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ELECTRONIC SHIFT LEVER SYSTEM SYSTEM DESCRIPTION

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  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)) 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 hybrid vehicle control ECU.

  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.

      Table 1. Shift Position Indicator
      DTC No. Indicator Suspected Cause
      P085011 Normal Park/Neutral Switch Circuit Short to Ground
      P085015 Normal Park/Neutral Switch Circuit Short to Auxiliary Battery or Open
      P085D46 Normal Gear Shift Control Module "A" Calibration / Parameter Memory Failure
      P085D94 May turn off Gear Shift Control Module "A" Unexpected Operation
      P08A600 Normal Gear Lever Position Sensor Correlation Failure
      P08A662 Normal Gear Lever Position Sensor Signal Compare Failure
      P176087 Normal Lost Communication with Sub Battery Module Missing Message
      P1761A2 May turn off Gear Shift Control Module "A" System Voltage Low
      P1765A2 May turn off Sub Battery Module System Voltage Low
      P176949 May turn off Gear Shift Control Module "A" Internal Electronic Failure
      P176A87 Normal Lost Communication with Fail Safe Signal (Gear Shift Control Module "A") Missing Message
      P176B9F Normal Fail Safe Signal (Gear Shift Control Module "A") Stuck Off
      P176C62 May turn off Park Pawl Position Sensor "A"/"B" Signal Compare Failure
      P176D12 Normal IG2 Signal (Gear Shift Control Module "A") Circuit Short to Auxiliary Battery
      P183411 Normal Gear Lever Y Position Sensor 1 Circuit Short to Ground
      P183415 Normal Gear Lever Y Position Sensor 1 Circuit Short to Auxiliary Battery or Open
      P183A11 Normal Gear Lever Y Position Sensor 2 Circuit Short to Ground
      P183A15 Normal Gear Lever Y Position Sensor 2 Circuit Short to Auxiliary Battery or Open
      P183F12 Normal Gear Lever X Position Sensor 1 Circuit Short to Auxiliary Battery
      P183F14 Normal Gear Lever X Position Sensor 1 Circuit Short to Ground or Open
      P184512 Normal Gear Lever X Position Sensor 2 Circuit Short to Auxiliary Battery
      P184514 Normal Gear Lever X Position Sensor 2 Circuit Short to Ground or Open
      P1C8949 May turn off Park Pawl Motor Control System (Initially Drive) Internal Electronic Failure
      P1C8A49 May turn off Park Pawl Motor Control System (Leaning Value of Shift Immovable Scope) Internal Electronic Failure
      P1C8B49 May turn off Park Pawl Motor Control System (Switching Control Lock/Unlock) Internal Electronic Failure
      P1C8C49 May turn off Park Pawl Motor Control System (Lock/Unlock Position Learning) Internal Electronic Failure
      P1C8D49 May turn off Park Pawl Motor Control System (After Lock/Unlock Position Learning) Internal Electronic Failure
      P1C8E49 May turn off Park Pawl Motor Control System (Driving Request) Internal Electronic Failure
      P1C8F14 May turn off Park Pawl Motor Phase U Circuit Short to Ground or Open
      P1C9414 May turn off Park Pawl Motor Phase V Circuit Short to Ground or Open
      P1C9914 May turn off Park Pawl Motor Phase W Circuit Short to Ground or Open
      P271A11 May turn off Park Pawl Position Sensor "A" Circuit Short to Ground
      P271A15 May turn off Park Pawl Position Sensor "A" Circuit Short to Auxiliary Battery or Open
      P271C11 May turn off Park Pawl Position Sensor "B" Circuit Short to Ground
      P271C15 May turn off Park Pawl Position Sensor "B" Circuit Short to Auxiliary Battery or Open
      P272C00 May turn off Park Pawl Position Sensor "B" Circuit Short to Auxiliary Battery or Open
      P272C73 Normal Park Pawl Motor Relay System Actuator Stuck Closed
      U010387 May turn off Lost Communication with Gear Shift Control Module "A" (Hybrid/EV Battery Local Bus) Missing Message
      U014000 Normal Lost Communication with Body Control Module (Sub) Missing Message
      U029300 Normal Lost Communication with Hybrid/EV Powertrain Control Module from Gear Shift Control Module "A"
      U110700 Normal Lost Communication with Power Management Module (Gear Shift Control Module "A")
      U117000 Normal Lost Communication with Brake System Control Module (Gear Shift Control Module "A")

  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.

      Table 2. 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 auxiliary 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 power switch is on (IG) and the READY indicator is off

      • Changes the shift state from park (P) when the READY indicator is blinking or 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)

      Hybrid system must be READY

      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.