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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 Selection 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.
      • Volt drop tests should be performed with the ignition switch ON and all connectors connected and the meter negative test lead attached to a good body ground.
      • Continuity tests should be performed with the ignition switch OFF and indicated terminals disconnected.
    SYSTEM INPUT TEST AND FUNCTION TEST

    Data List Input/Command Condition: Data List Indication Control Unit/Terminal Number/Test (If applicable) Possible cause if result is not obtained
    Slide Switch Forward Slide switch forward: ON
    Switch released: OFF    		 Power seat control unit/A6, A5 (YEL/BLK)
    Slide Switch Backward Slide switch back: ON
    Switch released: OFF    		 Power seat control unit/A16, A5 (YEL/RED)
    Recline Switch Forward Recline switch forward: ON
    Switch released: OFF    		 Power seat control unit/C1, A5 (RED/WHT)
    Recline Switch Backward Recline switch backward: ON
    Switch open: OFF    		 Power seat control unit/C7, A5 (RED/YEL)
    Front Up-Down Switch Up Front up-down switch up: ON
    Switch released: OFF    		 Power seat control unit/C2, A5 (GRN/WHT)
    Front Up-Down Switch Down Front up-down switch down: ON
    Switch released: OFF    		 Power seat control unit/C8, A5 (GRN/BLK)
    Rear Up-down switch Up Rear up-down switch up: ON
    Switch released: OFF    		 Power seat control unit/C3, A5 (BLU/ORN)
    Rear Up-down Switch Down Rear up-down switch down: ON
    Switch released: OFF    		 Power seat control unit/C9, A5 (BLU/RED)
    Reverse Switch Transmission in R: ON
    Transmission out of R: OFF    		 Power seat control unit/A17 (GRN)
    Transmission in R: 12 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/A9 (YEL/GRN)
    Ignition switch ON (II): 12 V
    • Blown No. 20 (7.5 A or 15 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    • Faulty control unit
    Slide Sensor Seat moving forward or rearward: ON
    Seat not moving: OFF    		 Power seat control unit/A2 (BLU)
    Pulses as seat moves, 2.5 V average
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Front Up-Down Sensor Seat front moving up/down: ON
    Seat not moving: OFF    		 Power seat control unit/A12 (GRN/BLK)
    Pulses as seat moves, 2.5 V average
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Recline Sensor Seat back moving forward or rearward: ON
    Seat not moving: OFF    		 Power seat control unit/C5 (YEL/BLK)
    Pulses as seat moves, 2.5 V average
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Rear Up-down Sensor Seat rear moving up/down: ON
    Seat not moving: OFF    		 Power seat control unit/C11 (RED/BLK)
    Pulses as seat moves, 2.5 V average
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Mirror Select Switch LEFT Mirror select switch in LEFT position: ON
    Select switch in CENTER or RIGHT position: OFF    		 Power mirror control unit/6 (PNK/BLK)
    Mirror Select switch LEFT: 0 V; CENTER or RIGHT: 5 V
    • Faulty switch
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Mirror Select Switch RIGHT Mirror select switch in RIGHT position: ON
    Select switch in CENTER or LEFT position: OFF    		 Power mirror control unit/19 (PNK)
    Mirror Select switch RIGHT: 0 V; CENTER or LEFT: 5 V
    • Faulty switch
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Mirror Select Switch CENTER Mirror select switch in CENTER position: ON
    Select switch in RIGHT or LEFT position: OFF    		 Power mirror control unit/6 (PNK/BLK), 19 (PNK)
    Mirror Select switch CENTER: 5 V each
    RIGHT or [LEFT] : 6 (5 V), 19 (0 V) [6 (0 V), 19 (5 V)]
    • Faulty switch
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Mirror Left Switch Mirror select switch in LEFT, then RIGHT Mirror left switch pressed: ON
    Mirror switch released: OFF    		 Power mirror control unit/20 (PNK/BLU), 21 (PUR/WHT), 22 (LT GRN), 6 (PNK/BLK), 19 (PNK)
    Mirror Select switch LEFT, left switch pressed: 20 (12 V), 21 (12 V), 22 (0 V), 6 (0 V), 19 (5 V) Mirror Select switch RIGHT, left switch pressed: 20 (12 V), 21 (0 V), 22 (12 V), 6 (5 V), 19 (0 V)
    • Faulty switch
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Mirror Right Switch Mirror select switch in LEFT, then RIGHT Mirror right switch pressed: ON
    Mirror switch released: OFF    		 Power mirror control unit/20 (PNK/BLU), 21 (PUR/WHT), 22 (LT GRN), 6 (PNK/BLK), 19 (PNK)
    Mirror Select switch LEFT, right switch pressed: 20 (0 V), 21 (0 V), 22 (0 V), 6 (12 V), 19 (5 V) Mirror Select switch RIGHT, left switch pressed: 20 (0 V), 21 (0 V), 22 (0 V), 6 (5 V), 19 (12 V)
    • Faulty switch
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Mirror Up Switch Mirror select switch in LEFT, then RIGHT Mirror up switch pressed: ON
    Mirror switch released: OFF    		 Power mirror control unit/20 (PNK/BLU), 21 (PUR/WHT), 22 (LT GRN), 6 (PNK/BLK), 19 (PNK)
    Mirror Select switch LEFT, up switch pressed: 20 (12 V), 21 (0 V), 22 (0 V), 6 (0 V), 19 (5 V) Mirror Select switch RIGHT, left switch pressed: 20 (12 V), 21 (0 V), 22 (0 V), 6 (5 V), 19 (0 V)
    • Faulty switch
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Mirror Down Switch Mirror select switch in LEFT, then RIGHT Mirror down switch pressed: ON
    Mirror switch released: OFF    		 Power mirror control unit/20 (PNK/BLU), 21 (PUR/WHT), 22 (LT GRN), 6 (PNK/BLK), 19 (PNK)
    Mirror Select switch LEFT, up switch pressed: 20 (12 V), 21 (0 V), 22 (0 V), 6 (0 V), 19 (5 V) Mirror Select switch RIGHT, left switch pressed: 20 (12 V), 21 (0 V), 22 (0 V), 6 (5 V), 19 (0 V)
    • Faulty switch
    • An open in the wire
    • A short in the wire
    • Faulty control unit
    Ignition Switch for Power Mirror Control Ignition switch on (II): ON
    Ignition switch off: OFF    		 Power mirror control unit/12 (YEL/GRN)
    Ignition switch on: Battery Voltage
    • Blown No. 20 (7.5 A or 15 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    • Faulty control unit
    Seat MEMO Switch Seat MEMO switch pressed: ON
    Switch released: OFF    		 Door multiplex control unit/A13 (GRY/BLU)
    Seat MEMO 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 position 1 switch pressed: ON
    Switch released: OFF    		 Door multiplex control unit/A4 (BLU/YEL)
    Driver position 1 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 position 2 switch pressed: ON
    Switch released: OFF    		 Door multiplex control unit/A3 (RED/YEL)
    Driver position 2 switch pressed: 0 V; Switch released: 5 V or more
    • Faulty switch
    • An open in the wire
    • Faulty control unit
    Right Mirror Horizontal Sensor Right mirror moves left/right: ON
    Right mirror stopped: OFF    		 Power mirror control unit/8 (RED/WHT), 7 (LT GRN/RED), 18 (GRY/RED)
    Right mirror moving from full right to full left: 8 (5 V), 7 (0 V), 18 (about 0.5 V to about 4.5 V)
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Right Mirror Vertical Sensor Right mirror moves up/down: ON
    Right mirror stopped: OFF    		 Power mirror control unit/8 (RED/WHT), 7 (LT GRN/RED), 17 (LT BLU)
    Right mirror moving from full down to full up: 8 (5 V), 7 (0 V), 17 (about 0.5 V to about 4.5 V)
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Left Mirror Horizontal Sensor Left mirror moves left/right: ON
    Right mirror stopped: OFF    		 Power mirror control unit/8 (RED/WHT), 7 (LT GRN/RED), 4 (WHT/BLK)
    Left mirror moving from full left to full right: 8 (5 V), 7 (0 V), 4 (about 0.5 V to about 4.5 V)
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Left Mirror Vertical Sensor Left mirror moves up/down: ON
    Right mirror stopped: OFF    		 Power mirror control unit/8 (RED/WHT), 7 (LT GRN/RED), 5 (GRY)
    Left mirror moving from full down to full up: 8 (5 V), 7 (0 V), 5 (about 0.5 V to about 4.5 V)
    • Faulty sensor
    • An open in the wire
    • Faulty control unit
    Right Mirror Horizontal Motor command Right mirror commanded to move left/right: ON
    Right mirror stopped: OFF    		 Function Test: Go to step  6 N/A
    Right Mirror Vertical Motor command Right mirror commanded to move up/down: ON
    Right mirror stopped: OFF    		 Function Test: Go to step  6 N/A
    Left Mirror Horizontal Motor command Left mirror commanded to move left/right: ON
    Left mirror stopped: OFF    		 Function Test: Go to step  6 N/A
    Left Mirror Vertical Motor command Left mirror commanded to move up/down: ON
    Left mirror stopped: OFF    		 Function Test: Go to step  6 N/A
    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
    Set 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
  6. Exit the Data list and select Function Test.
  7. Perform each of the function tests listed in the table below. 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, perform the appropriate test at the control unit and terminal indicated in the table.
      • Volt drop tests should be performed with the ignition switch ON (II) and all connectors connected
      • Continuity tests should be perform 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 will not operate by 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 

    SYSTEM INPUT TEST AND FUNCTION TEST

    Function Test Component and operation Control Unit/Terminal Number/Test (If applicable) Possible cause if result is not obtained
    Memory Seat Indicator 1 Memory seat indicator 1 Illuminates Door multiplex control unit/A22 (LT GRN/RED), A12 (LT BLU) Disconnect Door Multiplex control unit connector A. Apply 12 V to A22, ground to A12; memory seat indicator 1 should Illuminate.
    • Faulty switch
    • An open in the wire
    • A short in the wire
    Memory Seat Indicator 2 Memory seat indicator 2 Illuminates Door multiplex control unit/A22 (LT GRN/RED), A11 (GRY/RED) Disconnect Door Multiplex control unit connector A. Apply 12 V to A22, ground to A11; memory seat indicator 2 should Illuminate.
    • Faulty switch
    • An open in the wire
    • A short in the wire

    Power Seat 

    SYSTEM INPUT TEST AND FUNCTION TEST

    Function Test Component and operation Control Unit/Terminal Number/Test (If applicable) Possible cause if result is not obtained
    Slide Motor-Full Forward Seat slides forward Power seat control unit/B3 (WHT/BLU), B7 (BLK), B1 (BLU), B5 (BLU/YEL) Disconnect power seat control unit connector B. Connect B3 to B1 and B7 to B5; 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/B3 (WHT/BLU), B7 (BLK), B1 (BLU), B5 (BLU/YEL) Disconnect power seat control unit connector B. Connect B3 to B5 and B7 to B1; driver's seat should slide rearward.
    • 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/B3 (WHT/BLU), B7 (BLK), B4 (GRN), B8 (GRN/YEL) Disconnect power seat control unit connector B. Connect B3 to B8 and B7 to B4; front of driver's seat should move down.
    • 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/B3 (WHT/BLU), B7 (BLK), B4 (GRN), B8 (GRN/YEL) Disconnect power seat control unit connector B. Connect B3 to B4 and B7 to B8; 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 Seat moves up Power seat control unit/D4 (WHT/RED), D1 (BLK), D5 (RED/ YEL), D2 (RED) Disconnect power seat control unit connector D. Connect D4 to D5 and D1 to D2; driver's seat should move up.
    • Faulty motor
    • An open in the wire
    • A short in the wire
    Rear Up-Down Motor-Full Down Seat moves down Power seat control unit/D4 (WHT/RED), D1 (BLK), D5 (RED/ YEL), D2 (RED) Disconnect power seat control unit connector D. Connect D4 to D2 and D1 to D5; 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/D4 (WHT/RED), D1 (BLK), D6 (YEL/GRN), D3 (YEL) Disconnect power seat control unit connector D. Connect D4 to D6 and D1 to D3; 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/D4 (WHT/RED), D1 (BLK), D6 (YEL/GRN), D3 (YEL) Disconnect power seat control unit connector D. Connect D4 to D3 and D1 to D6; driver's seat back should move backward.
    • Faulty motor
    • An open in the wire
    • A short in the wire

    Power Mirror 

    SYSTEM INPUT TEST AND FUNCTION TEST

    Function Test Component and operation Control Unit/Terminal Number/Test (If applicable) Possible cause if result is not obtained
    Left Power Mirror-Full Up Left power mirror moves up Power mirror control unit/26 (GRY/BLU), 25 (BLK), 3 (GRN/YEL), 2 (BLU/BLK) Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 3 and terminal 25 to terminal 2; left mirror should move up.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Left Power Mirror-Full Down Left power mirror moves down Power mirror control unit/26 (GRY/BLU), 25 (BLK), 3 (GRN/YEL), 2 (BLU/BLK) Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 2 and terminal 25 to terminal 3; left mirror should move down.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Left Power Mirror-Full Right Left power mirror moves right Power mirror control unit/26 (GRY/BLU), 25 (BLK), 16 (BLU/WHT), 2 (BLU/BLK) Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 16 and terminal 25 to terminal 2; left mirror should move right.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Left Power Mirror-Full Left Left power mirror moves left Power mirror control unit/26 (GRY/BLU), 25 (BLK), 16 (BLU/WHT), 2 (BLU/BLK) Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 2 and terminal 25 to terminal 16; left mirror should move left.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Right Power Mirror-Full Up Right power mirror moves up Power mirror control unit/26 (GRY/BLU), 25 (BLK), 15 (GRN), 14 (RED/YEL) Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 15 and terminal 25 to terminal 14; right mirror should move up.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Right Power Mirror-Full Down Right power mirror moves down Power mirror control unit/26 (GRY/BLU), 25 (BLK), 15 (GRN), 14 (RED/YEL) Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 14 and terminal 25 to terminal 15; right mirror should move down.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Right Power Mirror-Full Right Right power mirror moves right Power mirror control unit/26 (GRY/BLU), 25 (BLK), 1 (WHT or BRN), 14 (RED/YEL) Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 1 and terminal 25 to terminal 14; right mirror should move right.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Right Power Mirror-Full Left Right power mirror moves left Power mirror control unit/26 (GRY/BLU), 25 (BLK), 1 (WHT or BRN), 14 (RED/YEL) Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 14 and terminal 25 to terminal 1; right mirror should move left.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Tilt Down Mirror select switch LEFT [RIGHT] : Left [RIGHT] mirror tilts down 5 degrees Power mirror control unit/26 (GRY/BLU), 25 (BLK), 2 (BLU/BLK) [14 (RED/YEL)], 3 (GRIM/YEL) [15 (GRIM)] Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 2 [14] and terminal 25 to terminal 3 [15]; left [right] mirror should move down.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
    Tilt Up Mirror select switch LEFT [RIGHT] : Left [RIGHT] mirror tilts up 5 degrees Power mirror control unit/26 (GRY/BLU), 25 (BLK), 3 (GRIM/YEL) [15 (GRIM)], 2 (BLU/BLK) [14 (RED/YEL)] Disconnect the power mirror control unit connector. Connect terminal 26 to terminal 3 [15] and terminal 25 to terminal 2 [14]; left [right] mirror should move up.
    • Faulty actuator
    • An open in the wire
    • A short in the wire
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