Honda Fit manuals

Honda Fit: Immobilizer System Description

The vehicle is equipped with a Type VII immobilizer system that disables the vehicle unless a programmed ignition key is used.

This system consists of a transponder combined with a keyless transmitter, an immobilizer-keyless control unit, the MICU (has a built-in imoes unit), an immobilizer indicator, and the ECM/PCM.

When the immobilizer key (programmed by the HDS) is inserted into the ignition switch and turned to ON (II), the immobilizer-keyless control unit sends a signal to the transponder. The transponder then sends a coded signal back to the immobilizer-keyless control unit which then sends a coded signal to the ECM/PCM and the MICU (imoes unit).

The ECM/PCM and MICU (imoes unit) identify this coded signal, then voltage is supplied to the fuel pump.

Immobilizer key(Without keyless transmitter)Immobilizer key(With keyless transmitter)Under-dash fuse/relay box,with driver's MICU (Has a built-in Imoes unit)Transmitter(Includingtransponder)Steering lock assemblyImmobilizer-keylesscontrol unit*(Has a built-in receiver)ECM/PCM*: The immobilizer-keyless control unit can store up to 6 immobilizer keys per vehicle; the original 2 keys that came with the vehicle, and up to four more keys can be added.

If the wrong key is used or the code was not received or recognized the indicator flashes once, then it blinks until the ignition switch is turned to LOCK (0). When the ignition switch is turned to the LOCK (0) position, the indicator blinks ten times to signal that unit has reset correctly, then the indicator goes off.

See also:

Tire Pressure Sensor Replacement (USA models)
Removal notice Each tire pressure sensor contains a lithium anode battery that is not removable. The complete tire pressure sensor should be disposed of according t ...

Change Lever Clearance Inspection (M/T)
Measure the clearance between the change lever (A) and the select lever (B) with a feeler gauge (C). If the clearance is more than the service limit, go to step 2. ...

Hood Adjustment
NOTE: Put on gloves to protect your hands. Take care not to scratch the hood, the body, or other related parts. Remove the cowl cover. Slightly loosen each bo ...

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