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.
2015 Acura TLX Base, 2.4L EngFACTORY OEM SERVICE PROCEDURE
Power Seat Control Unit DTCS
2015-17
| DTC | Description | DTC type |
|---|---|---|
| B1802 | Power seat control unit internal (EEPROM) error | Internal error |
| B1803 | Power mirror control unit internal (EEPROM) error | Internal error |
| B1825 | Slide pulse error (no change in pulse for 1 second) | Internal error |
| B1826 | Front height pulse error (no change in pulse for 1 second) | Internal error |
| B1827 | Rear height pulse error (no change in pulse for 1 second) | Internal error |
| B1828 | Recline pulse error (no change in pulse for 1 second) | Internal error |
| B1829 | AT-P signal and VSP signal mismatch | Signal error |
| B1836 | Power seat position sensor circuit short | Signal error |
| B1837 | Memory position calling timeout | Signal error |
| B1843 | LOCAL communication error | Loss of communication |
| B1844 | Power seat slide switch circuit malfunction | Signal error |
| B1845 | Power seat recline switch circuit malfunction | Signal error |
| B1846 | Power seat front up-down switch circuit malfunction | Signal error |
| B1847 | Power seat rear up-down switch circuit malfunction | Signal error |
| U0199 | Power seat control unit lost communication with door multiplex control unit (DRLockSW frame) | Loss of communication |
| U1280 | B-CAN communication bus line error (BUS-OFF) | Loss of communication |
| U1281 | Power seat control unit lost communication with MICU (MICU frame) | Loss of communication |
| U128D | Power seat control unit lost communication with gauge control module (VSP/NE frame) | Loss of communication |
2018-20
| DTC | Description | DTC type |
|---|---|---|
| B1802 | Power seat control unit internal (EEPROM) error | Internal error |
| B1803 | Power mirror control unit internal (EEPROM) error | Internal error |
| B1825 | Slide pulse error (no change in pulse for 1 second) | Internal error |
| B1826 | Front height pulse error (no change in pulse for 1 second) | Internal error |
| B1827 | Rear height pulse error (no change in pulse for 1 second) | Internal error |
| B1828 | Recline pulse error (no change in pulse for 1 second) | Internal error |
| B1829 | AT-P signal and VSP signal mismatch | Signal error |
| B1836 | Power seat position sensor circuit short | Signal error |
| B1837 | Memory position calling timeout | Signal error |
| B1843 | LOCAL communication error | Loss of communication |
| B1844 | Power seat slide switch circuit malfunction | Signal error |
| B1845 | Power seat recline switch circuit malfunction | Signal error |
| B1846 | Power seat front up-down switch circuit malfunction | Signal error |
| B1847 | Power seat rear up-down switch circuit malfunction | Signal error |
| U0199 | Power seat control unit lost communication with door multiplex control unit (DRLockSW frame) | Loss of communication |
| U1280 | B-CAN communication bus line error (BUS-OFF) | Loss of communication |
| U1281 | Power seat control unit lost communication with MICU (MICU frame) | Loss of communication |
| U128D | Power seat control unit lost communication with gauge control module (VSP/NE frame) | Loss of communication |
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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