DTC Inspection
NOTE:
Because the ion sensor is integrated in the ignition coil, replacing the ion sensor includes replacement of the ignition coil/ion sensor.
1. Connect the M-MDS to the DLC-2.

2. Perform the DTC inspection using the M-MDS..
If any DTC related to the ignition coil/ion sensor is present, repair the malfunctioning location according to the applicable DTC troubleshooting..
Visual Inspection
NOTE:
Because the ion sensor is integrated in the ignition coil, replacing the ion sensor includes replacement of the ignition coil/ion sensor.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Remove the ignition coil/ion sensor..
5. Verify that there is no damage to the ignition coil/ion sensor, and no corrosion and damage to the connector.
If there is a malfunction, replace the ignition coil/ion sensor..
Front Seat Belt Removal/Installation [Two Step Deployment Control System]
Neutral Switch Inspection [Mzr 2.0, Mzr 2.5]Variable Tumble Solenoid Valve Inspection [Mzr 2.0, Mzr 2.5]
Airflow Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the variable tumble solenoid valve..
4. Inspect airflow between the ports under the following conditions.
If not as specified, replace the variable tumble solenoid valve..
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Transaxle Oil Replacement [G35 M R]
1. Park the vehicle on level ground.
2. Remove the aerodynamic under cover No.2..
3. Remove the drain plug and washer.
4. Drain the oil into a suitable container.
5. Install a new washer and the drain plug.
Tightening torque
39—59 N·m {4.0—6.0 kgf·m, 29—43 ft·lbf}
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Rear Seat Back Frame Removal/Installation
1. Remove the rear seat cushion..
2. Remove the rear buckle installation bolt..
3. Remove the rear seat back..
4. Remove the headrest.
5. Open the fasteners.
6. Detach the hooks.
7. Remove the child-restraint seat anchor covers in the order of (1), (2) as
shown in the figure. (5H ...