Honda Accord 2008 Manual page 2193

07/11/02 09:34:58 61TA0000_220_0163
Keyless/Power Door Locks/Security System
Symptom Troubleshooting (cont'd)
Keyless operation does not work (LOCK,
UNLOCK, PANIC)
NOTE:
• Before troubleshooting, check the B-CAN DTCs. If any
DTC is indicated, troubleshoot the indicated DTC first.
• Before troubleshooting, do the keyless transmitter
test (see page 22-175).
1. Turn the ignition switch to ON (II).
2. Try to start the engine.
Does the engine start?
−
YES The immobilizer system is OK, go to step 3.
NO − Go to the immobilizer symptom
troubleshooting (see page 22-402).
3. Turn the ignition switch to LOCK (0).
4. Test the transmitter (see page 22-175).
Is the transmitter OK ?
−
YES Replace the immobilizer-keyless control
unit.
NO − Replace the transmitter.
22-160 22-160
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Doors will not unlock (or lock) with the
transmitter, but will unlock (lock) with the
door switch
NOTE: Before troubleshooting, check the B-CAN DTCs.
If any DTC is indicated, troubleshoot the indicated DTC
first.
1. Turn the ignition switch to LOCK (0).
2. Remove the ignition key from the ignition switch.
3. Close and lock the doors.
4. Try to lock/unlock the doors with the keyless
transmitter.
Do the door lock actuators work normally?
YES − Intermittent failure, the system is OK at this
time.
NO − Go to step 5.
5. Open the driver's door.
Does the key-in reminder chime sound?
YES − Faulty ignition key switch, or short to ground
on the ignition switch wire. Repair as necessary.
NO − Go to step 6.
6. Do the transmitter test (see page 22-175).
Is the transmitter OK ?
YES − Substitute a known-good driver's under-dash
fuse/relay box and recheck. If there is still a
problem, substitute a known-good immobilizer-
keyless control unit and recheck.
NO − Replace the transmitter.
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