Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Acura RLFACTORY OEM SERVICE PROCEDURE
Driver Position Memory DTCS
DRIVER POSITION MEMORY DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B1802 | Power Seat Control Unit Failure |
| DTC B1805 | Power Seat Control Unit Lost Communication With Gauge Control Module (VSP/NE Message) |
| DTC B1808 | Power Seat Control Unit Lost Communication With Gauge Control Module (A/T Message) |
| DTC B1806 | Power Seat Control Unit Lost Communication With MICU |
| DTC B1810 | Power Seat Control Unit Lost Communication With MICU (Mirror switch message) |
| DTC B1811 | Power Seat Control Unit Lost Communication With Driver's MPCS Unit (Door switch message) |
| DTC B1812 | Power Seat Control Unit Lost Communication With Driver's MPCS Unit (Memory switch message) |
| DTC B1825 | Slide Pulse Error(No change in pulse for 1 second) |
| DTC B1826 | Front Height Pulse Error(No change in pulse for 1 second) |
| DTC B1827 | Rear Height Pulse Error(No change in pulse for 1 second) |
| DTC B1828 | Driver Seat Recline Motor Pulse Error |
| DTC B1829 | AT-P Signal and VSP Signal Have an Illegal Combination |
| DTC B1835 | Steering Column Manual Switch Malfunction |
| DTC B1836 | Power Seat Position Sensor Circuit Short |
| DTC B1837 | Memory Position Calling Timeout |
| DTC B1840 | Steering Column Tilt Pulse Failure |
| DTC B1841 | Steering Column Telesco Pulse Failure |
| DTC B1842 | ETS Sensor Malfunction |
| DTC B1843 | UART Communication Error |
| DTC B1844 | Power Seat Slide Switch Circuit Malfunction |
| DTC B1845 | Power Seat Recline Switch Circuit Malfunction |
| DTC B1846 | Power Seat Front Up-Down Switch Circuit Malfunction |
| DTC B1847 | Power Seat Rear Up-Down Switch Circuit Malfunction |
| DTC B2182 | Driver's Door Mirror Motor Horizontal Sensor Input Error |
| DTC B2183 | Driver's Door Mirror Motor Vertical Sensor Input Error |
| DTC B2184 | Assistant's Door Mirror Motor Horizontal Sensor Input Error |
| DTC B2185 | Assistant's Door Mirror Motor Vertical Sensor Input Error |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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