REAR CONTROL SWITCH INSPECTION

PROCEDURE


  1. INSPECT REAR POWER SEAT SWITCH LH


    1. Check rear power seat switch LH.


      1. Measure the voltage according to the value(s) in the table below.

        Tech Tips

        As the circuit has a diode, perform the measurement in diode mode.

        A01IF4SC02
        *1 Reclining Switch *2 Ottoman Switch (Open/Close)
        *3 Ottoman Switch (Expansion/Contraction) *4 Return Switch
        *5 SET Switch *6 M1 Switch
        *7 M2 Switch *8 Reading Light On/Off Switch
        *9 Reading Light Adjustment Switch (+) *10 Reading Light Adjustment Switch (-)
        *11 Heated and Ventilated Seat Main Switch *12 Seat Blower Indicator Light
        *13 Seat Heater Indicator Light *14 Connector A
        *15 Connector B - -
        *a

        Component without harness connected

        (Rear Power Seat Switch LH)

        		 - -
        Standard Voltage
        Reclining Switch
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A5 (LMRY)

        Negative (-) tester lead - A8 (LM2)

        		 Reclining switch (front) pressed 1.0 V or less

        Positive (+) tester lead - A5 (LMRY)

        Negative (-) tester lead - A14 (LUP)

        		 Reclining switch (rear) pressed
        Ottoman Switch (Open/Close)
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A6 (LM3)

        Negative (-) tester lead - A8 (LM2)

        		 Ottoman switch (open) pressed 1.0 V or less

        Positive (+) tester lead - A6 (LM3)

        Negative (-) tester lead - A14 (LUP)

        		 Ottoman switch (close) pressed
        Ottoman Switch (Expansion/Contraction)
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A7 (LM1)

        Negative (-) tester lead - A8 (LM2)

        		 Ottoman switch (expansion) pressed 1.0 V or less

        Positive (+) tester lead - A7 (LM1)

        Negative (-) tester lead - A14 (LUP)

        		 Ottoman switch (contraction) pressed
        Return Switch
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A5 (LMRY)

        Negative (-) tester lead - A16 (LMSR)

        		 Return switch pressed 1.0 V or less
        Seat Memory Switch
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A5 (LMRY)

        Negative (-) tester lead - A15 (LMSF)

        		 SET switch pressed 1.0 V or less

        Positive (+) tester lead - A6 (LM3)

        Negative (-) tester lead - A15 (LMSF)

        		 M1 switch pressed

        Positive (+) tester lead - A7 (LM1)

        Negative (-) tester lead - A15 (LMSF)

        		 M2 switch pressed

        If the result is not as specified, replace the rear power seat switch LH.

      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Reading Light Switch
        Tester Connection Switch Condition Specified Condition
        A2 (LLMP) - A22 (LGND) Reading light on/off switch pressed Below 50 Ω
        A4 (LL+) - A22 (LGND) Reading light adjustment switch (+) pressed
        A3 (LL-) - A22 (LGND) Reading light adjustment switch (-) pressed
        Heated and Ventilated Seat Main Switch
        Tester Connection Switch Condition Specified Condition
        A13 (LHTR) - A22 (LGND) Heated and ventilated seat main switch pressed Below 1 Ω
        A10 (LVSS) - A11 (LVSG) Seat ventilation MAX to seat heater MAX 1 Ω to 5 kΩ

        If the result is not as specified, replace the rear power seat switch LH.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        A1 (LIG) - B3 Always Below 1 Ω
        A19 (LFWD) - B5
        A20 (LBCK) - B4
        A21 (LDWN) - B2
        A22 (LGND) - B1

        If the result is not as specified, replace the rear power seat switch LH.

      4. Apply battery voltage to the switch connector and check that the rear power seat switch LH illuminates.

        OK
        Condition Specified Condition

        Battery positive (+) - A12 (LIL+)

        Battery negative (-) - A22 (LGND)

        		 Illumination illuminates

        If the result is not as specified, replace the rear power seat switch LH.

      5. Apply battery voltage to the switch connector and check that the rear power seat switch LH indicator illuminates.

        OK
        Condition Specified Condition

        Battery positive (+) - A1 (LIG)

        Battery negative (-) - A18 (LIND)

        		 Seat blower indicator light illuminates

        Battery positive (+) - A1 (LIG)

        Battery negative (-) - A17 (MPX2)

        		 Seat heater indicator light illuminates

        If the result is not as specified, replace the rear power seat switch LH.

  2. INSPECT REAR POWER SEAT SWITCH RH


    1. Check rear power seat switch RH.


      1. Measure the voltage according to the value(s) in the table below.

        Tech Tips

        As the circuit has a diode, perform the measurement in diode mode.

        A01IF4SC01
        *1 Reclining Switch *2 Ottoman Switch (Open/Close)
        *3 Ottoman Switch (Expansion/Contraction) *4 Return Switch
        *5 SET Switch *6 M1 Switch
        *7 M2 Switch *8 Reading Light On/Off Switch
        *9 Reading Light Adjustment Switch (+) *10 Reading Light Adjustment Switch (-)
        *11 Heated and Ventilated Seat Main Switch *12 Seat Blower Indicator Light
        *13 Seat Heater Indicator Light *14 Connector A
        *15 Connector B - -
        *a

        Component without harness connected

        (Rear Power Seat Switch RH)

        		 - -
        Standard Voltage
        Reclining Switch
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A5 (RMRY)

        Negative (-) tester lead - A8 (RM2)

        		 Reclining switch (front) pressed 1.0 V or less

        Positive (+) tester lead - A5 (RMRY)

        Negative (-) tester lead - A14 (RUP)

        		 Reclining switch (rear) pressed
        Ottoman Switch (Open/Close)
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A6 (RM3)

        Negative (-) tester lead - A8 (RM2)

        		 Ottoman switch (open) pressed 1.0 V or less

        Positive (+) tester lead - A6 (RM3)

        Negative (-) tester lead - A14 (RUP)

        		 Ottoman switch (close) pressed
        Ottoman Switch (Expansion/Contraction)
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A7 (RM1)

        Negative (-) tester lead - A8 (RM2)

        		 Ottoman switch (expansion) pressed 1.0 V or less

        Positive (+) tester lead - A7 (RM1)

        Negative (-) tester lead - A14 (RUP)

        		 Ottoman switch (contraction) pressed
        Return Switch
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A5 (RMRY)

        Negative (-) tester lead - A16 (RMSR)

        		 Return switch pressed 1.0 V or less
        Seat Memory Switch
        Tester Connection Switch Condition Specified Condition

        Positive (+) tester lead - A5 (RMRY)

        Negative (-) tester lead - A15 (RMSF)

        		 SET switch pressed 1.0 V or less

        Positive (+) tester lead - A6 (RM3)

        Negative (-) tester lead - A15 (RMSF)

        		 M1 switch pressed

        Positive (+) tester lead - A7 (RM1)

        Negative (-) tester lead - A15 (RMSF)

        		 M2 switch pressed

        If the result is not as specified, replace the rear power seat switch RH.

      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Reading Light Switch
        Tester Connection Switch Condition Specified Condition
        A2 (RLMP) - A22 (RGND) Reading light on/off switch pressed Below 50 Ω
        A4 (RL+) - A22 (RGND) Reading light adjustment switch (+) pressed
        A3 (RL-) - A22 (RGND) Reading light adjustment switch (-) pressed
        Heated and Ventilated Seat Main Switch
        Tester Connection Switch Condition Specified Condition
        A13 (RHTR) - A22 (RGND) Heated and ventilated seat main switch pressed Below 1 Ω
        A10 (RVSS) - A11 (RVSG) Seat ventilation MAX to seat heater MAX 1 Ω to 5 kΩ

        If the result is not as specified, replace the rear power seat switch RH.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        A1 (RIG) - B3 Always Below 1 Ω
        A19 (RFWD) - B5
        A20 (RBCK) - B4
        A21 (RDWN) - B2
        A22 (RGND) - B1

        If the result is not as specified, replace the rear power seat switch RH.

      4. Apply battery voltage to the switch connector and check that the rear power seat switch RH illuminates.

        OK
        Condition Specified Condition

        Battery positive (+) - A12 (RIL+)

        Battery negative (-) - A22 (RGND)

        		 Illumination illuminates

        If the result is not as specified, replace the rear power seat switch RH.

      5. Apply battery voltage to the switch connector and check that the rear power seat switch RH indicator illuminates.

        OK
        Condition Specified Condition

        Battery positive (+) - A1 (RIG)

        Battery negative (-) - A18 (RIND)

        		 Seat blower indicator light illuminates

        Battery positive (+) - A1 (RIG)

        Battery negative (-) - A17 (MPX3)

        		 Seat heater indicator light illuminates

        If the result is not as specified, replace the rear power seat switch RH.