1. Disconnect the negative battery cable..
2. Remove the rear door trim..
3. Disconnect the rear door speaker connector..
4. Verify that the resistance between the rear door speaker terminals is as indicated in the table.

If not as indicated in the table, replace the rear door speaker.
Without Bose®

With Bose®

Keyless Antenna [Keyless Entry System]
Rear Door Speaker Removal/InstallationKeyless Antenna [Keyless Entry System]
Purpose
Outputs a request signal and specifies the remote transmitter location.
Function
The keyless antennas output request signals based on the signals from the
start stop unit.
Construction, Operation
Request signals are output by the keyless antenna installed ...
Main Relay Control [Skyactiv G 2.0]
Outline
Supplies power to each part by switching the main relay on/off at the optimal
timing according to the vehicle conditions.
Block Diagram
Operation
When the ignition is switched ON, the main relay turns on and electrical
power is supplied to each sensor and devic ...
Knock Sensor (Ks)
Purpose/Function
Detects abnormal combustion in the cylinder as basic information for mainly
determining the ignition timing.
Detects abnormal combustion in the combustion chamber and inputs it to the
PCM as a knocking signal.
Construction
Installed on the cylinder ...