Immobilizer System (Hiss) Troubleshooting - Honda CRF1000 Shop Manual

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IMMOBILIZER SYSTEM (HISS)
When the system (ECM/PCM) enters the diagnostic
mode from the registration mode:
ON
OFF
TROUBLESHOOTING
The HISS indicator comes on for approx. two seconds then it goes off, when the ignition switch is turned ON
with the properly registered key and the HISS functions normally. If there is any problem or the properly
registered key is not used, the indicator will remains on.
HISS indicator does not come on when the ignition switch is turned ON
1. Combination Meter Initial Operation Inspection
Check the combination meter initial operation (page 22-12).
Is the initial operation displayed?
YES
NO
2. TXD Line Inspection
Check the combination meter indication when the TXD line is abnormal (page 22-14).
Does the combination meter shows the communication line faulty operation?
YES
NO
HISS indicator remains on with the ignition switch turned ON
1. Immobilizer Receiver Jamming Inspection
Check that there is any metal obstruction or the other vehicle's transponder key near the immobilizer
receiver and key.
Is there any metal obstruction or the other transponder key?
YES
NO
2. First Transponder Key Inspection
Turn the ignition switch ON with the spare transponder key and check the HISS indicator.
The indicator should came on for 2 seconds then go off.
Is the indicator go off?
YES
NO
23-8
BLINKING PATTERN
10 sec.
– GO TO STEP 2.
– Check the combination meter power and ground lines (page 22-12).
– Check the TXD line (page 22-14).
– Check the ECM/PCM power/ground lines (page 4-40).
– Remove it and recheck.
– GO TO STEP 2.
– Faulty first transponder key
– GO TO STEP 3.
SYMPTOM PROBLEM
Registration is The key is
overlapped already
registered
properly
Code signals Communication
cannot send or fails
receive
Registration is The key is
impossible already
registered on the
other system
PROCEDURE
Use a new key or
cancelled key
Follow the
troubleshooting
(page 23-8)
Use a new key