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 System (DPMS)
- Component Location Index
- Circuit Diagram - Power Seat
- Circuit Diagram - Power Mirror
- Circuit Diagram - Power Tilt/Telescopic Steering
- System Description
- DTC Troubleshooting
- 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
- System Input Test and Function Test
- Power Seat Control Unit Input Test/Replacement
- Power Mirror Circuit Input Test
- Power Tilt/Telescopic Steering Control Unit Input Test/Replacement
- Driving Position Memory Switch Test/Replacement
- Power Seat Adjustment Switch Test/Replacement
- Driver's Power Seat Motor Test
- Power Tilt/Telescopic Steering Switch Test/Replacement
- Power Tilt/Telescopic Steering Motor Test
Factory Service Tools
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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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