Outline
The PCM controls energization to the starter relay according to an immobilizer system request to improve security.
While not in P or N position, the starter relay energization by the ignition key is inhibited. (ATX)
While not in neutral, the starter relay energization by the push button start is inhibited. (MTX)
Block Diagram

Operation
The PCM establishes a ground to the starter circuit. Therefore when the ignition is switched to START, the starter relay is energized and the starter motor rotates. As a result, the engine starts normally.
The PCM does not establish a ground to the starter circuit. Therefore, even if the ignition switch is turned to the start position, the starter motor does not rotate because the starter relay does not energize, and the engine does not start.

The PCM turns the starter relay off with the engine speed at the set value or more (value from engine coolant temperature fluctuates).
Refrigerant Charging
Starter Disassembly/Assembly [Skyactiv G 2.0]Air Bag System Service Warnings [Two Step Deployment Control System]
Air Bag Module Inspection
Inspecting an air bag module using a tester can operate (deploy) the air
bag module, which may cause serious injury. Do not use a tester to inspect an
air bag module. Always use the on-board diagnostic function to diagnose the
air bag module for malfunctions ...
Rear Seat Belt Removal/Installation
CAUTION:
The ELR (emergency locking retractor) has a spring that will unwind if the
retractor cover is removed. The spring cannot be rewound by hand. If this occurs,
the ELR will not work properly. Therefore, do not disassemble the retractor.
1. Remove the following parts:
a. T ...
Rear Stabilizer Removal/Installation [Awd]
WARNING:
Verify that the rear crossmember is securely supported by a jack. If the
rear crossmember falls off, it can cause serious injury or death, and damage
to the vehicle.
CAUTION:
Performing the following procedures without first removing the rear ABS wheel-speed
s ...