Toyota Highlander manuals

Toyota Highlander Service Manual: Engine immobilizer system

REGISTRATION

1. DESCRIPTION OF CODE REGISTRATION

(a) When adding master keys and sub-keys (additional registration).

  1.  Register the key code (immobilizer code) in the transponder key ECU.

Target ECU

See step

Transponder key ECU

3

(b) When replacing the transponder key ECU (new registration).

  1.  Register the key code (immobilizer code) in the transponder key ECU.

Target ECU

See step

Transponder key ECU

2

  1. Register the ECU COMMUNICATION ID between the ECM and the transponder key ECU.

Target ECU

See step

ECM

5

(c) When replacing the ECM.

  1.  Register the ECU COMMUNICATION ID between the ECM and the transponder key ECU.

Target ECU

See step

Transponder key ECU

5

2. KEY REGISTRATION IN AUTOMATIC REGISTRATION (NEW REGISTRATION)

(a) When an ignition key is inserted into the ignition cylinder, the key code (immobilizer code) registration is automatic. In this mode, a maximum of 4 key codes for 3 master keys and 1 sub-key can be registered.

Any order of registration for the master keys and sub-keys is fine because the transponder key ECU can distinguish between different types of keys.

HINT:

KEY REGISTRATION IN AUTOMATIC REGISTRATION (NEW REGISTRATION)


HINT:

KEY REGISTRATION IN AUTOMATIC REGISTRATION (NEW REGISTRATION)


(b) Finish the automatic key code registration mode.

The automatic key code registration mode can be forced to end when at least 1 key code (immobiliser code) for the master key has been registered.

  1.  Turn the ignition switch ON and OFF 5 times within 10 seconds using the already registered master key.

3. REGISTRATION OF ADDITIONAL KEY (ADDITIONAL REGISTRATION)

(a) Register an additional key by using the hand-held tester.

HINT:

NOTICE: When the ignition key cylinder has been replaced, locking and unlocking doors is possible with the new master key's transmitter module (taken from the original master key). However, the new master key will not be able to lock and unlock doors through the door key cylinder. Keep the original master key. If the new master key's transmitter module's battery fails, the original master key can be used to lock and unlock doors through the door key cylinder.

REGISTRATION OF ADDITIONAL KEY (ADDITIONAL REGISTRATION)


HINT:

4. ERASURE OF KEY CODE

(a) Erase key codes using the hand-held tester.

HINT:

ERASURE OF KEY CODE


HINT:

5. ECU COMMUNICATION ID REGISTRATION

NOTICE:

(a) Register the ECU communication ID.

  1.  Using SST, connect terminals TC and CG of the DLC3.
  2.  Turn the ignition switch ON (do not start the engine) and leave it as is for 30 minutes.
  3.  Turn the ignition switch OFF and disconnect terminals TC and CG.
  4.  Check that the engine starts.
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