1. Disconnect the negative battery cable..
2. Remove the auto leveling sensor..
3. Connect the three dry cell batteries (1.5 V) in a series.

4. Connect auto leveling sensor terminal A to the battery’s minus terminal, and terminal C to the battery’s plus terminal, and apply 4.5 V of voltage between terminals A and C.
5. Connect the tester as shown in the figure.
6. When slowly moving the link up and down, verify that the shift is linear while the voltage is 0.5 to 4.5 V.

If the voltage cannot be verified as indicated in the graph, replace the auto leveling sensor.
General
Auto Leveling Sensor Removal/InstallationIgnition Switch Inspection [Without Advanced Keyless Entry And Push Button Start
System]
1. Disconnect the negative battery cable..
2. Remove the column cover..
3. Remove the ignition switch..
4. Verify that the continuity between the ignition switch terminals is as indicated
in the table.
If not as indicated in the table, replace the ignition switch.
...
EGR Valve Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the EGR valve connector.
4. Measure the resistance between the EGR valve terminals.
EGR valve terminal
Resistance inspection (ohm)
...
Neutral Switch Removal/Installation [G35 M R]
1. Remove the battery cover..
2. Disconnect the negative battery cable.
3. Remove the battery component. (ex: battery, battery tray and PCM component)(See
BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)
4. Remove the aerodynamic under cover No.2..
5. Drain the oil from the transaxle..
...