RDX AWD L4-2.3L Turbo (2010)
Keyless Entry: Symptom Related Diagnostic Procedures
The Horn Does Not Sound and/or the Headlights Do Not Flash When the Panic Button on the
Transmitter is Pressed
Keyless/Power Door Locks/Security System Symptom Troubleshooting - The horn does not sound and/or the headlights do not flash when the
PANIC button on the transmitter is pressed
The horn does not sound and/or the headlights do not flash when the PANIC button on the transmitter is pressed
NOTE: Before troubleshooting, check the B-CAN DTCs. If any DTC is indicated, troubleshoot the indicated DTC first.
1. Press the PANIC button.
Does the horn sound?
YES -
Go to step 3.
NO -
Go to step 2.
2. Press the horn button.
Does the horn sound?
YES -
Go to step 3.
NO -
Check the horn circuit.
3. Turn the headlight switch to ON.
Do the headlights come on?
YES -
Go to step 4.
NO -
Check the lighting circuit.
4. Do the keyless transmitter test See: Component Tests and General Diagnostics/Keyless Entry Transmitter Test.
Is the transmitter OK?
YES -
Substitute a known-good immobilizer-keyless control unit and recheck. If the problem goes away, replace the original immobilizer-keyless control unit
See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Alarm Module/Service and Repair. If there is still a problem, substitute a
known-good MICU and recheck. If the problem goes away,faulty MICU, replace the under-dash fuse/relay box See: Maintenance/Fuses and Circuit
Breakers/Relay Box/Service and Repair/Under-Dash Fuse/Relay Box Removal/Installation.
NO -
Replace the keyless transmitter.
