Immobilizer Indicator Blinks

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before troubleshooting, check the items listed in General Check before Troubleshooting (see GENERAL CHECK BEFORE TROUBLESHOOTING ).

Turn the ignition switch to LOCK (0).
Connect the HDS, then turn the ignition switch to ON (II).
From the SYSTEM SELECTION MENU, enter IMMOBI, select IMMOBILIZER SETUP, then select System Check, Number of Keys, and Status Log.
Select SYSTEM CHECK.
Is SYSTEM CHECK indicated?

YES - Troubleshoot the immobilizer system according to the result of the SYSTEM CHECK .

NO - Go to step 5.
Turn the ignition switch to LOCK (0).
Enter the vehicle, and remove the ignition key from the ignition switch, then close the all doors.
Operate the keyless transmitter LOCK and UNLOCK several times in the vehicle.
Do the door lock actuators work normally?

YES - Go to step 8.

NO - Check for a poor ground and/or an open in the wire between the immobilizer-keyless control unit 7P connector terminal No. 7 and body ground (G101).
Turn the ignition switch to ON (II).
Back-probe and measure the voltage between immobilizer-keyless control unit 7P connector terminal No. 2 and body ground.
Is there battery voltage?

YES - Go to step 10.

NO - Check for a blown No. 20 (15 A) fuse in the under-dash fuse/relay box. If the fuse is OK, repair an open in the RED wire between the under-dash fuse/relay box and the immobilizer-keyless control unit.

Fig 1: Measuring Voltage Between Immobilizer-Keyless Control Unit 7P Connector Terminal No. 2 & Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Back-probe and measure the voltage between immobilizer-keyless control unit 7P connector terminal No. 7 and body ground.
Is there 0.2 V or more?

YES - Replace the immobilizer-keyless control unit (see IMMOBILIZER-KEYLESS CONTROL UNIT REPLACEMENT ).

NO - Repair poor connection or open between immobilizer-keyless control unit 7P connector terminal No. 7 and G101.

Fig 2: Measuring Voltage Between Immobilizer-Keyless Control Unit 7P Connector Terminal No. 7 & Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.