ELECTRONIC SHIFT LEVER SYSTEM SYSTEM DESCRIPTION


  1. SYSTEM DESCRIPTION

    The electronic shift lever system electrically controls the transmission parking lock mechanism and shift control mechanism.

    The shift control ECU judges the vehicle condition based on the information from each sensor, switch and ECU and performs appropriate shift control based on the driver's operation of the shift lever or P position switch.

    If a malfunction occurs in the electronic shift lever system, the master warning light illuminates in the combination meter assembly (according to the malfunction mode, the shift position indicator (P, R, N, D, M) turns off (not in all cases)), the MIL turns on (not in all cases) and a warning message is also displayed on the multi-information display.

    When the shift control ECU detects a malfunction, the DTC is stored in the ECM.

  2. SHIFT POSITION INDICATOR CONTROL


    1. Shift position indicator (P, R, N, D, M) ON (indicator illuminated (normal)) or OFF (indicator off (not normal)) is displayed.

      Shift Position Indicator
      DTC No. Indicator Suspected Cause
      P085011 Normal P switch malfunction (Low)
      P085015 Normal P switch malfunction (High)
      P085D46 Normal Data flash malfunction
      P085D94 May turn off Shift control ECU system monitoring malfunction
      P08A600 Normal Shift lever position sensor malfunction (Pattern malfunction 2)
      P08A662 Normal Shift lever position sensor malfunction (Pattern malfunction)
      P176087 Normal 2nd battery signal reception stop
      P1761A2 Normal Main power supply (Open)
      P1765A2 May turn off 2nd battery (Low malfunction)
      P176949 Goes off AD convertor (3) (AD time out) malfunction
      P176A87 Normal SBFS communication (Reception stop)
      P176B9F Normal SBFS circuit malfunction
      P176C62 Normal Range sensor deviation malfunction (Deviation malfunction)
      P176D12 Normal Start trigger (High malfunction)
      P183411 Normal Shift lever position sensor 1 malfunction (Low)
      P183415 Normal Shift lever position sensor 1 malfunction (High)
      P183A11 Normal Shift lever position sensor 2 malfunction (Low)
      P183A15 Normal Shift lever position sensor 2 malfunction (High)
      P183F12 Normal Shift lever position sensor 3 malfunction (High)
      P183F14 Normal Shift lever position sensor 3 malfunction (Low)
      P184512 Normal Shift lever position sensor 4 malfunction (High)
      P184514 Normal Shift lever position sensor 4 malfunction (Low)
      P1C8949 Goes off Park pawl motor control system (Initially drive) internal electronic failure
      P1C8A49 Goes off Park pawl motor control system (Learning value of shift immovable scope) internal electronic failure
      P1C8B49 Goes off Park pawl motor control system (Switching control lock/unlock) internal electronic failure
      P1C8C49 Goes off Park pawl motor control system (Lock/unlock position learning) internal electronic failure
      P1C8D49 Goes off Park pawl motor control system (After lock/unlock position learning) internal electronic failure
      P1C8E49 Goes off Park pawl motor control system (Driving request) internal electronic failure
      P1C8F14 May turn off U phase open/GND short malfunction
      P1C9414 May turn off V phase open/GND short malfunction
      P1C9914 May turn off W phase open/GND short malfunction
      P271A11 Normal Range sensor signal 1 (Low malfunction)
      P271A15 Normal Range sensor signal 1 (High malfunction)
      P271C11 Normal Range sensor signal 2 (Low malfunction)
      P271C15 Normal Range sensor signal 2 (High malfunction)
      P272C00 Goes off Park pawl motor driving time too long
      P272C73 Normal +B relay short malfunction
      U010000 Normal CAN communication (Powertrain bus) (CAN communication malfunction with ECM) (Communication lost)
      U010387 Goes off Shift control ECU communication lost
      U014000 Normal CAN communication (Powertrain bus) (CAN communication malfunction with main body ECU (multiplex network body ECU)) (Communication lost)
      U110700 Normal CAN communication (Powertrain bus) (CAN communication malfunction with certification ECU (Smart Key ECU Assembly)) (Communication lost)
      U117000 Normal CAN communication (Powertrain bus) (CAN communication malfunction with skid control ECU) (Communication lost)

  3. REJECT FUNCTION


    1. A reject function is equipped to reject incorrect shift switching when the shift lever is operated incorrectly.

    2. When the reject function operates, the current shift state is maintained or switches to the neutral (N). The buzzer in the combination meter assembly sounds (2 times consecutively or once) and the master warning light blinks. Also, the recommended handling method is displayed on the multi-information display.

      Reject Function Operation Chart
      Shift operation performed by reject function Shift state after reject function operation Message displayed on multi-information display
      Changes the shift state when battery voltage was low Maintains current shift state

      Battery low

      Shifting unavailable

      See owner's manual
      Changes the shift state to and from park (P) within a short period of time Park (P)

      Shifting unavailable

      Wait a moment and

      Shift again
      Changes the shift state from park (P) or neutral (N) to manual (M) Maintains current shift state

      Vehicle must be in D

      to shift into M

      • Changes the shift state to drive (D), reverse (R) or manual (M) when the engine switch is on (IG) and the engine is stopped

      • Changes the shift state from park (P) when the engine is cranking

      • Changes the shift state from park (P) when the required voltage to change the shift state is not available

      		 Park (P)

      Engine must be started

      to shift
      Changes the shift state from park (P) with brake pedal not depressed Park (P) Depress brake to shift
      Changes the shift state directly to manual (M) from reverse (R) Neutral (N)

      Shifted into N

      Vehicle must be in D

      to shift into M
      Changes the shift state to drive (D) while backing up Neutral (N)

      Shifted into N

      Vehicle must be stopped

      to shift into D
      Changes the shift state to reverse (R) while driving forward Neutral (N)

      Shifted into N

      Vehicle must be stopped

      to shift into R
      Changes the shift state to park (P) when driving Maintains current shift state -
      Changes the shift state form park (P) when accelerator and brake pedals depressed simultaneously Park (P) Release accelerator to shift
      Changes the shift state to neutral (N) when the system detects the shift lever was moved to N but not enough time elapsed for manual switching Maintains current shift state*

      Temporarily hold shift lever

      in N position

      to shift into N

      *: The shift state may shift to neutral (N) depending on the driving conditions.