit has less than 0.5 ohms resistance to chassis ground.
3
Step 3: Test the power seat switch resistance values across all switch positions using an ohmmeter with the switch disconnected. Compare readings to manufacturer specifications (typically 100-5000 ohms depending on position). Check for open circuits or infinite resistance indicating internal switch failure.
4
Step 4: Inspect wiring harness routing under the seat for pinched, chafed, or damaged wires from seat track movement. Check for continuity between BCM connector and switch connector on all circuit wires with all connectors disconnected.
5
Step 5: If all wiring and switch test good, perform BCM functionality test by substituting a known-good power seat switch or using a resistor box to simulate switch inputs. Monitor BCM response through live data to confirm BCM input circuit operation.
6
Step 6: Clear codes, operate power seat through all functions, and verify repair by checking for code reoccurrence and proper seat operation in all directions.
Estimated Repair Cost
$75 - $450
Parts + labor, varies by vehicle and location
B2192 indicates the Body Control Module (BCM) has detected an abnormal electrical condition in the power seat switch circuit. This could be an open circuit, short to ground, short to power, or high resistance in the wiring or switch assembly that controls the power seat movement. The BCM monitors th...
The most common cause of B2192 (Power Seat Switch Circuit) is: Faulty power seat switch assembly with internal contact failure or worn/broken switch mechanism
Typical repair costs for B2192 range from $75 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive as this only affects power seat adjustment functionality. Repair can be scheduled at convenience, though driver may be unable to adjust seat position for optimal comfort and control reach.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2192 to identify the root cause.
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Quick Info
Category
Body
System
Body Control and Comfort System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
