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Door Lock/Unlock Control

  1. Data flow
    Fig 1: Door Lock/Unlock Control Communication Diagram
    G06873629Courtesy of HYUNDAI MOTOR CO.
  2. Central Door Lock/unlock
    1. If Driver Door Key Lock Switch or Passenger Door Key Lock Switch turns ON, turn Door Lock Relay output ON during T1. But prohibit the output when KEY IN ON and IGN1 are ON.
    2. When Driver Door Key Unlock and Passenger Door Key Unlock turn ON, turn Door Unlock Relay and Driver Door Unlock Relay output ON during T1.
    3. Turn CENTRAL LOCK *1) ON during T1 when receiving TX LOCK signal.

      But ignore LOCK input when Driver Door SW or Passenger Door SW is ON.

    4. Turn CENTRAL UNLOCK *2) ON during T1 when receiving TX UNLOCK signal.
    5. LOCK/UNLOCK by SAFETY KNOB is not interlock (Mechanical operation).
    6. Malfunction should be free when joining BATTERY (Also malfunction should be free at the location of Key In Switch ON).
    7. Input which is less than 60msec should not be received (KEY LOCK/UNLOCK Switch).
    8. Do not execute the output of DOOR LOCK (UNLOCK) by KNOB change.
    9. If Power Window Lock Switch is ON, turn Lock Relay output ON for T1. (NORTH AMERICA)
    10. If Power window Lock Switch is ON, turn CENTRAL UNLOCK output ON for T1. (NORTH AMERICA) But, inhibit operating by Power window Unlock Switch at Lock state by TX.

      *1) CENTRAL LOCK: Refer to control mode for each Spec.

      *2) CENTRAL LOCK: Refer to control mode for each Spec.

      Fig 2: Door Unlock Relay Blinking Pattern
      G06873630Courtesy of HYUNDAI MOTOR CO.

      T1: 0.5 ± 0.1sec

  3. 2-Turn Unlock
    1. If Driver Door Key Unlock Switch turns OFF from ON within T1 after Driver Door Key Unlock Switch turns ON from OFF (Driver Door Unlock Switch becomes UNLOCKED mechanically and does not output BCM.), turn Driver Unlock Relay, Unlock Relay (Central Unlock) output ON during T2.
    2. If TX UNLOCK is received within T1 after Driver Door Key Unlock Switch turns ON from OFF (Driver Door Unlock Switch becomes UNLOCKED mechanically and does not output BCM.), turn Driver Unlock Relay and Unlock Relay (Central Unlock) output ON during T2.
    3. Turn Driver Unlock Relay output ON during T2 when receiving TX UNLOCK signal. However, turn Driver Unlock Relay, Unlock Relay (Central Unlock) output during T2 if TX UNLOCK is received within T1.
    4. Also, turn Driver Unlock Relay, Unlock Relay (Central Unlock) ON during T2 in case that Driver Door Key Unlock Switch turns ON from OFF within T1 after receiving TX UNLOCK.
    5. Regard as the same TX even though different signal which is registered within T1 is received.
    6. If turn Lock Relay output ON by TX Lock or Driver/Assist Key lock Switch, T1 is initialized.
    7. Assist Key Unlock Switch turns ON from OFF, turn Driver Unlock Relay and Unlock Relay (Central Unlock) output ON during T2.
      Fig 3: Unlock Relay Blinking Pattern
      G06873631Courtesy of HYUNDAI MOTOR CO.
      Fig 4: Driver Unlock Relay Blinking Pattern
      G06873632Courtesy of HYUNDAI MOTOR CO.

      T1: 4 ± 1sec, T2: 0.5 ± 0.1sec

  4. 2-Turn Unlock (SMK)
    1. All DOOR UNLOCK output are ON during T2 if Driver door unlock switch is unlock within 3s and Driver door key unlock switch is OFF→ON within T1 after Driver door key unlock switch is OFF→ON (mechanically, Driver door unlock switch is unlocked and BCM signal is not output).
    2. All DOOR UNLOCK output are ON during T2 if Driver door unlock switch is UNLOCK within 3s and SMK/RKE command=UNLOCK is received within T1 after Driver door key unlock switch is OFF → ON (mechanically, Driver door unlock switch is unlocked and BCM signal is not output).
    3. DRIVER DOOR UNLOCK signal is output for T2 when SMK/RKE command=UNLOCK signal is received. But, ALL DOOR UNLOCK signals are output for T2 if SMK/RKE command=UNLOCK signal is received within T1.
    4. All DOOR UNLOCK output are ON during T2 if Driver door key unlock switch is OFF→ON (mechanically, Driver door unlock switch is unlocked and BCM signal is not output) within T1 and Driver door unlock switch is UNLOCK within 3s after SMK/RKE command = UNLOCK received.
    5. DRIVER DOOR UNLOCK output is ON during T2 when Passive unlock ON & P_FL ON is input. But, ALL DOOR UNLOCK output are ON during T2 if Passive unlock ON & P_FL ON is input within T1.
    6. DRIVER DOOR UNLOCK output is ON during T2 when Passive unlock ON & P_FL ON is input. But, ALL DOOR UNLOCK output are ON during T2 if Driver door key unlock switch is OFF → ON within T1.
    7. DRIVER DOOR UNLOCK output is ON during T2 when Passive unlock ON & P_FL ON is input. But, ALL DOOR UNLOCK output are ON during T2 if SMK/RKE command = UNLOCK is received within T1.
    8. Driver door unlock switch UNLOCK state of the output from the DRIVER DOOR UNLOCK does not require.
    9. ALL DOOR UNLOCK output will be according to DRIVER DOOR UNLOCK output when the DRIVER DOOR UNLOCK output of the ALL DOOR UNLOCK output requirements.
  5. IGN Key Reminder
    1. This function will not be operated if the speed of cars exceeds 3km/h.
    2. Perform Unlock Relay output for 1s after 0.5s when the condition becomes to be KEY IN = ON& Driver Door open Switch = OPEN & Driver Door Unlock Switch = LOCK (Regions for North America).
    3. Perform Driver Unlock Relay output for 1s after 0.5s when the condition becomes to be KEY IN = ON & Driver Door open Switch = OPEN & Driver Door Unlock Switch = LOCK.(Spec for North America ONLY)
    4. Perform Unlock Relay output for 1s in 0.5s when the condition becomes to be KEY IN = ON & Assist Door Open Switch =OPEN & Assist Door Unlock Switch = LOCK.
    5. Output CENTRAL UNLOCK for 1s in 0.5s based on (4) if (1), (3) and (4) are satisfied.
    6. Output UNLOCK up to 3 times (excluding output for 1s) if LOCK condition is maintained though UNLOCK output is performed for 1s by (2), (3), (4) (cycle for 1s: 0.5s ON/OFF).
    7. Try UNLOCK once when DOOR is CLOSED while keeping LOCK condition after performing (6).
    8. Output Driver Unlock Relay once only for 1s when Driver Door open Switch is closed within 0.5s since Driver Door Unlock Switch is changed from UNLOCK to LOCK during KEY IN = ON (North America SPEC ONLY).
    9. Output CENTRAL UNLOCK once only for 1s when Assist Door Open Switch is closed within 0.5s since Assist Door Unlock Switch is changed from UNLOCK to LOCK during KEY IN = ON.
    10. Output Driver Unlock Relay for 1s when Driver Door Unlock Switch becomes LOCK from UNLOCK within 0.5s since Driver Door open Switch is changed from OPEN to CLOSE during KEY IN = ON (North America SPEC ONLY)
    11. Output CENTRAL UNLOCK once only for 1s if Assist Door Unlock Switch becomes to be LOCK from UNLOCK within 0.5s since Assist Door Open Switch is changed from OPEN to CLOSE during KEY IN = ON.
    12. Judge if RETRY output is performed or not at the point of the beginning of RETRY output (in 1.5s from the initial UNLOCK output).
    13. Output UNLOCK though the condition is not kept for 0.5sec after realizing that of UNLOCK. But, do not output UNLOCK in case that KEY IN is OFF at the point of 0.5s passed after realizing the condition by the change of UNLOCK → LOCK in Driver Door Unlock Switch or Assist Door Unlock Switch.
      Fig 5: IGN Key Reminder Blinking Pattern
      G06873633Courtesy of HYUNDAI MOTOR CO.

      T1, T3: 0.5 ± 0.1sec, T2: 1 ± 0.1sec,

      T4: 0.5sec Max

      ** KEY IN ON: Key In ON or IGN1 ON or IGN2 ON

      KEY IN OFF: Key In OFF and IGN1 OFF and IGN2 OFF

  6. Crash Door Unlock
    1. Always perform CENTRAL UNLOCK *9) output whenever Crash Input signal is inputted while IGN1 is ON.
    2. Keep CENTRAL UNLOCK output for the time left though IGN1 turns OFF from ON while outputting CENTRAL UNLOCK.
    3. Do not output CENTRAL UNLOCK if IGN1 switch turns ON from OFF after Crash Input signal is already inputted.
    4. Output CENTRAL UNLOCK during T3 if Driver Door Unlock switch or Passenger Door Unlock switch or Rear Right Door Unlock switch or Rear Left Door Unlock switch turns to LOCK from UNLOCK after outputting CENTRAL UNLOCK.
    5. Do not perform AUTO DOOR LOCK function at the condition of CRASH UNLOCK.
    6. CRASH DOOR UNLOCK function has priority to LOCK/UNLOCK control by other functions.
    7. Ignore the request for LOCK/UNLOCK by other functions while or after outputting CRASH DOOR UNLOCK. But, control LOCK/UNLOCK by other functions if IGN1 switch becomes OFF.
      Fig 6: Crash Door Unlock Blinking Pattern
      G06873634Courtesy of HYUNDAI MOTOR CO.

      T1: 5 sec

      * IGN KEY_ON: ON = KEY IN or FOB IN or ACC ON or IGN1 ON or IGN2 ON

      OFF = KEY OUT or FOB OUT or ACC OFF or IGN1 OFF or IGN2 OFF

  7. Auto Door Lock (User Option)
    1. AUTO DOOR LOCK is classified into non-activation/ 15km activation/ shift lever change by using SCAN TOOL.
    2. On condition of IGN1 switch ON, turn Door Lock Relay output ON within T1 when keeping more than setting speed in (1). But, do not output LOCK if all DOORS are LOCKED or FAIL at first.
    3. Perform outputting LOCK up to 3 times (cycle for 1s) if either of DOORS is UNLOCKED after outputting LOCK in (2). But, ignore the DOOR that has changed to LOCK condition from UNLOCK during the output 3 times.
    4. Regard the respective DOOR FAILED if it is UNLOCKED after outputting 3 times.
    5. Output LOCK once only if the DOOR is UNLOCKED after the failed DOOR changes (UNLOCK→LOCK).
    6. Output LOCK once only if DOOR which was LOCKED after outputting LOCK in (2) becomes to be UNLOCKED. But, output LOCK once for the respective DOOR although it keeps UNLOCK after LOCK output.
    7. Clear the FAILED DOOR when IGN1 switch is OFF.
    8. Do not perform AUTO DOOR LOCK function on condition of CRASH UNLOCK.
      Fig 7: Auto Door Lock (User Option) Blinking Pattern
      G06873635Courtesy of HYUNDAI MOTOR CO.

      T1: Max 1.5sec, T2: 0.5 ± 0.1sec

      *1 ON (UNLOCK): Driver DR Unlock switch | Passenger DR Unlock switch | Rear Right DR Unlock switch | Rear Left DR Unlock switch UNLOCK

      OFF (LOCK): Driver DR Unlock switch | Passenger DR Unlock switch | Rear Right DR Unlock switch | Rear Left DR Unlock switch LOCK

  8. Auto Door Unlock (User Option)
    1. AUTO DOOR UNLOCK is classified into non-activation / Key Off / Driver safety knob state / shift lever change by using SCAN TOOL.
    2. If it is set up to be activated, turn DR Unlock Relay ON when turning KEY IN OFF after KEY IN is ON. (But, if all conditions for KNOB are UNLOCK, it will not output.)
    3. AUTO DOOR UNLOCK should operate after outputting AUTO DOOR LOCK (UNLOCK OUTPUT will not occur though the key is removed later if LOCK OUTPUT did not occur because all KNOBS are already LOCKED even though it reached to the operating speed of AUTO DOOR LOCK.)
      Fig 8: Auto Door Unlock (User Option) Blinking Pattern
      G06873636Courtesy of HYUNDAI MOTOR CO.

      T1: 0.5 ± 0.1sec

      *1 ON (UNLOCK): Driver DR Unlock switch | Passenger DR Unlock switch | Rear Right DR Unlock switch | Rear Left DR Unlock switch UNLOCK

      OFF (LOCK): Driver DR Unlock switch | Passenger DR Unlock switch | Rear Right DR Unlock switch | Rear Left DR Unlock switch LOCK

      *2 KEY IN ON: Key In ON or IGN1 ON or IGN2 ON

      KEY IN OFF: Key In OFF and IGN1 OFF and IGN2 OFF

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