1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Trunk end trim.
b. Rear scuff plate (RH).
c. Trunk side trim (RH).
d. Theft-deterrent horn.
3. Apply battery positive voltage to horn terminal A, and connect the horn retaining bolt to ground as shown in the figure, and then verify that the horn sounds.

If the horn does not sound, replace the horn.
Remote Transmitter Battery Voltage Inspection
Theft Deterrent Horn Removal/InstallationPCM Inspection
Without Using the M-MDS
NOTE:
Because the PCM uses a waterproof connector, the inspection for the voltage/wave
pattern cannot be performed. The following values are for reference.
Terminal voltage table (Reference)
Terminal
Signal
C ...
Auto Leveling Sensor Removal/Installation
1. Disconnect the negative battery cable..
2. Disconnect the connector.
3. Remove the bolts.
4. Remove the auto leveling sensor.
5. Install in the reverse order of removal.
6. Perform the auto leveling system initial setting.. ...
PCM Removal/Installation
CAUTION:
There are two types of PCM settings. If the incorrect PCM is installed, it
could cause interference with engine control.
When replacing the PCM, verify the first four digits of the part number indicated
on the PCM label before replacement, and replace the PCM with one ...