1. Disconnect the negative battery cable..
2. Remove the inner garnish..
3. Remove the front door trim..
4. Remove the front inner handle..
5. Inspect for continuity between the door lock switch terminals using an ohmmeter.

If not as indicated in the table, replace the door lock switch.

Theft Deterrent System Reading Freeze Frame Data
Door Lock Switch Removal/InstallationShift Lock System Inspection
Shift-Lock System Inspection
1. Switch the ignition to ON.
2. Shift the selector lever to the P position.
3. Perform the following procedures to inspect the shift-lock system.
If there is any malfunction, inspect the shift-lock solenoid and P position
switch..
a. Verify that th ...
Back Up Light 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).
4. Remove the aerodynamic under cover No.2..
5. Drain the oil from the transaxle..
6. Disconnect the back-up light switch connector and r ...
Driver Side Air Bag Module Removal/Installation [Two Step Deployment Control
System]
WARNING:
Handling the air bag module improperly can accidentally deploy the air bag
module, which may seriously injure you. Read the air bag system service warnings
and cautions before handling the air bag module..
Due to the adoption of 2-step deployment control in the driver- ...