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.
2010 Acura RLFACTORY OEM SERVICE PROCEDURE
Driver Position Memory DTCS
DRIVER POSITION MEMORY DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| B1802 | Power Seat Control Unit Internal (EEPROM) Error |
| B1805; B1808 | Power Seat Control Unit Lost Communication with Gauge Control Module (VSP/NE Message); Power Seat Control Unit Lost Communication with Gauge Control Module (A/T Message) |
| B1806; B1810 | Power Seat Control Unit Lost Communication with MICU (MICU Message); Power Seat Control Unit Lost Communication with MICU (MIRROR SW Message) |
| B1811; B1812 | Power Seat Control Unit Lost Communication with Driver's MPCS Unit (DOORSW Message); Power Seat Control Unit Lost Communication with Driver's MPCS Unit (MEM SW Message) |
| B1825 | Power Seat Slide Motor Pulse Error |
| B1826 | Power Seat Front Up-down Motor Pulse Error |
| B1827 | Power Seat Rear Up-down Motor Pulse Error |
| B1828 | Power Seat Recline Motor Pulse Error |
| B1829 | A/T P Signal and VSS Signal Mismatch |
| B1835 | Tilt/Telescopic Switch Signal Input Error |
| B1836 | Power Seat Position Sensor Circuit Short |
| B1837 | Driving Position Memory Recall Timeout |
| B1840 | Tilt Motor Pulse Error |
| B1841 | Telescopic Motor Pulse Error |
| B1842 | Power Tilt/Telescopic Position Sensor Power Supply Circuit (SVCC Line) Short |
| B1843 | Power Seat Control Unit Lost Communication with Power Tilt/Telescopic Steering Control Unit (UART Line) |
| B1844 | Power Seat Slide Switch Circuit Malfunction |
| B1845 | Power Seat Recline Switch Circuit Malfunction |
| B1846 | Power Seat Front Up-Down Switch Circuit Malfunction |
| B1847 | Power Seat Rear Up-Down Switch Circuit Malfunction |
| B2182 | Left Power Mirror Horizontal Sensor Signal Error |
| B2183 | Left Power Mirror Vertical Sensor Signal Error |
| B2184 | Right Power Mirror Horizontal Sensor Signal Error |
| B2185 | Right Power Mirror Vertical Sensor Signal Error |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.