Engine does not start with the immobilizer key
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. 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
).
- Try to start the engine.
Does the engine start?
YES -Intermittent failure, the vehicle is OK at this time. Check status log (see STATUS LOG ) and check the line indicated in the table.
NO -Go to step 2.
- Turn the ignition switch to LOCK (0).
- Turn the ignition switch to ON (II), and check the immobilizer indicator indication.
Does the indicator quickly flash twice and turn off?
YES -Go to step 4.
NO -Do the immobilizer-keyless control unit input test (see IMMOBILIZER-KEYLESS CONTROL UNIT INPUT TEST ).
- Turn the ignition switch to START (III).
Does the starter crank the engine?
YES -Go to step 5.
NO -Go to Starting System troubleshooting and check the starter motor circuit.
- Try to start the engine with a different known-good immobilizer key (previously programmed and known to start the vehicle).
Does the engine start?
YES -Replace the immobilizer key.
NO -Go to the PGM-FI System Symptom Troubleshooting.