System Check (Current status) and Status Log (History log if the immobilizer system kept engine from running)

NOTE: The HDS can be used to:

Check the state of the immobilizer key registration and the AMMCO (S-NET) line by doing a SYSTEM CHECK.
Check the number of times the immobilizer-keyless control unit does not permit the engine to run by checking the STATUS LOG.

Connect the HDS to the data link connector (DLC), then turn the ignition switch to ON (II) and follow the prompts to the SYSTEM SELECTION MENU.
NOTE: If the HDS does not communicate with the vehicle, go to DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
At SYSTEM SELECTION MENU, enter IMMOBI, then select the IMMOBILIZER SETUP.
Do the SYSTEM CHECK. If there is a system check number, do the troubleshooting for the item indicated.
Check the STATUS LOG using the HDS. Troubleshoot the line with the highest counts first (see STATUS LOG ). If all the lines are 0 (zero), the problem may not be caused by the immobilizer system; check for ignition or fuel problems. Refer to PGM-FI System Symptom Troubleshooting (see GENERAL TROUBLESHOOTING INFORMATION ).
NOTE: Once repaired, clear the status log by removing the No. B1 (15 A) fuse in the under-dash fuse/relay box or disconnecting the battery.