Antitheft - Immobilizer Indicator Blinking, Engine No Start
06-036February 22, 2013
Applies To:
2006 Civic - SEE VEHICLES AFFECTED
Immobilizer Indicator Is Blinking, Engine Won't Start
(Supersedes 06-036, dated August 2, 2006, to revise the information marked by asterisks.)
*REVISION
Under REPAIR PROCEDURE, information was changed.*
SYMPTOM
The engine does not start, and the immobilizer indicator is blinking (especially if the battery recently went dead and the engine was jump-started).
PROBABLE CAUSE
The immobilizer IMOES code has been erased.
NOTE:
This problem occurs only if all these conditions are met:
^ The security system is set.
^ The battery goes dead.
^ Battery power is connected to the vehicle, then disconnected in a very short period of time (milliseconds).
If the vehicle meets these conditions, or if the condition is unknown, go to DIAGNOSIS.
VEHICLES AFFECTED
CORRECTIVE ACTION
TOOL INFORMATION
WARRANTY CLAIM INFORMATION
In warranty:
The normal warranty applies.
Operation Number: 7471A0
Flat Rate Time: 0.8 hour
Defect Code: 03217
Symptom Code: 01201
Skill Level: Repair Technician
Failed Part:
DIAGNOSIS
NOTE:
When the immobilizer system is not allowing the engine to start, the results vary depending on the model and how quickly the ignition key is turned.
2006 Civic 2-Door, 4-Door, Si, and GX
^ If you quickly turn the ignition switch from LOCK (0) to START (III), the engine starts and runs for about 1 second, then shuts off.
^ If you turn the ignition switch to ON (II), then pause before turning to START (III), the starter cranks, but the engine does not start.
^ When the ignition switch is returned to LOCK (0), the indicator blinks 10 times.
2006 Civic Hybrid
^ During moderate weather conditions, if you turn the ignition switch to START (III), the gauges and gauge indicators come on, but the engine does not crank.
^ During extremely cold conditions (about 0°F or lower) or a low IMA battery:
- If you turn the ignition switch quickly from LOCK (0) to START (III), the starter motor, not the IMA motor, cranks the engine and it runs for about 1 second, then shuts off.
- If you turn the ignition switch to ON (II), then pause before turning to START (III), the starter motor, not the IMA motor, cranks the engine but it does not start.
^ When the ignition switch is returned to LOCK (0), the indicator blinks 10 times.
1. Try to start the engine.
Does the car have the symptoms above?
Yes - Go to step 2.
No - The problem is not immobilizer-related, refer to the service manual for troubleshooting.
2. Try to start the engine several more times.
Is this an intermittent problem?
Yes - The problem addressed by this service bulletin is not intermittent. Using the HDS in the IMMOBI section, do a Status Log check and refer to the service manual for troubleshooting.
No - Go to step 3.
3. Using the HDS in the IMMOBI section, do a System Check.
Is C-1 indicated, with the highest number of occurences?
Yes - Go to REPAIR PROCEDURE.
No - Refer to the service manual for troubleshooting.
REPAIR PROCEDURE
NOTE:
To replace the under-dash fuse/relay box (MICU), you need these items:
^ Replacement under-dash fuse/relay box (MICU)
^ One programmed ignition key for the vehicle
^ HDS with software version 2.002.006 or later
* ^ PCM Code
NOTE:
If you cannot log in to the interactive Network (iN) screen on the HDS, you must retrieve the PCM code from the Immobilizer Code Inquiry in the iN.*
1. Replace the under-dash fuse/relay box (MICU).
NOTE:
When you replace the under-dash fuse/ relay box (MICU), you must use the HDS to register the IMOES unit with the immobilizer-keyless control unit. If this procedure is not done after the MICU replacement, the engine will not start.
^ Refer to section 22 of the appropriate 2006 Civic service manual, or
^ Online, enter keyword FUSE BOX, and select Under-dash Fuse/Relay Box Removal and Installation from the list.
2. Connect the HDS to the 16P data link connector
*3. Insert the programmed ignition key into the ignition switch, and turn the ignition switch to ON (II). Turn on the HDS, then log in to the iN screen.*
4. At the screen prompts, enter the VIN and the odometer reading, and then verify the date and time are correct in the HDS.
5. From the System Selection Menu screen, select IMMOBI.
6. From the Immobilizer Test Mode Menu screen, select Replace MPCS/MICU/IMOES, and follow the screen prompts to register the IMOES unit.
*7. Follow the on-screen prompts. If your HDS is not logged in to the iN, you will have to enter the PCM code you have retrieved from the iN Immobilizer Code Inquiry to proceed.*
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