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Home >> Acura >> 2012 >> RL >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Immobilizer System >> System Check

System Check

  1. Connect the HDS to the data link connector.
  2. Turn the ignition switch to ON (II).
  3. On the HDS screen, at SYSTEM SELECTION MENU, enter IMMOBI, then select IMMOBILIZER SET-UP, select SYSTEM CHECK, NUMBER OF KEYS AND STATUS LOG, then select SYSTEM CHECK.
  4. If the HDS displays NORMAL N-1, the immobilizer system is OK at this time, refer to the STATUS LOG . If the HDS displays any other messages, check as follows:
STATUS LOG INDICATION AND POSSIBLE CAUSE

System Check No. Status Log Indication System Check Possible Cause
A-1 Possible The key is not registered
  • This key is not registered in the immobilizer control unit-receiver. Try to register keys using the HDS.
  • Poor communication between the antenna and the immobilizer key because of interference caused by items such as key chains.
A-2 Possible Communication error between the key and immobilizer control unit-receiver
  • Intermittent interruption between transponder and immobilizer control unit-receiver.
  • The immobilizer key type is different. It is not for this vehicle but for another one or for another company's one.
  • Key failure (transponder failure)
  • Poor communication between the antenna and the immobilizer key because of interference caused by items such as key chains.
A-3 Possible No communication between the key and immobilizer control unit-receiver
  • The ignition switch was turned to ON (II) with a non-immobilizer key.
  • The immobilizer key type is different. It is not for this vehicle but for another one or for another company's one.
  • Key failure (transponder failure)
  • Poor communication between the antenna and the immobilizer key because of interference caused by items such as key chains.
  • Immobilizer control unit-receiver failure
B-1 Possible The PCM is not registered
  • The PCM was not registered. Try to register the PCM using the HDS.
  • Poor communication between the PCM and the immobilizer control unit-receiver because of low battery voltage.
  • Poor communication between the immobilizer control unit-receiver and the PCM because of electrical interference.
B-2 Possible Error of communication format in PCM
  • The PCM was not registered. Try to register the PCM using the HDS.
  • Poor communication between the PCM and the immobilizer control unit-receiver because of low battery voltage.
  • Poor communication between the immobilizer control unit-receiver and the PCM because of electrical interference.
C-1 Possible The MICU/IMOES unit is not registered The MICU/IMOES unit was not registered correctly. Try to register the MICU/IMOES unit using the HDS.
C-2 Possible Error of communication format between MICU/IMOES unit and immobilizer control unit-receiver
  • MICU/IMOES unit was not registered.
  • Poor communication between the PCM and the immobilizer control unit-receiver because of low battery voltage.
  • Poor communication between the PCM and the immobilizer control unit-receiver because electrical of interference.
  • Try to register the MICU/IMOES unit with the HDS.
D-1 Possible S-NET line short
  • Harness short from the PCM to the immobilizer control unit-receiver. (IMOCD (S-NET) line short)
  • Poor communication between the PCM and the immobilizer control unit-receiver because of low battery voltage.
  • Poor communication between the immobilizer control unit-receiver and the PCM because of electrical interference.
  • Immobilizer control unit-receiver failure
  • PCM failure
D-2 Possible No communication between imoes unit and immobilizer control unit-receiver
  • Blown fuse
  • Harness open from the MICU/IMOES unit to the immobilizer control unit-receiver.
  • Poor communication between the MICU/IMOES unit and the immobilizer control unit-receiver because of low battery voltage.
  • Poor communication between the MICU/IMOES unit and the immobilizer control unit-receiver because of electrical interference.
  • Immobilizer control unit-receiver unit failure
  • MICU/IMOES unit failure
D-3 Possible No communication between PCM and immobilizer control unit-receiver
  • Blown fuse
  • Harness open from the PCM to the immobilizer control unit-receiver.
  • Poor communication between the PCM and the immobilizer control unit-receiver because of low battery voltage.
  • Poor communication between the immobilizer control unit-receiver and the PCM because of electrical interference.
  • Immobilizer control unit-receiver failure
  • PCM failure
E-1 --- Initial registration of immobilizer control unit-receiver not completed The immobilizer control unit-receiver is not registered. Try to register the immobilizer control unit-receiver using the HDS.
E-2
E-3
E-4
E-5
F-1 --- Special Mode Turn the ignition switch to ON (II) and to LOCK (0) with the registered key.
F-2
F-3
F-4
F-5
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