COMMUNICATION SYSTEM > Horn Switch
INSPECTION
1. CHECK HORN SWITCH
CAUTION:
Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">
1. Turn the ignition switch to OFF.
2. Disconnect the ground cable from battery and wait for at least 60 seconds before starting work. NOTE">
3. Remove the driver’s airbag module. Driver’s Airbag Module > REMOVAL">
4. Check that the connection of the horn switch harness connector is correct.
5. Disconnect the horn switch harness connector and check the resistance between the harness connectors.
Preparation tool:
Circuit tester

(a) | Ground terminal | (b) | Horn switch terminal |
Terminal No. | Inspection conditions | Standard |
Horn switch terminal — ground terminal | Always | Less than 1 ? |
6. Replace the driver’s airbag module if the inspection result is not within the standard value.
2. CHECK ROLL CONNECTOR
CAUTION:
• Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">
• If the steering wheel and steering angle sensor (steering roll connector) are removed, be sure to perform the following operations.
– Align the center position of the steering roll connector.
– Perform the neutral position setting of the steering angle sensor.
1. Turn the ignition switch to OFF.
2. Disconnect the ground cable from battery and wait for at least 60 seconds before starting work. NOTE">
3. Remove the roll connector. Roll Connector > REMOVAL">
4. Check the resistance between roll connector terminals.
Preparation tool:
Circuit tester

Terminal No. | Inspection conditions | Standard |
A1 — C9 | Always | Less than 1 ? |
5. Replace the roll connector if the inspection result is not within the standard value.
Horn switch
NoteRear center seating position
CAUTION
The head restraint is not intended to
be used at the retracted position.
Before sitting on the seat, raise the
head restraint to the extended position.
Incorrect (retracted position)
Correct (extended position)
To raise:
Pull the head restraint up.
To lower:
Push ...
Unlocking
Perform steps 1 to 5 described in "Registration".
NOTE
You cannot unlock by PIN Code
Access in the following cases.
when the access key is within the
operating ranges
when the ignition switch is in the
"ACC" or "ON" position
If you make an operation error
during the unlocking proced ...
Replacement
VEHICLE DYNAMICS CONTROL (VDC) > VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)REPLACEMENT1. ONLY FOR MODELS WITHOUT EyeSightCAUTION:• Because the pressure sensor built into the H/U is easily damaged by static electricity, start the operation after performing static electrici ...