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Driver Position Memory System (dpms) (v6) Acura TSX II

Seats 67 illustrations ~11560 words

Scheme 116

Scheme 116: Component Location Index
Scheme 116: Component Location Index

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Scheme 117

System Description

The driver's seat has a memory feature. All the adjustments can be memorized by pressing the SET button on the driving position memory switch, and then pressing one of two position buttons within 5 seconds. Pressing the appropriate position button will move the seat to the memorized positions.

This system is integrated with the multiplex integrated control system, and has 9 wake-up and sleep modes. All digital signals are sent via shared B-CAN and UART communication lines. For more information about communication line and wake-up/sleep mode, refer to the Multiplex Integrated Control System Description (see SYSTEM DESCRIPTION ).

Disconnecting the battery will cancel the memorized positions.

Memorizing a Seat Position

Move the seat to the desired position. Turn the ignition switch to ON (II).

Press and hold the SET button on the driver's position memory switch. A single beep will be heard and both of the green LED will begin to flash. Press No. 1 or No. 2 to match the remote that is to be used. There will be two more beeps confirming that the seat positions have been memorized. The LED will remain lit, unless the seat is moved from the memorized position.

Memorized Position Recall with the Remotes

Make sure that the remotes are LINKED. Press and hold the LOCK and UNLOCK button at the same time. The red LED on the remote will flash ONE time when the remote has been LINKED and will flash TWO times when the remote has been UNLINKED. After the seat position has been memorized, the seat will move to the position when the appropriate remote UNLOCK is pressed and the driver's door is opened. When the seat gets to the memorized position, the green LED corresponding with that remote will stay lit until the position is changed or the key is turned to LOCK (0).

Scheme 118

Scheme 118: Memorized Position Recall with the Remotes
Scheme 118: Memorized Position Recall with the Remotes

Power Seat Position Sensors

Each motor has a sensor that detects motor rotation and sends a pulse to the power seat control unit when the motor rotates. The control unit stores the number of pulses in its memory, and the seat position is memorized.

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Scheme 119: Circuit Diagram
Scheme 119: Circuit Diagram

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Scheme 122

DTC B1802: Power Seat Control Unit Error

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Wait for at least 6 seconds.
  4. Check for DTCs with the HDS. Is DTC B1802 indicated? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Intermittent failure, the system is OK at this time.

DTC B1825: Slide Pulse Error (No Change in Pulse for 1 Second)

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 123

Scheme 123: DTC B1825: Slide Pulse Error (No Change in Pulse for 1 Second)
Scheme 123: DTC B1825: Slide Pulse Error (No Change in Pulse for 1 Second)

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  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the power seat adjustment switch for several seconds in each direction. NOTE: DTC B1825 is stored when the slide switch is operated more than 1 second after the seat moves to the most forward or most rearward position, even when the system is OK.
  4. Check for DTCs with the HDS. Is DTC B1825 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Clear the DTCs with the HDS. Is DTC B1836 also indicated? YES -Go to the DTC B1836 troubleshooting (see «DTC B1836: POWER SEAT POSITION SENSOR CIRCUIT SHORT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__dtc-b1836-power-seat-position-sensor) ). NO -Go to step 6.
  6. Clear the DTCs with the HDS. Are DTCs B1826, B1827, and/or B1828 also indicated? YES -Go to step 17. NO -Go to step 7.
  7. Turn the ignition switch to LOCK (0), and then back to ON (II).
  8. Operate the slide switch for 2 seconds, and check the slide motor operation. Does the slide motor run smoothly? YES -Go to step 9. NO -Go to step 24.
  9. Turn the ignition switch to LOCK (0).
  10. Disconnect power seat control unit connector A (40P).
  11. Disconnect the slide motor/position sensor 5P connector.
  12. Check for continuity between power seat control unit connector A (40P) terminals No. 29 and No. 31 and slide motor/position sensor 5P connector terminals No. 3 and No. 4 respectively. Is there continuity? YES -Go to step 13. NO -Repair an open or high resistance in the wire(s).
  13. Check for continuity between body ground and power seat control unit connector A (40P) terminal No. 31. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 14.
  14. Reconnect power seat control unit connector A (40P).
  15. Turn the ignition switch to ON (II).
  16. Measure the voltage between slide motor/position sensor 5P connector terminals No. 4 (+) and No. 3 (-). Is there about 5 V? YES -Replace the slide motor/position sensor (see «FRONT SEAT SLIDE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-slide-motor-replacement) ). NO -If there is no voltage, replace the power seat control unit (see «Power Seat Control Unit Input Test/Replacement»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). If there is battery voltage, repair a short in the wire (sensor line).
  17. Turn the ignition switch to LOCK (0).
  18. Disconnect power seat control unit connector A (40P).
  19. Disconnect the slide motor/position sensor 5P connector.
  20. Check for continuity between power seat control unit connector A (40P) terminals No. 15 and No. 29 and slide motor/position sensor 5P connector terminals No. 2 and No. 3 respectively. Is there continuity? YES -Go to step 21. NO -Repair an open or high resistance in the wire(s).
  21. Reconnect power seat control unit connector A (40P).
  22. Turn the ignition switch to ON (II).
  23. Measure the voltage between power seat control unit connector A (40P) terminals No. 15 and No. 29. Is there battery voltage when the slide switch is operated? YES -Replace the slide motor/position sensor (see «FRONT SEAT SLIDE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-slide-motor-replacement) ). NO -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ).
  24. Turn the ignition switch to LOCK (0).
  25. Check the No. 19 (20 A) fuse in the driver's under-dash fuse/relay box. Is the fuse OK? YES -Go to step 26. NO -Replace the fuse. If the fuse blows again, repair a short to ground in the No. 19 (20 A) fuse circuit.
  26. Turn the ignition switch to ON (II).
  27. Measure the voltage between body ground and power seat control unit connector B (18P) terminal No. 8. (Scheme 128): Measuring Voltage Between Body Ground & Power Seat Control Unit Connector B (18P) Terminal No. 8 Is there less than 0.2 V? YES -Go to step 28. NO -Repair an open or high resistance in the wire between the driver's under-dash fuse/relay box and the power seat control unit.
  28. Measure the voltage between body ground and power seat control unit connector B (18P) terminal No.18, when the slide switch is operated. Is there less than 0.2 V? YES -Go to step 29. NO -Repair an open or high resistance in the ground wire or poor ground (G701).
  29. Turn the ignition switch to LOCK (0).
  30. Disconnect power seat control unit connector B (18P).
  31. Disconnect the slide motor/position sensor 5P connector.
  32. Check for continuity between power seat control unit connector B(18P) terminals No. 7 and No. 17 and slide motor/position sensor 5P connector terminals No. 1 and No. 5 respectively. Is there continuity? YES -Go to step 33. NO -Repair an open or high resistance in the wire.
  33. Check for continuity between body ground and slide motor/position sensor 5P connector terminals No. 1 and No. 5 individually. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 34.
  34. Test the slide motor (see «DRIVER'S POWER SEAT MOTOR TEST»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__drivers-power-seat-motor-test) ). Is the motor OK? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Replace the slide motor/position sensor (see «FRONT SEAT SLIDE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-slide-motor-replacement) ).

DTC B1826: Front Height Pulse Error (No Change in Pulse for 1 Second)

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 132

Scheme 132: DTC B1826: Front Height Pulse Error (No Change in Pulse for 1 Second)
Scheme 132: DTC B1826: Front Height Pulse Error (No Change in Pulse for 1 Second)

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Scheme 139
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the power seat adjustment switch in all directions for more than 1 second each. NOTE: DTC B1826 is stored when the front up-down switch is operated more than 1 second after the seat moves to the most up or most down position, even when the system is OK.
  4. Check for DTCs with the HDS. Is DTC B1826 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Clear the DTCs with the HDS. Is DTC B1836 also indicated? YES -Go to the DTC B1836 troubleshooting (see «DTC B1836: POWER SEAT POSITION SENSOR CIRCUIT SHORT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__dtc-b1836-power-seat-position-sensor) ). NO -Go to step 6.
  6. Clear the DTCs with the HDS. Are DTCs B1825, B1827, and/or B1828 also indicated? YES -Go to step 17. NO -Go to step 7.
  7. Turn the ignition switch to LOCK (0), and then back to ON (II).
  8. Operate the front up-down switch for 2 seconds, and check the front up-down motor operation. Does the front up-down motor run smoothly? YES -Go to step 9. NO -Go to step 24.
  9. Turn the ignition switch to LOCK (0).
  10. Disconnect power seat control unit connector A (40P).
  11. Disconnect the front up-down motor/position sensor 5P connector.
  12. Check for continuity between power seat control unit connector A (40P) terminals No. 12 and No. 29 and front up-down motor/position sensor 5P connector terminals No. 5 and No. 4 respectively. Is there continuity? YES -Go to step 13. NO -Repair an open or high resistance in the wire.
  13. Check for continuity between body ground and power seat control unit connector A (40P) terminal No. 12. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 14.
  14. Reconnect power seat control unit connector A (40P).
  15. Turn the ignition switch to ON (II).
  16. Measure the voltage between front up-down motor/position sensor 5P connector terminals No. 5 (+) and No. 4(-). Is there about 5 V? YES -Replace the front up-down motor/position sensor (see «FRONT SEAT UP-DOWN MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6) ). NO -If there is no voltage, replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). If there is battery voltage, repair a short in the wire (sensor line).
  17. Turn the ignition switch to LOCK (0).
  18. Disconnect power seat control unit connector A (40P).
  19. Disconnect the front up-down motor/position sensor 5P connector.
  20. Check for continuity between power seat control unit connector A (40P) terminals No. 15 and No. 29 and front up-down motor/position sensor 5P connector terminals No. 3 and No. 4 respectively. Is there continuity? YES -Go to step 21. NO -Repair an open or high resistance in the wire.
  21. Reconnect power seat control unit connector A (40P).
  22. Turn the ignition switch to ON (II).
  23. Measure the voltage between power seat control unit connector A (40P) terminals No. 15 and No. 29. Is there battery voltage when the front up-down switch is operated? YES -Replace the front up-down motor/position sensor (see «FRONT SEAT UP-DOWN MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6) ). NO -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ).
  24. Turn the ignition switch to LOCK (0).
  25. Check the No. 19 (20 A) fuse in the driver's under-dash fuse/relay box. Is the fuse OK? YES -Go to step 26. NO -Replace the fuse. If the fuse blows again, repair a short to ground in the No. 19 (20 A) fuse circuit.
  26. Turn the ignition switch to ON (II).
  27. Measure the voltage between body ground and power seat control unit connector B (18P) terminal No. 8. see scheme 22: Measuring Voltage Between Body Ground & Power Seat Control Unit Connector B (18P) Terminal No. 8 Is there less than 0.2 V? YES -Go to step 28. NO -Repair an open or high resistance in the wire between the driver's under-dash fuse/relay box and the power seat control unit.
  28. Measure the voltage between body ground and power seat control unit connector B (18P) terminal No. 18, when the front up-down switch is operated. Is there less than 0.2 V? YES -Go to step 29. NO -Repair an open or high resistance in the ground wire or poor ground (G701).
  29. Turn the ignition switch to LOCK (0).
  30. Disconnect power seat control unit connector B (18P).
  31. Disconnect the front up-down motor/position sensor 5P connector.
  32. Check for continuity between power seat control unit connector B(18P) terminals No. 6 and No. 16 and front up-down motor/position sensor 5P connector terminals No. 2 and No. 1 respectively. Is there continuity? YES -Go to step 33. NO -Repair an open or high resistance in the wire(s).
  33. Check for continuity between body ground and front up-down motor/position sensor 5P connector terminals No. 1 and No. 2 individually. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 34.
  34. Test the front up-down motor (see «DRIVER'S POWER SEAT MOTOR TEST»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__drivers-power-seat-motor-test) ). Is the motor OK? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Replace the front up-down motor/position sensor (see «FRONT SEAT UP-DOWN MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6) ).

DTC B1827: Rear Height Pulse Error (No Change in Pulse for 1 Second)

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 140

Scheme 140: DTC B1827: Rear Height Pulse Error (No Change in Pulse for 1 Second)
Scheme 140: DTC B1827: Rear Height Pulse Error (No Change in Pulse for 1 Second)

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  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the power seat adjustment switch for several seconds in each direction. NOTE: DTC B1827 is stored when the rear up-down switch is operated more than 1 second after the seat moves to the most up or most down position, even when the system is OK.
  4. Check for DTCs with the HDS. Is DTC B1827 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Clear the DTCs with the HDS. Is DTC B1836 also indicated? YES -Go to the DTC B1836 troubleshooting (see «DTC B1836: POWER SEAT POSITION SENSOR CIRCUIT SHORT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__dtc-b1836-power-seat-position-sensor) ). NO -Go to step 6.
  6. Clear the DTCs with the HDS. Are DTCs B1825, B1826, and/or B1828 also indicated? YES -Go to step 17. NO -Go to step 7.
  7. Turn the ignition switch to LOCK (0), and then back to ON (II).
  8. Operate the rear up-down switch for 2 seconds, and check the rear up-down motor operation. Does the rear up-down motor run smoothly? YES -Go to step 9. NO -Go to step 24.
  9. Turn the ignition switch to LOCK (0).
  10. Disconnect power seat control unit connector B (40P).
  11. Disconnect the rear up-down motor/position sensor 6P connector.
  12. Check for continuity between power seat control unit connector B (40P) terminals No. 13 and No. 29 and rear up-down motor/position sensor 6P connector terminals No. 1 and No. 3 respectively. []: 2-door Is there continuity? YES -Go to step 13. NO -Repair an open or high resistance in the wire(s).
  13. Check for continuity between body ground and power seat control unit connector B (40P) terminal No. 13. []: 2-door Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 14.
  14. Reconnect power seat control unit connector B (40P).
  15. Turn the ignition switch to ON (II).
  16. Measure the voltage between rear up-down motor/position sensor 6P connector terminals No. 1 (+) and No. 3 (-). Is there about 5 V? YES -Faulty rear up-down motor/position sensor; replace the seat frame assembly (see «DRIVER'S SEAT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__drivers-seat) ). NO -If there is no voltage, replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). If there is battery voltage, repair a short in the wire (sensor line).
  17. Turn the ignition switch to LOCK (0).
  18. Disconnect power seat control unit connector A (40P).
  19. Disconnect the rear up-down motor/position sensor 6P connector.
  20. Check for continuity between power seat control unit connector B (40P) terminals No. 15 and No. 29 and rear up-down motor/position sensor 6P connector terminals No. 4 and No. 3 respectively. []: 2-door Is there continuity? YES -Go to step 21. NO -Repair an open or high resistance in the wire(s).
  21. Reconnect power seat control unit connector A (40P).
  22. Turn the ignition switch to ON (II).
  23. Measure the voltage between power seat control unit connector B (40P) terminals No. 15 and No. 29. []: 2-door Is there battery voltage when the rear up-down switch is operated? YES -Faulty rear up-down motor/position sensor; replace the seat frame assembly (see «DRIVER'S SEAT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__drivers-seat) ). NO -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ).
  24. Turn the ignition switch to LOCK (0).
  25. Check the No. 21 (20 A) fuse in the driver's under-dash fuse/relay box. Is the fuse OK? YES -Go to step 26. NO -Replace the fuse. If the fuse blows again, repair the short to ground on the No. 21 (20 A) fuse circuit.
  26. Turn the ignition switch to ON (II).
  27. Measure the voltage between body ground and power seat control unit connector A (18P) terminal No. 1. Is there battery voltage? YES -Go to step 28. NO -Repair an open or high resistance in the wire between the driver's under-dash fuse/relay box and the power seat control unit.
  28. Measure the voltage between body ground and power seat control unit connector A (18P) terminal No. 4 when operating the rear up-down switch. (Scheme 146): Measuring Voltage Between Body Ground And Power Seat Control Unit Connector A (18P) Terminal No. 4 When Operating Rear Up-Down Switch Is there 0.2 V or more? YES -Repair an open or high resistance in the wire between the power seat control unit and body ground (G701). NO -Go to step 29.
  29. Turn the ignition switch to LOCK (0).
  30. Disconnect power seat control unit connector A (18P).
  31. Disconnect the rear up-down motor/position sensor 6P connector.
  32. Check for continuity between power seat control unit connector A (18P) terminals No. 2 and No. 10 and rear up-down motor/position sensor 6P connector terminals No. 5 and No. 6 respectively. []: 2-door Is there continuity? YES -Go to step 33. NO -Repair an open or high resistance in the wire(s).
  33. Check for continuity between body ground and rear up-down motor/position sensor 6P connector terminals No. 5 and No. 6 individually. Is there continuity? YES -Repair a short to ground in the wire(s). NO -Go to step 34.
  34. Test the rear up-down motor (see «DRIVER'S POWER SEAT MOTOR TEST»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__drivers-power-seat-motor-test) ). Is the motor OK? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Replace the rear up-down motor/position sensor (see «REAR UP-DOWN MOTOR»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__rear-up-down-motor) ).

DTC B1828: Driver's Seat Recline Motor Pulse Error

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

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Scheme 149: DTC B1828: Driver's Seat Recline Motor Pulse Error
Scheme 149: DTC B1828: Driver's Seat Recline Motor Pulse Error

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  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the power seat adjustment switch in all directions for more than 1 second each. NOTE: DTC B1828 is stored when the recline switch is operated more than 1 second after the seat moves to the most forward or most backward position, even when the system is OK.
  4. Check for DTCs with the HDS. Is DTC B1828 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Clear the DTCs with the HDS. Is DTC B1836 also indicated? YES -Go to the DTC B1836 troubleshooting (see «DTC B1836: POWER SEAT POSITION SENSOR CIRCUIT SHORT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__dtc-b1836-power-seat-position-sensor) ). NO -Go to step 6 .
  6. Clear the DTCs with the HDS. Are DTCs B1825, B1826, and/or B1827 also indicated? YES -Go to step 17 . NO -Go to step 7 .
  7. Turn the ignition switch to LOCK (0), and then back to ON (II).
  8. Operate the recline switch for 2 seconds, and check the recline motor operation. Does the recline motor run smoothly? YES -Go to step 9 . NO -Go to step 24 .
  9. Turn the ignition switch to LOCK (0).
  10. Disconnect power seat control unit connector B (40P).
  11. Disconnect the recline motor/position sensor 5P connector.
  12. Check for continuity between power seat control unit connector B (40P) terminals No. 10 and No. 29 and recline motor/position sensor 5P connector terminals No. 5 and No. 4 respectively. []: 2-door Is there continuity? YES -Go to step 13 . NO -Repair an open or high resistance in the wire(s).
  13. Check for continuity between body ground and power seat control unit connector B (40P) terminal No. 10. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 14 .
  14. Reconnect power seat control unit connector B (40P).
  15. Turn the ignition switch to ON (II).
  16. Measure the voltage between recline motor/position sensor 5P connector terminals No. 5 (+) and No. 4 (-). Is there about 5 V? YES -Replace the recline motor/position sensor (see «FRONT SEAT RECLINE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-recline-motor-replacement) ). NO -If there is no voltage, replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). If there is battery voltage, repair a short in the wire (sensor line).
  17. Turn the ignition switch to LOCK (0).
  18. Disconnect power seat control unit connector A (40P).
  19. Disconnect the recline motor/position sensor 5P connector.
  20. Check for continuity between power seat control unit connector B (40P) terminals No. 15 and No. 29 and recline motor/position sensor 5P connector terminals No. 3 and No. 4 respectively. Is there continuity? YES -Go to step 21 . NO -Repair an open or high resistance in the wire(s).
  21. Reconnect power seat control unit connector B (40P).
  22. Turn the ignition switch to ON (II).
  23. Measure the voltage between power seat control unit connector B (40P) terminals No. 15 and No. 29. Is the motor OK? YES -Replace the recline motor/position sensor (see «FRONT SEAT RECLINE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-recline-motor-replacement) ). NO -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ).
  24. Turn the ignition switch to LOCK (0).
  25. Check the No. 21 (20 A) fuse in the driver's under-dash fuse/relay box. Is the fuse OK? YES -Go to step 26. NO -Replace the fuse. If the fuse blows again, repair a short to ground in the No. 21 (20 A) fuse circuit.
  26. Turn the ignition switch to ON (II).
  27. Measure the voltage between body ground and power seat control unit connector A (18P) terminal No. 1. Is there battery voltage? YES -Go to step 28. NO -Repair an open or high resistance in the wire between the driver's under-dash fuse/relay box and the power seat control unit.
  28. Measure the voltage between body ground and power seat control unit connector A (18P) terminal No. 4 when operating the rear up-down switch. Is there less than 0.2 V? YES -Repair an open or high resistance in the wire between the power seat control unit and body ground (G701). NO -Go to step 29.
  29. Turn the ignition switch to LOCK (0).
  30. Disconnect power seat control unit connector A (18P).
  31. Disconnect the recline motor/position sensor 5P connector.
  32. Check for continuity between power seat control unit connector B (18P) terminals No. 9 and No. 11 and recline motor/position sensor 5P connector terminals No. 1 and No. 2 respectively. []: 2-door Is there continuity? YES -Go to step 33 . NO -Repair an open or high resistance in the wire(s).
  33. Check for continuity between body ground and recline motor/position sensor 5P connector terminals No. 1 and No. 2 individually. Is there continuity? YES -Repair a short to ground in the wire(s). NO -Go to step 34 .
  34. Test the recline motor (see «DRIVER'S POWER SEAT MOTOR TEST»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__drivers-power-seat-motor-test) ). Is the motor OK? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Faulty recline motor; replace the recline motor/position sensor (see «FRONT SEAT RECLINE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-recline-motor-replacement) ).

DTC B1829: A/T-P Signal and VSP Signal Mismatch

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

  1. Clear the DTCs with the HDS.
  2. Start the engine.
  3. Test drive at 6 mph (10 km/h) for 10 seconds.
  4. Check for DTCs with the HDS. Is DTC B1829 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Check the P shift position indicator and the MIL. Does the P indicator and MIL come on? YES -Troubleshoot the automatic transmission system. NO -Go to step 6 .
  6. Check for the gauge control module DTCs with the HDS. Are any DTCs indicated? YES -Go to the indicated DTCs troubleshooting. NO -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ).

DTC B1836: Power Seat Position Sensor Circuit Short

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 158

Scheme 158: DTC B1836: Power Seat Position Sensor Circuit Short
Scheme 158: DTC B1836: Power Seat Position Sensor Circuit Short

Scheme 159

Scheme 159
Scheme 159

Scheme 160

Scheme 160
Scheme 160
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the power seat adjustment switch in all directions for more than 1 second each.
  4. Check for DTCs with the HDS. Is DTC B1836 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Turn the ignition switch to LOCK (0).
  6. Disconnect power seat control unit connector B (40P).
  7. Disconnect these connectors: Slide motor/position sensor 6P connector. Front up-down motor/position sensor 6P connector. Rear up-down motor/position sensor 6P connector. Recline motor/position sensor 5P connector.
  8. Check for continuity between power seat control unit connector B (40P) terminal No. 15 and body ground. []: 2-door Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 9.
  9. Check for continuity between recline motor/position sensor terminal No. 3 and the motor body. []: 2-door Is there continuity? YES -Repair the recline motor/position sensor (see «FRONT SEAT RECLINE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-recline-motor-replacement) ). NO -Go to step 10.
  10. Check for continuity between front up-down motor/position sensor, rear up-down motor/position sensor, and slide motor/position sensor terminal No. 4 and motor body. []: 2-door Is there continuity? YES -If the front or rear up-down motor/position sensor is faulty, replace the seat frame assembly (see «DRIVER'S SEAT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__drivers-seat) ). If the recline motor/position sensor is faulty, replace the slide motor/position sensor (see «FRONT SEAT SLIDE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-slide-motor-replacement) ). NO -Replace the power seat control unit (see «Power Seat Control Unit Input Test/Replacement»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ).

DTC B1837: Driving Position Memory Recall Timeout

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Move the power seat to the full front up and full rear up positions, then slide the seat all the way back and completely recline the seat-back backward with the power seat adjustment switch.
  4. Put this seating position into memory with the driving position memory switch (see «SYSTEM DESCRIPTION»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__system-description) ).
  5. Using the power seat switches, move the seat away from the position just memorized.
  6. Recall the memory position with the driving position memory switch.
  7. Wait for 2 minutes.
  8. Check for DTCs with the HDS. Are any DTCs indicated? YES -Go to step 9 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  9. Check for DTCs with the HDS. Are any DTCs other than B1837 indicated? YES -Go to the indicated DTC's troubleshooting. NO -Go to step 10 .
  10. Clear the DTCs with the HDS.
  11. Wait for at least 6 seconds.
  12. Move each power seat motor one at a time, and check the operation time. Does any motor fail to run smoothly? YES -Go to the power seat motor test (see «DRIVER'S POWER SEAT MOTOR TEST»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__drivers-power-seat-motor-test) ). If the motor is OK, check the engagement of the motor gear. NO -Go to the power seat control unit input test (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ).

DTC B1844: Power Seat Slide Switch Circuit Malfunction

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 161

Scheme 161: DTC B1844: Power Seat Slide Switch Circuit Malfunction
Scheme 161: DTC B1844: Power Seat Slide Switch Circuit Malfunction

Scheme 162

Scheme 162
Scheme 162
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the slide switch in each direction for more than 1 second.
  4. Check for DTCs with the HDS. Is DTC B1844 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Turn the ignition switch to LOCK (0).
  6. Disconnect power seat control unit connector A (40P).
  7. Disconnect the power seat adjustment switch 12P connector.
  8. Check for continuity between body ground and power seat control unit connector A (40P) terminals No. 1, No. 7, and No. 24 individually. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 9 .
  9. Check for continuity between these power seat control unit connector A (40P) terminals: No. 1 and No. 7 No. 1 and No. 24 No. 7 and No. 24 Is there continuity? YES -Repair a short in the wire(s). NO -Go to step 10 .
  10. Test the power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ). Is the switch OK? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Replace the power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ).

DTC B1845: Power Seat Recline Switch Circuit Malfunction

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 163

Scheme 163: DTC B1845: Power Seat Recline Switch Circuit Malfunction
Scheme 163: DTC B1845: Power Seat Recline Switch Circuit Malfunction

Scheme 164

Scheme 164
Scheme 164
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the recline switch in each direction for more than 1 second.
  4. Check for DTCs with the HDS. Is DTC B1845 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Turn the ignition switch to LOCK (0).
  6. Disconnect power seat control unit connector A (40P).
  7. Disconnect the power seat adjustment switch 12P connector.
  8. Check for continuity between body ground and power seat control unit connector A (40P) terminals No. 1, No. 6, and No. 23 individually. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 9 .
  9. Check for continuity between these power seat control unit connector A (40P) terminals: No. 1 and No. 6 No. 1 and No. 23 No. 6 and No. 23 Is there continuity? YES -Repair a short in the wire(s). NO -Go to step 10 .
  10. Test the power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ). Is the switch OK? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Replace the power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ).

DTC B1846: Power Seat Front Up-Down Switch Circuit Malfunction

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 165

Scheme 165: DTC B1846: Power Seat Front Up-Down Switch Circuit Malfunction
Scheme 165: DTC B1846: Power Seat Front Up-Down Switch Circuit Malfunction

Scheme 166

Scheme 166
Scheme 166
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the front up-down switch in each direction for more than 1 second.
  4. Check for DTCs with the HDS. Is DTC B1846 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Turn the ignition switch to LOCK (0).
  6. Disconnect power seat control unit connector A (40P).
  7. Disconnect the power seat adjustment switch 12P connector.
  8. Check for continuity between body ground and power seat control unit connector A (40P) terminals No. 1, No. 4, and No. 5 individually. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 9 .
  9. Check for continuity between these power seat control unit connector A (40P) terminals: No. 1 and No. 4 No. 1 and No. 5 No. 4 and No. 5 Is there continuity? YES -Repair a short in the wire(s). NO -Go to step 10 .
  10. Test the power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ). Is the switch OK? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Replace the power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ).

DTC B1847: Power Seat Rear Up-Down Switch Circuit Malfunction

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 167

Scheme 167: DTC B1847: Power Seat Rear Up-Down Switch Circuit Malfunction
Scheme 167: DTC B1847: Power Seat Rear Up-Down Switch Circuit Malfunction

Scheme 168

Scheme 168
Scheme 168
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Operate the rear up-down switch in each direction for more than 1 second.
  4. Check for DTCs with the HDS. Is DTC B1847 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
  5. Turn the ignition switch to LOCK (0).
  6. Disconnect power seat control unit connector A (40P).
  7. Disconnect the power seat adjustment switch 12P connector.
  8. Check for continuity between body ground and power seat control unit connector A (40P) terminals No. 1, No. 3, and No. 22 individually. Is there continuity? YES -Repair a short to ground in the wire. NO -Go to step 9 .
  9. Check for continuity between these power seat control unit connector A (40P) terminals: No. 1 and No. 3 No. 1 and No. 22 No. 3 and No. 22 Is there continuity? YES -Repair a short in the wire(s). NO -Go to step 10 .
  10. Test the power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ). Is the switch OK? YES -Replace the power seat control unit (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Replace the power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ).

DTC U0155: Power Seat Control Unit Lost Communication With Gauge Control Module

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 169

Scheme 169: DTC U0155: Power Seat Control Unit Lost Communication With Gauge Control Module
Scheme 169: DTC U0155: Power Seat Control Unit Lost Communication With Gauge Control Module

Scheme 170

Scheme 170
Scheme 170

Scheme 171

Scheme 171
Scheme 171
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Wait for at least 6 seconds.
  4. Check for DTCs with the HDS. Is DTC U0155 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections between the power seat control unit and the gauge control module.
  5. From the BODY ELECTRICAL SYSTEM SELECT menu, select B-CAN CONTROL UNITS INFORMATION, and then select CHECK CONNECTED CONTROL UNITS. Is the gauge control module detected? YES -Go to step 10 . NO -Go to step 6 .
  6. Measure the voltage between body ground and gauge control module 32P connector terminals No. 15 and No. 16 individually. Is there battery voltage? YES -Go to step 9 . NO -Go to step 7.
  7. Turn the ignition switch to LOCK (0).
  8. Check the No. 15 (10 A) fuse in the under-hood fuse/relay box and the No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box. Are the fuses OK? YES -Repair an open or high resistance in the No. 15 (10 A) and/or No. 5 (7.5 A) fuse circuit. NO -Replace the fuse(s). If the fuse blows again, repair a short to ground in the No. 15(10 A) and/or No. 5 (7.5 A) fuse circuit.
  9. Measure the voltage between body ground and gauge control module 32P connector terminals No. 1 and No. 17 individually. Is there less than 0.2 V? YES -Go to step 10 . NO -Repair an open or high resistance in the ground wire or poor ground (G501) and/or (G502).
  10. Turn the ignition switch to LOCK (0).
  11. Disconnect power seat control unit connector A (40P).
  12. Disconnect the gauge control module 32P connector.
  13. Check for continuity between gauge control module 32P connector terminals No. 23 and No. 24 and power seat control unit connector A (40P) terminals No. 39 and No. 40 respectively. Is there continuity? YES -Replace the gauge control module (see «GAUGE CONTROL MODULE REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/gauges-instrument-panels/#gauges-v6__gauge-control-module-replacement) ). NO -Repair an open or poor connection in the B-CAN wire between the power seat control unit and the gauge control module.

DTC U0199: Power Seat Control Unit Lost Communication With Door Multiplex Control Unit

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 172

Scheme 172: DTC U0199: Power Seat Control Unit Lost Communication With Door Multiplex Control Unit
Scheme 172: DTC U0199: Power Seat Control Unit Lost Communication With Door Multiplex Control Unit

Scheme 173

Scheme 173
Scheme 173

Scheme 174

Scheme 174
Scheme 174
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Wait for at least 6 seconds.
  4. Check for DTCs with the HDS. Is DTC U0199 indicated? YES -Go to step 5 . NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections between the power seat control unit and the door multiplex control unit.
  5. From the BODY ELECTRICAL SYSTEM SELECT menu, select B-CAN CONTROL UNITS INFORMATION, and then select CHECK CONNECTED CONTROL UNITS. Is the power window unit detected? YES -Go to step 10 . NO -Go to step 6 .
  6. Measure the voltage between body ground and power window master switch 37P connector terminal No. 13. Is there battery voltage? YES -Go to step 9 . NO -Go to step 7.
  7. Turn the ignition switch to LOCK (0).
  8. Check the No. 15 (10 A) fuse in the under-hood fuse/relay box. Is the fuse OK? YES -Repair an open or high resistance in the No. 15 (10 A) fuse circuit. NO -Replace the fuse. If the fuse blows again, repair a short to ground in the No. 15(10 A) fuse circuit.
  9. Measure the voltage between body ground and power window master switch 37P connector terminals No. 32 and No. 37 individually. Is there less than 0.2 V? YES -Go to step 10 . NO -Repair an open or high resistance in the ground wire or poor ground (G501) and/or (G502).
  10. Turn the ignition switch to LOCK (0).
  11. Disconnect power seat control unit connector A (40P).
  12. Disconnect the power window master switch 37P connector.
  13. Check for continuity between power window master switch 37P connector terminals No. 33 and No. 35 and power seat control unit connector A (40P) terminals No. 39 and No. 40 respectively. Is there continuity? YES -Replace the power window master switch (see «POWER WINDOW MASTER SWITCH REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/windows/#power-windows-v6) ). NO -Repair an open or poor connection in the B-CAN wire(s) between the power seat control unit and the door multiplex control unit.

DTC U1282: Power Seat Control Unit Lost Communication With Driver's MICU

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Wait for at least 6 seconds.
  4. Check for DTCs with the HDS. Is DTC U1282 indicated? YES -Go to the power seat control unit input test (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-control-unit-input-testreplacement) ). NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections between the power seat control unit and the driver's MICU.

System Input Test and Function Test

  1. Connect the HDS to the data link connector (DLC).
  2. Turn the ignition switch to ON (II).
  3. From the BODY ELECTRICAL SYSTEM SELECT menu, select POWER SEAT/POWER MIRROR, then DTCs. If DTCs are found, troubleshoot the DTCs using B-CAN System Diagnosis Test Mode A (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A»(/acura/tsx/ii-2008-2014/remont/communication-devices/#multiplex-integrated-control-system-v6__troubleshooting-b-can-system-diagnosis-test) ). If no DTCs are found, go to step 4 .
  4. Exit the DTC mode, and select DATA LIST from the POWER SEAT TEST MODE MENU.
  5. Test each input and monitor each output under the condition shown below: If the data list indication is correct, continue to the next switch. If all switches are OK, go to step 6 . If the data list indication is not correct, do the appropriate test at the control unit and terminal indicated in the table. Voltage drop tests should be done with the ignition switch in ON (II) and all connectors connected and the meter negative test lead attached to a good body ground, unless specified otherwise. Continuity tests should be done with the ignition switch in LOCK (0) and indicated terminals disconnected. SYSTEM INPUT TEST AND FUNCTION REFERENCE CHART Data List Input/Command Condition: Data List Indication Control Unit/Terminal Number/Test (If applicable) Possible cause if desired result is not obtained Ignition Switch for Power Seat Control Ignition switch OFF: OFF Ignition switch ON (II): ON Power seat control unit/A34 Ignition switch ON (II): 12 V Blown No. 2 (7.5 A) fuse in the driver's under-dash fuse/relay box Faulty under-dash fuse/relay box Faulty power seat control unit An open or high resistance in the wire Slide Switch Forward Slide switch forward: ON Switch released: OFF Power seat control unit/A1 (BLK/BRN), A7 (RED/WHT) Slide switch forward: 0 V Switch released: 5 V Faulty driver's power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ) Faulty power seat control unit An open or high resistance in the wire A short to ground in the wire Slide Switch Backward Slide switch backward: ON Switch released: OFF Power seat control unit/A1 (BLK/BRN), A24 (ORN) Slide switch backward: 0 V Switch released: 5 V Faulty driver's power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ) Faulty power seat control unit An open or high resistance in the wire A short to ground in the wire Recline Switch Forward Recline switch forward: ON Switch released: OFF Power seat control unit/A1 (BLK/BRN), A6 (PNK) Recline switch forward: 0 V Switch released: 5 V Faulty driver's power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ) Faulty power seat control unit An open or high resistance in the wire A short to ground in the wire Recline Switch Backward Recline switch backward: ON Switch released: OFF Power seat control unit/A1 (BLK/BRN), A23 (PUR) Recline switch backward: 0 V Switch released: 5 V Faulty driver's power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ) Faulty power seat control unit An open or high resistance in the wire A short to ground in the wire Front Up-Down Switch Up Front up-down switch up: ON Switch released: OFF Power seat control unit/A1 (BLK/BRN), A5(LT GRN) Front up-down switch up: 0 V Switch released: 5 V Faulty driver's power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ) Faulty power seat control unit An open or high resistance in the wire A short to ground in the wire SYSTEM INPUT TEST AND FUNCTION REFERENCE CHART Data List Input/Command Condition: Data List Indication Control Unit/Terminal Number/Test (If applicable) Possible cause if desired result is not obtained Front Up-Down Switch Down Front up-down switch down: ON Switch released: OFF Power seat control unit/A1 (BLK/BRN), A4 (RED/BLK) Front up-down switch down: 0 V Switch released: 5 V Faulty driver's power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ) Faulty power seat control unit An open or high resistance in the wire A short to ground in the wire Rear Up-Down Switch Up Rear up-down switch up: ON Switch released: OFF Power seat control unit/A1 (BLK/BRN), A22 (GRN/ORN) Rear up-down switch up: 0 V Switch released: 5 V Faulty driver's power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ) Faulty power seat control unit An open or high resistance in the wire A short to ground in the wire Rear Up-Down Switch Down Rear up-down switch down: ON Switch released: OFF Power seat control unit/A1 (BLK/BRN), A3 (GRY) Rear up-down switch down: 0 V Switch released: 5 V Faulty driver's power seat adjustment switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#driver-position-memory-system-dpms-v6__power-seat-adjustment-switch-testreplacement) ) Faulty power seat control unit An open or high resistance in the wire A short to ground in the wire Ignition Switch for Power Seat Control Ignition switch ON (II): ON Ignition switch OFF: OFF Power seat control unit/A34 (BLK/YEL) Ignition switch ON (II): 12 V Blown No. 2 (7.5 A) fuse in the driver's under-dash fuse/relay box Faulty under-dash fuse/relay box Faulty power seat control unit An open or high resistance in the wire ATP Switch Transmission range switch P position: ON Any other position than P: OFF Power seat control unit/A26 (BLK/BLU) Transmission range switch P: 0 V Faulty transmission range switch Faulty power seat control unit An open or high resistance in the wire Slide Sensor Seat moving forward or backward: ON Seat not moving: OFF Power seat control unit/A31 (YEL/BLK) Pulses as seat moves: 2.5 V average Faulty slide position sensor Faulty power seat control unit An open or high resistance in the wire Front Up-Down Sensor Seat front moving up/down: ON Seat not moving: OFF Power seat control unit/A12(BLU/BLK) Pulses as seat moves: 2.5 V average Faulty front up-down position sensor Faulty power seat control unit An open or high resistance in the wire Recline Sensor Seat back moving forward or backward: ON Seat not moving: OFF Power seat control unit/A10(BLU/WHT) Pulses as seat moves: 2.5 V average Faulty recline position sensor Faulty power seat control unit An open or high resistance in the wire Rear Up-Down Sensor Seat rear moving up/down: ON Seat not moving: OFF Power seat control unit/A13(GRN/WHT) Pulses as seat moves: 2.5 V average Faulty rear up-down sensor Faulty power seat control unit An open or high resistance in the wire DPMS SET Switch Driving position memory switch SET button pushed: ON Switch released: OFF Door multiplex control unit/19(YEL) Driving position memory switch SET button pushed: 19 (about less than 1 V) SET button released: 19 (at least 5 V) Faulty driving position memory switch Faulty door multiplex control unit An open or high resistance in the wire A short to ground in the wire DPMS POSITION 1 Switch Driving position memory switch POSITION 1 button pushed: ON Switch released: OFF Door multiplex control unit/17(GRY) Driving position memory switch POSITION 1 button pushed: 17 (about more than 1 V) POSITION 1 button released: 17 (at least 5 V) Faulty driving position memory switch Faulty door multiplex control unit An open or high resistance in the wire A short to ground in the wire DPMS POSITION 2 Switch Driving position memory switch POSITION 2 button pushed: ON Switch released: OFF Door multiplex control unit/16 (RED) Driving position memory switch POSITION 2 button pushed: 16 (about more than 1 V) POSITION 2 button released: 16 (at least 5 V) Faulty driving position memory switch Faulty door multiplex control unit An open or high resistance in the wire A short to ground in the wire
  6. Exit the DATA LIST and select FUNCTION TEST.
  7. Do each of the function tests listed in the table shown. The appropriate output should occur. If the function operates normally, go to the next function test. If all function tests operate normally, the system is OK. If the function does not occur, do the appropriate test at the control unit and terminal indicated in the table. Voltage drop tests should be done with the ignition switch in ON (II) and all connectors connected. Continuity tests should be done with the ignition switch in LOCK (0) and indicated terminals disconnected. Jumper tests should be done according to the instructions indicated. If the test indicates that the component operates normally, but the function will not operate by doing the function test or the normal use of the component, the control unit that operates that function must be faulty; replace it. If the test indicates that the component does not operate normally, check for an open or short in the harnesses between the component and the control unit. If the harness is OK, replace the component. SYSTEM INPUT TEST AND FUNCTION REFERENCE CHART Function Test Component and Operation Control Unit/Terminal Number/Test (If applicable) Possible cause if desired result is not obtained Power Seat: Slide Motor-Full Forward Seat slides forward Power seat control unit/B8(PUR), B18(BLK), B7(LT GRN), B17 (YEL) Disconnect power seat control unit connector B. Connect B8 to B17 and B7 to B18; driver's seat should slide forward. Faulty slide motor An open or high resistance in the wire A short to ground in the wire Power Seat: Slide Motor-Full Backward Seat slides backward Power seat control unit/B8(PUR), B18(BLK), B7(LT GRN), B17(YEL) Disconnect power seat control unit connector B. Connect B8 to B7 and B17 to B18; driver's seat should slide backward. Faulty slide motor An open or high resistance in the wire A short to ground in the wire SYSTEM INPUT TEST AND FUNCTION REFERENCE CHART Function Test Component and Operation Control Unit/Terminal Number/Test (If applicable) Possible cause if desired result is not obtained Power Seat: Front Up-Down Motor-Full Up Front of seat moves up Power seat control unit/B8(PUR), B18(BLK), B6 (BRN/WHT), B16(ORN) Disconnect power seat control unit connector B. Connect B8 to B16 and B6 to B18; front of driver's seat should move up. Faulty front up-down motor An open or high resistance in the wire A short to ground in the wire Power Seat: Front Up-Down Motor-Full Down Front of seat moves down Power seat control unit/B8(PUR), B18(BLK), B6 (BRN/WHT), B16 (ORN) Disconnect power seat control unit connector B. Connect B8 to B6 and B16 to B18; front of driver's seat should move down. Faulty front up-down motor An open or high resistance in the wire A short to ground in the wire Power Seat: Rear Up-Down Motor-Full Up Rear of seat moves up Power seat control unit/B1 (WHT), B4 (BLK/YEL), B2(GRN), B10(BLU) Disconnect power seat control unit connector B. Connect B1 to B2 and B10 to B4; rear of driver's seat should move up. Faulty rear up-down motor An open or high resistance in the wire A short to ground in the wire Power Seat: Rear Up-Down Motor-Full Down Rear of seat moves down Power seat control unit/B1 (WHT), B4 (BLK/YEL), B2(GRN), B10(BLU) Disconnect power seat control unit connector B. Connect B1 to B10 and B2 to B4; rear of driver's seat should move down. Faulty rear up-down motor An open or high resistance in the wire A short to ground in the wire Power Seat: Recline Motor-Full Forward Seat back moves forward Power seat control unit/B1 (WHT), B4 (BLK/YEL), B11 (GRY), B9 (RED) Disconnect power seat control unit connector B. Connect B1 to B9 and B11 to B4; driver's seat back should move forward. Faulty recline motor An open or high resistance in the wire A short to ground in the wire Power Seat: Recline Motor-Full Backward Seat back moves backward Power seat control unit/B1 (WHT), B4 (BLK/YEL), B11 (GRY), B9 (RED) Disconnect power seat control unit connector B. Connect B1 to B11 and B9 to B4; driver's seat back should move backward. Faulty recline motor An open or high resistance in the wire A short to ground in the wire

Power Seat Control Unit Input Test/Replacement

Note. SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 175

Scheme 175: Power Seat Control Unit Input Test/Replacement
Scheme 175: Power Seat Control Unit Input Test/Replacement
  1. Turn the ignition switch to LOCK (0).
  2. Remove the driver's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-removalinstallation) ). NOTE: Be careful not to scratch the interior trim.
  3. Disconnect the 40P connector (A) and 18P connector (B) from the power seat control unit (C).
  4. Inspect the connector and socket terminals to be sure they are all making good contact. If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system. If the terminals look OK, go to step 5 .
  5. Reconnect the connectors to the power seat control unit, and do the following input tests: If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, go to step 6 . WIRE TEST CONDITION CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A34 BLK/YEL Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 2 (7.5 A) fuse in the driver's under-dash fuse/relay box An open or high resistance in the wire A36 BLU Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 15 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire B1 WHT Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 3-4 (DR F/B) (60 A) fuse in the under-hood fuse/relay box Blown No. 21 (20 A) fuse in the driver's under-dash fuse/relay box An open or high resistance in the wire B8 PUR Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 3-4 (DR F/B) (60 A) fuse in the under-hood fuse/relay box Blown No. 19 (20 A) fuse in the driver's under-dash fuse/relay box An open or high resistance in the wire A9 BLK/GRN Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G701) An open or high resistance in the ground wire B4 BLK/YEL Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G701) An open or high resistance in the ground wire B18 BLK Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G701) An open or high resistance in the ground wire A26 BLK/BLU Shift lever in P position Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G101) or an open in the ground wire Faulty transmission range switch An open or high resistance in the wire Shift lever in any other position than P Measure the voltage to ground: There should be about 5 V. Faulty transmission range switch A short to ground in the wire A15 WHT/BLK Under all conditions Measure the voltage to ground: There should be about 5 V. Faulty position sensor A short to ground in the wire A10 . A29 BLU/WHT . GRN/BLK Run the recline motor Measure the voltage between terminals A10 (+) and A29 (-): There should be about 2.5 V average. Faulty position sensor An open or high resistance in the wire A short to ground in the wire A31 . A29 YEL/BLK . GRN/BLK Run the slide motor Measure the voltage between terminals A31 (+) and A29 (-): There should be about 2.5 V average. Faulty position sensor An open or high resistance in the wire A short to ground in the wire A12 . A29 BLU/BLK . GRN/BLK Run the front up-down motor Measure the voltage between terminals A12 (+) and A29 (-): There should be about 2.5 V average. Faulty position sensor An open or high resistance in the wire A short to ground in the wire A13 . A29 GRN/WHT . GRN/BLK Run the rear up-down motor Measure the voltage between terminals A13 (+) and A29 (-): There should be about 2.5 V average. Faulty position sensor An open or high resistance in the wire A short to ground in the wire
  6. Turn the ignition switch to LOCK (0)
  7. Disconnect the connectors from the power seat control unit, and do the following input tests: If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, the control unit must be faulty; replace it. WIRE TEST CONDITION CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A39 BLK/WHT Under all conditions (disconnect the power window master switch 37P connector) Check for continuity between terminal A39 and power window master switch 37P connector terminal No. 33: There should be continuity. An open in the B-CAN wire Under all conditions (disconnect the immobilizer-keyless control unit 7P connector) Check for continuity between terminal A39 and immobilizer-keyless control unit 7P connector terminal No. 3: There should be continuity. An open in the B-CAN wire A40 YEL Under all conditions (disconnect the power window master switch 37P connector) Check for continuity between terminal A40 and power window master switch 37P connector terminal No. 35: There should be continuity. An open in the B-CAN wire Under all conditions (disconnect the immobilizer-keyless control unit 7P connector) Check for continuity between terminal A40 and immobilizer-keyless control unit 7P connector terminal No. 4: There should be continuity. An open in the B-CAN wire A1 . A7 BLK/BRN . RED/WHT Slide switch in FORWARD position Check for continuity between the terminals: There should be continuity. Faulty driver's power seat adjustment switch An open or high resistance in the wire A1 . A24 BLK/BRN . ORN Slide switch in BACKWARD position Check for continuity between the terminals: There should be continuity. Faulty driver's power seat adjustment switch An open or high resistance in the wire A1 . A6 BLK/BRN . PNK Recline switch in FORWARD position Check for continuity between the terminals: There should be continuity. Faulty driver's power seat adjustment switch An open or high resistance in the wire A1 . A23 BLK/BRN . PUR Recline switch in BACKWARD position Check for continuity between the terminals: There should be continuity. Faulty driver's power seat adjustment switch An open or high resistance in the wire A1 . A5 BLK/BRN . LT GRN Front up-down switch in UP position Check for continuity between the terminals: There should be continuity. Faulty driver's power seat adjustment switch An open or high resistance in the wire A1 . A4 BLK/BRN . RED/BLK Front up-down switch in DOWN position Check for continuity between the terminals: There should be continuity. Faulty driver's power seat adjustment switch An open or high resistance in the wire A1 . A22 BLK/BRN . GRN/ORN Rear up-down switch in UP position Check for continuity between the terminals: There should be continuity. Faulty driver's power seat adjustment switch An open or high resistance in the wire A1 . A3 BLK/BRN . GRY Rear up-down switch in DOWN position Check for continuity between the terminals: There should be continuity. Faulty driver's power seat adjustment switch An open or high resistance in the wire B7 . B17 YEL . LT GRN Under all conditions Connect terminals B1 and B7, and terminals B17 and B4: The seat should slide backward. Faulty slide motor An open or high resistance in the wire Connect terminals B1 and B17, and terminals B7 and B4: The seat should slide forward. B9 . B11 RED . GRY Under all conditions Connect terminals B1 and B9, and terminals B11 and B4: The seat should recline forward. Faulty recline motor An open or high resistance in the wire Connect terminals B1 and B11, and terminals B9 and B4: The seat should recline backward. B2 . B10 GRN . BLU Under all conditions Connect terminals B1 and B2, and terminals B10 and B4: The rear of seat should move up. Faulty rear up-down motor An open or high resistance in the wire Connect terminals B1 and B16, and terminals B6 and B4: The front of seat should move up.

Door Multiplex Control Unit Input Test

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 176

Scheme 176: Door Multiplex Control Unit Input Test
Scheme 176: Door Multiplex Control Unit Input Test
  1. Turn the ignition switch to LOCK (0).
  2. Remove the power window master switch (see «REAR POWER WINDOW SWITCH TEST»(/acura/tsx/ii-2008-2014/remont/windows/#power-windows-v6) ). NOTE: Be careful not to scratch the door trim.
  3. Disconnect the 37P connector (A) from the power window master switch (B).
  4. Inspect the connector and socket terminals to be sure they are all making good contact. If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system. If the terminals look OK, go to step 5 .
  5. Reconnect the connector to the power window master switch, and do the following input tests: If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, go to step 6 . WIRE TEST CONDITION CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 13 WHT Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 15 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire 14 LT GRN Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box An open or high resistance in the wire 25 WHT Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 3-4 (DR F/B) (60 A) fuse in the under-hood fuse/relay box Blown No. 24 (20 A) fuse in the driver's under-dash fuse/relay box An open or high resistance in the wire 32 BLK Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire 37 BLK Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground(G502) An open or high resistance in the ground wire 16 RED Ignition switch ON (II), position 2 button pressed Measure the voltage to ground: There should be less than 0.2 V. Poor ground(G501) Faulty driving position memory switch An open or high resistance in the wire Ignition switch ON (II), position 2 button released Measure the voltage to ground: There should be about 5 V. Faulty driving position memory switch A short to ground in the wire 17 GRY Ignition switch ON (II), position 1 button pressed Measure the voltage to ground: There should be less than 0.2 V. Poor ground(G501) Faulty driving position memory switch An open or high resistance in the wire Ignition switch ON (II), position 1 button released Measure the voltage to ground: There should be about 5 V. Faulty driving position memory switch A short to ground in the wire 19 YEL Ignition switch ON (II), SET button pressed Measure the voltage to ground: There should be less than 0.2 V. Poor ground(G501) Faulty driving position memory switch An open or high resistance in the wire Ignition switch ON (II), SET button released Measure the voltage to ground: There should be about 5 V. Faulty driving position memory switch A short to ground in the wire
  6. Turn the ignition switch to LOCK (0)
  7. Disconnect the connector from the power window master switch, and do the following input tests: If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, the door multiplex control unit must be faulty; replace the power window master switch (see «REAR POWER WINDOW SWITCH TEST»(/acura/tsx/ii-2008-2014/remont/windows/#power-windows-v6) ). NOTE: After replacing the power window master switch, reset the power window control unit (see «RESETTING THE POWER WINDOW CONTROL UNIT»(/acura/tsx/ii-2008-2014/remont/windows/#power-windows-v6__resetting-the-power-window-control-unit) ). WIRE TEST CONDITION CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 4 GRN Under all conditions Connect terminals No. 25 and No. 4: The driving position memory switch indicator 2 should come on. Faulty driving position memory switch Faulty LED Poor ground(G501)or an open in the ground wire An open or high resistance in the wire 6 PUR Under all conditions Connect terminals No. 25 and No. 6: The driving position memory switch indicator 1 should come on. Faulty driving position memory switch Faulty LED Poor ground(G501) or an open in the ground wire An open or high resistance in the wire 26 PNK Ignition switch ON (II) Connect terminals No. 14 and No. 26: The driving position memory switch lights should come on. Faulty driving position memory switch Faulty LED Poor ground(G501)or an open in the ground wire An open or high resistance in the wire 33 BLU Under all conditions (disconnect power seat control unit connector A (40P)) Check for continuity between terminal No. 33 and power seat control unit connector A (40P) terminal No. 39: There should be continuity. An open in the B-CAN wire 35 PNK Under all conditions (disconnect power seat control unit connector A (40P)) Check for continuity between terminal No. 35 and power seat control unit connector A (40P) terminal No. 40: There should be continuity. An open in the B-CAN wire

Scheme 177

Scheme 177: Driving Position Memory Switch Test/Replacement
Scheme 177: Driving Position Memory Switch Test/Replacement

Scheme 178

Scheme 178
Scheme 178
  1. Carefully pry the driving position memory switch (A) out from the door panel.
  2. Disconnect the 7P connector (B) from the driving position memory switch.
  3. Check for continuity between the terminals in each switch position according to the table. NOTE: Make sure the correct test lead (+ or -) is placed on the terminal. When checking for continuity across the diode, use the diode setting ( ) on the digital volt/ohm meter to check the diode bias. Note this important operating characteristic; diode bias causes a diode to fully conduct electricity in one direction (forward), while not at all in the opposite direction (reverse).
  4. If the continuity is not as specified, replace the switch.
  5. Install the switch in the reverse order of removal.

Power Seat Adjustment Switch Test/Replacement

Note. SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing.

Scheme 179

Scheme 179: Power Seat Adjustment Switch Test/Replacement
Scheme 179: Power Seat Adjustment Switch Test/Replacement

Scheme 180

Scheme 180
Scheme 180
  1. Remove the driver's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-removalinstallation) ).
  2. Remove the power seat adjustment switch knobs (A) and the recline cover from the driver's seat (see «FRONT SEAT CUSHION COVER REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-cushion-cover-replacement) ), then remove the two screws and the power seat adjustment switch (B).
  3. Remove the two screws and the power seat adjustment switch (B).
  4. Disconnect the 12P connector from the power seat adjustment switch.
  5. Reinstall the adjustment switch knobs to the switch.
  6. Check for continuity between the terminals in each position according to the table.
  7. If the continuity is not as specified, replace the switch.
  8. Install the switch in the reverse order of removal.

Driver's Power Seat Motor Test

Note. SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing.

Scheme 181

Scheme 181: Driver's Power Seat Motor Test
Scheme 181: Driver's Power Seat Motor Test

Scheme 182

Scheme 182
Scheme 182
  1. Remove the driver's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-removalinstallation) ).
  2. Disconnect the 5P connector from each power seat motor. NOTE: All connectors are terminal side of male terminals.
  3. Test each motor by connecting power and ground according to the table. When the motor stops running, disconnect battery power immediately.
  4. If the motor does not run or fails to run smoothly, replace: Slide motor (see «FRONT SEAT SLIDE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-slide-motor-replacement) ) Front up-down motor (see «FRONT SEAT UP-DOWN MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6) ) Rear up-down motor (see «REAR UP-DOWN MOTOR»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__rear-up-down-motor) ) Recline motor (see «FRONT SEAT RECLINE MOTOR REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/seats/#seats-v6__front-seat-recline-motor-replacement) )

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