Troubleshooting - Honda NC700XA Service Manual

dummyhead dummyhead
IMMOBILIZER SYSTEM (HISS)

TROUBLESHOOTING

The immobilizer 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.
Immobilizer indicator does not come on when the ignition switch is turned ON
1. Fuse Inspection
Check for blown sub fuse 7.5 A (CLOCK/TURN) and/or sub fuse 7.5 A (ENG STOP).
Is the fuse blown?
YES
NO
2. Combination Meter Inspection
Check that the neutral indicator come on with the ignition switch turned ON.
Is the indicator come on?
YES
NO
3. Combination Meter Power Input Line Inspection
Check the power input line (Red/white wire) at the combination meter 16P (Gray) connector (page 23-10).
Is the voltage specified value?
YES
NO
4. TXD/RXD Line Inspection between The ECM/PCM and Combination Meter
Check the TXD/RXD line (Red/blue wire) between the ECM/PCM 33P connector and combination meter
16P (Gray) connector (page 23-10).
Is there continuity?
NO
YES
5. Power Input Line Inspection at The ECM/PCM Connector
Check the power input line (Black/red and Black wire) at the ECM/PCM 33P connector (page 23-11).
Is the voltage specified value?
YES
NO
6. Ground Line Inspection at The ECM/PCM Connector
Check the ground line (Green/orange and Green wire) at the ECM/PCM 33P connector (page 23-11).
Is there continuity?
YES
NO
Immobilizer 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
23-8
– Replace the fuse.
– GO TO STEP 2.
– GO TO STEP 4.
– GO TO STEP 3.
– Faulty combination meter.
– Open circuit in Red/white wire
– Open circuit in Red/blue wire
– GO TO STEP 5.
– GO TO STEP 6.
– Open circuit in Black/red and Black wire
– • Loose or poor contact of the ECM/PCM 33P connector
• Faulty ECM/PCM
– • Open circuit in Green/orange wire
• Open circuit in Green wire
– Remove it and recheck.
– GO TO STEP 2.