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Presentation Transcript

Slide1: 

Honda Immobilizer

Slide2: 

1949 Chrysler, first with starter switch in ignition key

Theft deterrent passively or actively interrupts a circuit in the ignition, fuel, or start circuit.: 

Theft deterrent passively or actively interrupts a circuit in the ignition, fuel, or start circuit.

The key must be recognized in order for the vehicle to start. : 

The key must be recognized in order for the vehicle to start.

6 Immobilizer types : 

6 Immobilizer types

Basic immobilizer components: Key/transponder, lock cylinder (transceiver/receiver), Immobilizer control unit, ECM/PCM : 

Basic immobilizer components: Key/transponder, lock cylinder (transceiver/receiver), Immobilizer control unit, ECM/PCM

Transponder Key does not contain batteries : 

Transponder Key does not contain batteries

There are billions of ID codes.: 

There are billions of ID codes.

Slide9: 

Each system has a receiver unit which is an antenna attached to the ignition switch.

Receiver unit energizes the transponder (key) and the transponder transmits the key code to the immobilizer control unit. : 

Receiver unit energizes the transponder (key) and the transponder transmits the key code to the immobilizer control unit.

The ECM/PCM receives the unique serial code from the immobilizer control unit: 

The ECM/PCM receives the unique serial code from the immobilizer control unit

Immobilizer control unit sends a unique serial code to the ECM/PCM: 

Immobilizer control unit sends a unique serial code to the ECM/PCM

ECM/PCM confirms the ID code, it sends a ‘handshake’ back to the immobilizer control unit: 

ECM/PCM confirms the ID code, it sends a ‘handshake’ back to the immobilizer control unit

Serial codes are mutually recognized, the ECM/PCM enables the fuel system: 

Serial codes are mutually recognized, the ECM/PCM enables the fuel system

Type one system, disables start and fuel: 

Type one system, disables start and fuel

Slide16: 

Type 2 systems use a receiver connected to the immobilizer control unit which is built into the ECM/PCM

Type 3 and 4 systems use an immobilizer control unit and a receiver built into one unit: 

Type 3 and 4 systems use an immobilizer control unit and a receiver built into one unit

Type 5 and 6 systems use a combination immobilizer control unit & receiver along with an additional security IMOES unit (immobilizer entry system): 

Type 5 and 6 systems use a combination immobilizer control unit & receiver along with an additional security IMOES unit (immobilizer entry system)

Type 6, engine start then code is checked, no match = engine dies: 

Type 6, engine start then code is checked, no match = engine dies

Signal from the keyless access control unit is sent out to the ECM/PCM and IMOES: 

Signal from the keyless access control unit is sent out to the ECM/PCM and IMOES

Master key with black grip: ignition, door, trunk, & glove box. Valet key with gray grip: Ignition & door locks: 

Master key with black grip: ignition, door, trunk, & glove box. Valet key with gray grip: Ignition & door locks

traditional key and the sidewinder key (2002 & later): 

traditional key and the sidewinder key (2002 & later) Matrix H Key Cutting Machine Required for Sidewinder Key

Type 2 & 3 stamped with a "F" for fixed transponder codes. Type 4 - 6 stamped with a "V" for rolling transponder codes: 

Type 2 & 3 stamped with a "F" for fixed transponder codes. Type 4 - 6 stamped with a "V" for rolling transponder codes

Type 1 system: 1997 - 2001 Prelude, 1996 - 2004 3.5RL, & 1997-2005 NSX. : 

Type 1 system: 1997 - 2001 Prelude, 1996 - 2004 3.5RL, & 1997-2005 NSX.

Slide25: 

Type 1: Red learning key puts immobilizer system into a re-programming mode to add & delete keys. The red learning key will not start the engine.

A lost red learning key requires replacing the immobilizer control unit. : 

A lost red learning key requires replacing the immobilizer control unit.

Slide27: 

Green immobilizer system indicator confirms operation. Controlled by immobilizer unit in Types 1 through 5 and by CAN in Type 6.

Slide31: 

Vehicles normally come with three keys HDS needed to program additional keys

If one key is being added, you only need one programmed key from the customer (except Type 1, all programmed keys are needed.): 

If one key is being added, you only need one programmed key from the customer (except Type 1, all programmed keys are needed.)

At times, all programmed keys are needed for any system: 

At times, all programmed keys are needed for any system

Type 1 - 3 , ‘ilco’ Key Code Duplicator and ‘ilco’ programmable key blanks marked with "T5" can be used to make a duplicate key,: 

Type 1 - 3 , ‘ilco’ Key Code Duplicator and ‘ilco’ programmable key blanks marked with "T5" can be used to make a duplicate key,

Type 1 accept a total of 5 keys, not including the red learning key. Type 2 - 6 accept a total of 6 keys. : 

Type 1 accept a total of 5 keys, not including the red learning key. Type 2 - 6 accept a total of 6 keys.

If no programmed keys, or system failure, you can still start the engine using a cut key blank and a VIN specific Immobilizer ‘Brake Code’: 

If no programmed keys, or system failure, you can still start the engine using a cut key blank and a VIN specific Immobilizer ‘Brake Code’

5 digit brake code is entered using the ign switch & the parking brake: 

5 digit brake code is entered using the ign switch & the parking brake

Slide42: 

Cranks no start Verify system indicator is working Try using the key only without key rings or other keys attached

Slide43: 

HDS troubleshooting with System Check and Status Log

Results of system check: 

Results of system check

Status Log: 

Status Log

Diagnosis Using PID data : 

Diagnosis Using PID data

BAN indicates immobilizer fault: 

BAN indicates immobilizer fault

HDS need for replacing parts: 

HDS need for replacing parts

Early Type 2 requires all keys for PCM programming: 

Early Type 2 requires all keys for PCM programming

If lamp on with engine running it is a free start: 

If lamp on with engine running it is a free start