Honda Accord: System Description - Immobilizer System - Body Electrical - Honda Accord MK8 2008-2012 Service ManualHonda Accord: System Description

The vehicle is equipped with a Type Vll (GEN 5) immobilizer system that will disable 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 (Has built-in receiver), the driver's MICU (has 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 power 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 driver's MICU (imoes unit).

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

If the wrong key has been used or the code was not received or recognized s,


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

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    See also:

    DTC Troubleshooting
    DTC B10CF: Left Daytime Running Lights Circuit Malfunction NOTE: • Make sure the No. 15 (7.5 A) fuse in the driver's under-dash fuse/relay box is OK. • If you are troubleshooting mult ...

    Front Accessory Power Socket Test/Replacement
    NOTE: If all of the front and console accessory power sockets do not work, check the No. 18 (7.5: A> fuse in the driver's under-dash fuse/relay box and ground (G503) first. 1. Remove the cent ...

    Brake Booster Test
    Functional Test 1. With the ignition switch in LOCK (0), press the brake pedal several times to deplete the vacuum reservoir, then press the brake pedal hard and hold it for 15 seconds. If the bra ...