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System Input Test and Function Test

  1. Connect the HDS to the DLC.
  2. Turn the ignition switch to 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 performed with the ignition switch to ON (II) 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 turned to LOCK (0) and indicated terminals disconnected.
        DATA LIST

        Data List Input/Command Condition: Data List Indication Control Unit/Terminal Number/ Test (If applicable) Possible cause if desired result is not obtained
        Slide Switch Forward Slide switch forward: ON
        Switch released: OFF        		 Power seat control unit/A7, A1 (RED/WHT)
        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)
        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 (PNK)
        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 (PUR)
        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 (LT GRN)
        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
        Rear Up-down Switch Down Rear up-down switch down: ON
        Switch released: OFF        		 Power seat control unit/A3, A1 (GRY)
        Rear up-down switch released: 5 V or more
        Rear up-down switch down: 0 V
        A/T Gear Position Switch (P) Transmission range switch P position: ON
        Any other position than P: OFF        		 Power seat control unit/A31 (BLU/BLK)
        Transmission range switch P: 0V
        • Faulty switch
        • An open in the wire
        • Faulty power seat 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. 21 (7.5 A) fuse in the driver's under-dash fuse/relay box
        • An open in the wire
        • Faulty power seat 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 power seat 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 power seat control unit
        Recline Position Sensor Seat back moving forward or rearward: ON
        Seat not moving: OFF        		 Power seat control unit/A10 (BLU/WHT)
        Pulses as seat moves, 2.5 V average
        • Faulty sensor
        • An open in the wire
        • Faulty power seat control unit
        Rear Up-down Position 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 sensor
        • An open in the wire
        • Faulty power seat control unit
        Mirror Select Switch LEFT ('08-10 Touring models) Mirror select switch in LEFT position: ON
        Select switch in CENTER or RIGHT position: OFF        		 Power mirror control unit/2 (RED)
        Mirror Select switch LEFT: 0 V; CENTER or RIGHT: 5 V
        • Faulty switch
        • An open in the wire
        • A short to ground in the wire
        • Faulty power mirror control unit
        Mirror Select Switch RIGHT ('08-10 Touring models) Mirror select switch in RIGHT position: ON
        Select switch in CENTER or LEFT position: OFF        		 Power mirror control unit/8 (BLU/WHT)
        Mirror Select switch RIGHT: 0 V; CENTER or LEFT: 5 V
        • Faulty switch
        • An open in the wire
        • A short to ground in the wire
        • Faulty power mirror control unit
        Mirror Select Switch CENTER ('08-10 Touring models) Mirror select switch in CENTER position: ON
        Select switch in RIGHT or LEFT position: OFF        		 Power mirror control unit/2 (RED), 8 (BLU/WHT)
        Mirror Select switch CENTER: 5 V each RIGHT or [LEFT] : 2(5V) [2(0V)]
        • Faulty switch
        • An open in the wire
        • A short to ground in the wire
        • Faulty power mirror control unit
        Mirror Left Switch ('08-10 Touring models) Mirror select switch in LEFT, then RIGHT Mirror left switch pressed: ON
        Mirror switch released: OFF        		 Power mirror control unit/10 (BLU/BLK), 1 (WHT/RED), 9 (GRN/WHT), 2 (RED), 8 (BLU/ WHT)
        Mirror Select switch LEFT, left switch pressed: 10 (12 V), 1 (12V),9(5V),2(0V),8(5V) Mirror Select switch RIGHT, left switch pressed: 10 (12 V), 1 (5 V), 9(12V),2(5V),8(0V)
        • Faulty switch
        • An open in the wire
        • A short to ground in the wire
        • Faulty power mirror control unit
        Mirror Right Switch ('08-10 Touring models) Mirror select switch in LEFT, then RIGHT Mirror right switch pressed: ON
        Mirror switch released: OFF        		 Power mirror control unit/10 (BLU/BLK), 1 (WHT/RED), 9 (GRN/WHT), 2 (RED), 8 (BLU/ WHT)
        Mirror Select switch LEFT, right switch pressed: 10 (0 V), 1 (0 V), 9 (5 V), 2 (12 V), 8 (5 V) Mirror Select switch RIGHT, right switch pressed: 10 (0 V), 1 (5V),9(0V), 2 (5 V), 8 (12 V)
        • Faulty switch
        • An open in the wire
        • A short to ground in the wire
        • Faulty power mirror control unit
        Mirror Up Switch ('08-10 Touring models) Mirror select switch in LEFT, then RIGHT Mirror up switch pressed: ON
        Mirror switch released: OFF        		 Power mirror control unit/10 (BLU/BLK), 1 (WHT/RED), 9 (GRN/WHT), 2 (RED), 8 (BLU/ WHT)
        Mirror Select switch LEFT, up switch pressed: 10 (12 V), 1 (0 V), 9 (5 V), 2 (0 V), 8 (5 V) Mirror Select switch RIGHT, up switch pressed: 10(12 V), 1 (5 V), 9 <0 V), 2 (5 V), 8 (0 V)
        • Faulty switch
        • An open in the wire
        • A short to ground in the wire
        • Faulty power mirror control unit
        Mirror Down Switch ('08-10 Touring models) Mirror select switch in LEFT, then RIGHT Mirror down switch pressed: ON
        Mirror switch released: OFF        		 Power mirror control unit/10 (BLU/BLK), 1 (WHT/RED), 9 (GRN/WHT), 2 (RED), 8 (BLU/ WHT)
        Mirror Select switch LEFT, down switch pressed: 10 (0 V), 1 (12 V), 9 (5 V), 2 (12 V), 8 (5 V) Mirror Select switch RIGHT, down switch pressed: 10 (0 V), 1 (5 V), 9 (12 V), 2 (5 V), 8 (12 V)
        • Faulty switch
        • An open in the wire
        • A short to ground in the wire
        • Faulty power mirror control unit
        Ignition Switch for Power Mirror Control ('08-10 Touring models) Ignition switch on (II): ON
        Ignition switch off: OFF        		 Power mirror control unit/11 (YEL)
        Ignition switch on: Battery Voltage
        • Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box
        • An open in the wire
        • A short to ground in the wire
        • Faulty power mirror control unit
        Seat MEMO Switch Seat MEMO switch pressed: ON
        Switch released: OFF        		 Power seat control unit/A20 (WHT)
        Seat MEMO switch pressed: 0 V;
        Switch released: 5 V or more
        • Faulty switch
        • An open in the wire
        • Faulty power seat control unit
        Driver 1 position Switch Driver position 1 switch pressed: ON
        Switch released: OFF        		 Power seat control unit/A18 (BLU)
        Driver position 1 switch pressed: 0 V; Switch released: 5 V or more
        • Faulty switch
        • An open in the wire
        • Faulty power seat control unit
        Driver 2 position Switch Driver position 2 switch pressed: ON
        Switch released: OFF        		 Power seat control unit/A19 (BLU/YEL)
        Driver position 2 switch pressed: 0 V; Switch released: 5 V or more
        • Faulty switch
        • An open in the wire
        • Faulty power seat control unit
        Right Mirror Horizontal Sensor ('08-10 Touring models) Right mirror moves left/right: NORMAL
        Right mirror stopped: ABNORMAL        		 Power mirror control unit/7 (ORN), 6 (BLU), 20 (PUR)
        Right mirror moving from full right to full left: 7 (5 V), 6 (0 V), 20 (about 0.5 V to about 4.5 V)
        • Faulty sensor
        • An open in the wire
        • Faulty power mirror control unit
        Right Mirror Vertical Sensor ('08-10 Touring models) Right mirror moves up/down: NORMAL
        Right mirror stopped: ABNORMAL        		 Power mirror control unit/7 (ORN), 6 (BLU), 19 (YEL)
        Right mirror moving from full down to full up: 7 (5 V), 6 (0 V), 19 (about 0.5 V to about 4.5 V)
        • Faulty sensor
        • An open in the wire
        • Faulty power mirror control unit
        Left Mirror Horizontal Sensor ('08-10 Touring models) Left mirror moves left/right: NORMAL
        Right mirror stopped: ABNORMAL        		 Power mirror control unit/7 (ORN), 6 (BLU), 4 (WHT)
        Left mirror moving from full left to full right: 7 (5 V), 6 (0 V), 4 (about 0.5 V to about 4.5 V)
        • Faulty sensor
        • An open in the wire
        • Faulty power mirror control unit
        Left Mirror Vertical Sensor ('08-10 Touring models) Left mirror moves up/down: NORMAL
        Right mirror stopped: ABNORMAL        		 Power mirror control unit/7 (ORN),6(BLU),5(GRN)
        Left mirror moving from full down to full up: 7 (5 V), 6 (0 V), 5 (about 0.5 V to about 4.5 V)
        • Faulty sensor
        • An open in the wire
        • Faulty power mirror control unit
        Right Mirror Horizontal Motor command ('08-10 Touring models) 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
        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
  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 operate normally, perform the appropriate test at the control unit and terminal indicated in the table.
      • Voltage drop tests should be performed with the ignition switch to ON (II) and all connectors connected
      • Continuity tests should be perform with the ignition switch turned to LOCK (0) and indicated terminals disconnected
      • 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 

POWER SEAT INDICATOR CHART

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 to ground 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 to ground in the wire

Power Seat 

POWER SEAT CHART

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 (BRN), B7 (LT GRN), 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 to ground in the wire
Slide Motor-Full Backward Seat slides rearward Power seat control unit/B1 (WHT/RED), B4 (BRN), B7 (LT GRN), 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 to ground in the wire
Front UP-DOWN Motor-Full Up Front of seat moves up Power seat control unit/B 1 (WHT/RED), B4 (BRN), B6 (BRN/ WHT), 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 to ground in the wire
Front UP-DOWN Motor-Full Down Front of seat moves down Power seat control unit/B1 (WHT/RED), B4 (BRN), B6 (BRN/ WHT), 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 to ground in the wire
Rear Up-Down Motor-Full Up Rear of seat moves up Power seat control unit/B1 (WHT/RED), B2 (GRN), B4 (BRN), B10(BLU)
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 to ground in the wire
Rear Up-Down Motor-Full Down Rear of seat moves down Power seat control unit/BI (WHT/RED), B2 (GRN), B4 (BRN), B10(BLU)
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 to ground in the wire
Recline Motor-Full Forward Seat back moves forward Power seat control unit/B1 (WHT/RED), B4 (BRN), B9 (RED), B11 (GRY)
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 to ground in the wire
Recline Motor-Full Backward Seat back moves backward Power seat control unit/B1 (WHT/RED), B4 (BRN), B9 (RED), B11 (GRY)
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 to ground in the wire

Power Mirror 

POWER MIRROR CHART

Function Test Component and operation Control Unit/Terminal Number/ Test (If applicable) Possible cause if desired result is not obtained
Left Power Mirror-Full Up ('08-10 Touring models) Left power mirror moves up Power mirror control unit/11 (YEL), 22 (BLK), 14 (GRIM), 15 (BLU/BLK)
Disconnect the power mirror control unit connector. Connect terminal 11 to terminal 14 and terminal 22 to terminal 15; left mirror should move up.
  • Faulty actuator
  • An open in the wire
  • A short to ground in the wire
Left Power Mirror-Full Down ('08-10 Touring models) Left power mirror moves down Power mirror control unit/11 (YEL), 22 (BLK), 14 (GRIM), 15 (BLU/BLK)
Disconnect the power mirror control unit connector. Connect terminal 11 to terminal 15 and terminal 22 to terminal 14; left mirror should move down.
  • Faulty actuator
  • An open in the wire
  • A short to ground in the wire
Left Power Mirror-Full Right ('08-10 Touring models) Left power mirror moves right Power mirror control unit/11 (YEL), 22 (BLK), 16 (BLU/WHT), 15 (BLU/BLK)
Disconnect the power mirror control unit connector. Connect terminal 11 to terminal 16 and terminal 22 to terminal 15; left mirror should move right.
  • Faulty actuator
  • An open in the wire
  • A short to ground in the wire
Left Power Mirror-Full Left ('08-10 Touring models) Left power mirror moves left Power mirror control unit/11 (YEL), 22 (BLK), 16 (BLU/WHT), 15(BLU/BLK)
Disconnect the power mirror control unit connector. Connect terminal 11 to terminal 15 and terminal 22 to terminal 16; left mirror should move left.
  • Faulty actuator
  • An open in the wire
  • A short to ground in the wire
Right Power Mirror-Full Up ('08-10 Touring models) Right power mirror moves up Power mirror control unit/11 (YEL), 22 (BLK), 3 (GRN/WHT), 17 (RED/YEL)
Disconnect the power mirror control unit connector. Connect terminal 11 to terminal 3 and terminal 22 to terminal 17; right mirror should move up.
  • Faulty actuator
  • An open in the wire
  • A short to ground in the wire
Right Power Mirror-Full Down ('08-10 Touring models) Right power mirror moves down Power mirror control unit/11 (YEL), 22 (BLK), 3 (GRN/WHT), 17 (RED/YEL)
Disconnect the power mirror control unit connector. Connect terminal 11 to terminal 17 and terminal 22 to terminal 3; right mirror should move down.
  • Faulty actuator
  • An open in the wire
  • A short to ground in the wire
Right Power Mirror-Full Right ('08-10 Touring models) Right power mirror moves right Power mirror control unit/11 (YEL), 22 (BLK), 18 (WHT/RED), 17 (RED/YEL)
Disconnect the power mirror control unit connector. Connect terminal 11 to terminal 18 and terminal 22 to terminal 17; right mirror should move right.
  • Faulty actuator
  • An open in the wire
  • A short to ground in the wire
Right Power Mirror-Full Left ('08-10 Touring models) Right power mirror moves left Power mirror control unit/11 (YEL), 22 (BLK), 18 (WHT/RED), 17 (RED/YEL)
Disconnect the power mirror control unit connector. Connect terminal 11 to terminal 17 and terminal 22 to terminal 18; right mirror should move left.
  • Faulty actuator
  • An open in the wire
  • A short to ground in the wire
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