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Home >> Acura >> 2007 >> RDX >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> Driver Position Memory System (DPMS) >> System Input Test and Function Test
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System Input Test and Function Test

  1. Connect the HDS to the DLC.
  2. Turn the ignition switch ON (II).
  3. From the BODY ELECTRICAL SYSTEM SELECT menu, select POWER SEAT/POWER MIRROR, then DTCs.
  4. Exit the DTC mode and select DATA LIST from the POWER SEAT/POWER MIRROR TEST MODE menu.
  5. Test each input and monitor each output under the condition listed 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, perform the appropriate test at the control unit and terminal indicated in the table.
      • Voltage drop tests should be done with the ignition switch ON (II) and all connectors connected and the meter negative test lead attached to a good body ground.
      • Continuity tests should be done with the ignition switch OFF and indicated terminals disconnected.
    DTC INDEX (WITHOUT HDS)

    Data List Input/ Command Condition: Data List Indication Control Unit/Terminal Number/ Test (If applicable) Possible cause if desired result is not obtained
    Door Mirror UP switch Mirror select switch in LEFT, then RIGHT
    Mirror up switch pressed: ON
    Mirror up switch released: OFF    		 Power mirror control unit/10 (WHT), 22 (BLK)
    Mirror select switch UP: 0 V Center or DOWN: 5 V
    Door Mirror Select in LEFT selection Mirror select switch in LEFT position: ON
    Select switch in CENTER or RIGHT position: OFF    		 Power mirror control unit/1 (BLU), 2 (YEL)
    Mirror select switch LEFT: G V Center: 5 V
    Door Mirror DOWN switch Mirror select switch in LEFT, then RIGHT
    Mirror down switch pressed: ON
    Mirror switch released: OFF    		 Left side: Power mirror control unit/1 (BLU), 10 (WHT)
    Right side: Power mirror control unit/9 (LT GRN), 10 (WHT)
    Mirror select switch DOWN: 0 V Center: 5 V
    Door Mirror Select in RIGHT selection Mirror select switch in RIGHT
    position: ON Select switch in CENTER or LEFT position: OFF    		 Power mirror control unit/8 (PNK), 9 (LT GRN)
    Mirror select switch RIGHT: 0 V Center: 5 V
    Door Mirror LEFT switch Mirror select switch in LEFT, then RIGHT
    Mirror left switch pressed: ON
    Mirror switch released: OFF    		 Left side: Power mirror control unit/1 (BLU), 22 (BLK)
    Right side: Power mirror control unit/9 (LT GRN), 22 (BLK)
    Mirror select switch LEFT: 0 V Center or RIGHT: 5 V
    Door Mirror RIGHT switch Mirror select switch in LEFT, then RIGHT
    Mirror right switch pressed: ON
    Mirror switch released: OFF    		 Left side: Power mirror control unit/2 (YEL), 22 (BLK)
    Right side: Power mirror control unit/8 (PNK), 22 (BLK)
    Mirror select switch RIGHT: 0 V Center or LEFT: 5 V
    Slide Switch Forward Slide switch forward: ON
    Switch released: OFF    		 Power seat control unit/A7, A1 (BLU)
    Slide switch released: 5 V or more
    Slide switch forward: 0 V
    Slide Switch Backward Slide switch backward: ON
    Switch released: OFF    		 Power seat control unit/A27, A1 (ORN/BLU)
    Slide switch released: 5 V or more
    Slide switch backward: 0 V
    Recline Switch Forward Recline switch forward: ON
    Switch released: OFF    		 Power seat control unit/A6, A1 (WHT/YEL)
    Recline switch released: 5 V or more
    Recline switch forward: 0 V
    Recline Switch Backward Recline switch backward: ON
    Switch open: OFF    		 Power seat control unit/A25, A1 (ORN/GRN)
    Recline switch released: 5 V or more
    Recline switch backward: 0 V
    Front Up-Down Switch Up Front up-down switch up: ON
    Switch released: OFF    		 Power seat control unit/A5, A1 (GRN/BLU)
    Front up-down switch released: 5 V or more
    Front up-down switch up: 0 V
    Front Up-Down Switch Down Front up-down switch down: ON
    Switch released: OFF    		 Power seat control unit/A4, A1 (RED/BLK)
    Front up-down switch released: 5 V or more
    Front up-down switch down: 0 V
    Rear Up-down Switch Up Rear up-down switch up: ON
    Switch released: OFF    		 Power seat control unit/A23, A1 (GRN/ORN)
    Rear up-down switch released: 5 V or more
    Rear up-down switch up: 0 V
    • Faulty switch
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Rear Up-down Switch Down Rear up-down switch down: ON
    Switch released: OFF    		 Power seat control unit/A3, A1 (BRN/BLK)
    Rear up-down switch released: 5 V or more
    Rear up-down switch down: 0 V
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Transmission Range Switch Transmission in P: ON
    Transmission out of P: OFF    		 Power seat control unit/A31 (BLU/BLK)
    Transmission in P: 0 V
    • Faulty switch
    • An open in the wire
    • Faulty control unit
    Ignition switch for power seat control Ignition switch ON (II): ON
    Ignition switch off: OFF    		 Power seat control unit/A35 (YEL)
    Ignition switch ON (II): 12 V
    • Blown No. 1 (7.5 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    • Faulty control unit
    Slide Position Sensor Seat moving forward or rearward: ON
    Seat not moving: OFF    		 Power seat control unit/A11 (YEL/GRN)
    Pulses as seat moves, 2.5 V average
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Front Up-Down Position Sensor Seat front moving up/down: ON
    Seat not moving: OFF    		 Power seat control unit/A12 (YEL/BLK)
    Pulses as seat moves, 2.5 V average
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Recline Position Sensor Seat back moving forward or rearward: ON
    Seat not moving: OFF    		 Power seat control unit/A10 (WHT/RED)
    Pulses as seat moves, 2.5 V average
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Rear Up-down Position Sensor Seat rear moving up/down: ON
    Seat not moving: OFF    		 Power seat control unit/A13 (YEL/BLK)
    Pulses as seat moves, 2.5 V average
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Seat SET Switch Seat SET switch pressed: ON
    Switch released: OFF    		 Power seat control unit/A20 (WHT)
    Seat SET switch pressed: 0 V; Switch released: 5 V or more
    • Faulty switch
    • An open in the wire
    • Faulty control unit
    Driver 1 Position Switch Driver 1 position switch pressed: ON
    Switch released: OFF    		 Power seat control unit/A18 (BLU)
    Driver 1 position switch pressed: 0 V; Switch released: 5 V or more
    • Faulty switch
    • An open in the wire
    • Faulty control unit
    Driver 2 Position Switch Driver 2 position switch pressed: ON
    Switch released: OFF    		 Power seat control unit/A19 (BLU/YEL)
    Driver 2 position switch pressed: 0 V; Switch released: 5 V or more
    • Faulty switch
    • An open in the wire
    • Faulty control unit
    Driver 1 Position Indicator Driver 1 Position
    Indicator on: ON
    Driver 1 Position
    Indicator off: OFF    		 Function Test: Go to step  6 N/A
    Driver 2 Position Indicator Driver 2 Position
    Indicator on: ON
    Driver 2 Position
    Indicator off: OFF    		 Function Test: Go to step  6 N/A
    Slide Motor Command As seat moves forward or rearward: ON
    Seat not moving: OFF    		 Function Test Go to step 6 N/A
    Recline Motor Command As seat back moves forward or rearward: ON
    Seat not moving: OFF    		 Function Test: Go to step  6 N/A
    Front Height Motor Command As front of seat moves up or down: ON
    Seat not moving: OFF    		 Function Test: Go to step  6 N/A
    Rear Height Motor Command As rear of seat moves up or down: ON
    Seat not moving: OFF    		 Function Test: Go to step  6 N/A
    Power Seat Buzzer Command Power seat buzzer commanded on: ON
    Power seat buzzer commanded off: OFF    		 Function Test: Go to step  6 N/A
    Left Mirror Horizontal Sensor Left mirror moves left/right: NORMAL
    Left mirror does not move: ABNORMAL    		 Power mirror control unit/4 (ORN), 6 (LT GRN)
    Left mirror moving from full left to full right: 4 (about 0.5 V to 4.5 V), 6 (5 V or more)
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Left Mirror Vertical Sensor Left mirror moves up/down: NORMAL
    Left mirror stopped: ABNORMAL    		 Power mirror control unit/5 (GRN), 6(LT GRN)
    Left mirror moving from full left to full right: 5 (about 0.5 V to 4.5 V), 6 (5 V or more)
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Right Mirror Horizontal Sensor Right mirror moves left/right: NORMAL
    Right mirror stopped: ABNORMAL    		 Power mirror control unit/20 (BRN), 6 (LT GRN)
    Right mirror moving from full left to full right: 20 (about 0.5 V to 4.5 V), 6 (5 V or more)
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Right Mirror Vertical Sensor Right mirror moves up/down: NORMAL
    Right mirror stopped: ABNORMAL    		 Power mirror control unit/19 (YEL), 6 (LT GRN)
    Right mirror moving from full left to full up: 19 (about 0.5 V to 4.5 V), 6(5 V or more)
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
  6. Exit the DATA LIST and select Function Test.
  7. Perform each of the function tests listed in the table (Refer to SYMPTOM - POWER SEAT INDICATOR ). 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 operate normally, perform the appropriate test at the control unit and terminal indicated in the table.
      • Voltage drop tests should be done with the ignition switch ON (II) and all connectors connected
      • Continuity tests should be done with the ignition switch OFF 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 does not operate with 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.

Power Seat Indicator 

SYMPTOM - POWER SEAT INDICATOR

Function Test Component and operation Control Unit/Terminal Number/ Test (If applicable) Possible cause if desired result is not obtained
Memory Seat Indicator 1 Memory seat indicator 1 illuminates Power seat control unit/A16 (GRN)
Disconnect power seat control unit connector A. Connect A16 to A9; memory seat indicator 1 should come on.
  • Faulty switch
  • An open in the wire
  • A short in the wire
Memory Seat Indicator 2 Memory seat indicator 2 illuminates Power seat control unit/A17 (RED)
Disconnect power seat control unit connector A. Connect A17 to A9; memory seat indicator 2 should come on.
  • Faulty switch
  • An open in the wire
  • A short in the wire

Power Seat 

SYMPTOM - POWER SEAT

Function Test Component and operation Control Unit/Terminal Number/ Test (If applicable) Possible cause if desired result is not obtained
Slide Motor-Full Forward Seat slides forward Power seat control unit/B1 (WHT/RED), B4 (BLK), B7 (WHT), B17(YEL)
Disconnect power seat control unit connector B. Connect B1 to B17 and B7 to B4; driver's seat should slide forward.
  • Faulty motor
  • An open in the wire
  • A short in the wire
Slide Motor-Full Backward Seat slides rearward Power seat control unit/B1 (WHT/RED), B4 (BLK), B7 (WHT), B17 (YEL)
Disconnect power seat control unit connector B. Connect B1 to B7 and B17 to B4; driver's seat should slide backward.
  • Faulty motor
  • An open in the wire
  • A short in the wire
Front UP-DOWN Motor-Full Up Front of seat moves up Power seat control unit/BI (WHT/RED), B4 (BLK), B6 (YEL), B16(ORN)
Disconnect power seat control unit connector B. Connect B1 to B16 and B6 to B4; front of driver's seat should move up.
  • Faulty motor
  • An open in the wire
  • A short in the wire
Front UP-DOWN Motor-Full Down Front of seat moves down Power seat control unit/B1 (WHT/RED), B4 (BLK), B6 (YEL), B16(ORN)
Disconnect power seat control unit connector B. Connect B1 to B6 and B16 to B4; front of driver's seat should move down.
  • Faulty motor
  • An open in the wire
  • A short in the wire
Rear Up-Down Motor-Full Up Rear of seat moves up Power seat control unit/B1 (WHT/RED), B2 (GRN), B4 (BLK), B10(BLU/GRN)
Disconnect power seat control unit connector B. Connect B1 to B2 and B10 to B4; driver's seat should move up.
  • Faulty motor
  • An open in the wire
  • A short in the wire
Rear Up-Down Motor-Full Down Rear of seat moves down Power seat control unit/B1 (WHT/RED), B2 (GRN), B4 (BLK), B10(BLU/GRN)
Disconnect power seat control unit connector B. Connect B1 to B10 and B2 to B4; driver's seat should move down.
  • Faulty motor
  • An open in the wire
  • A short in the wire
Recline Motor-Full Forward Seat back moves forward Power seat control unit/B1 (WHT/RED), B4 (BLK), B9 (GRY), B11 (RED)
Disconnect power seat control unit connector B. Connect B1 to B9 and B11 to B4; driver's seat back should move forward.
  • Faulty motor
  • An open in the wire
  • A short in the wire
Recline Motor-Full Backward Seat back moves backward Power seat control unit/B1 (WHT/RED), B4 (BLK), B9 (GRY), B11 (RED)
Disconnect power seat control unit connector B. Connect B1 to B11 and B9 to B4; driver's seat back should move backward.
  • Faulty motor
  • An open in the wire
  • A short in the wire
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