1. Disconnect the negative battery cable..
2. Remove the battery component. (ex: battery, battery tray and PCM component) (G35-MR,G66M-R).
3. Remove the aerodynamic under cover No.2. (G35-MR,G66M-R,C66M-R).
4. Disconnect the back-up light switch connector..
5. Verify that the continuity between the back-up light switch terminals is as indicated in the table.

If not as indicated in the table, replace the back-up light switch.

Rear Combination Light Removal/Installation
Back Up Light Switch Removal/Installation [A26 M R]Battery Inspection [Skyactiv G 2.0]
WARNING:
Since battery acid is toxic, be careful when handling the battery.
Since battery acid is highly corrosive, be careful not to allow it to contact
clothing or the vehicle.
In case battery acid contacts skin, eyes, or clothing, flush it immediately
with running wa ...
Joint Shaft Removal/Installation [Mzr 2.0, Mzr 2.3 Disi Turbo, Mzr 2.5]
CAUTION:
Performing the following procedures without first removing the ABS wheel-speed
sensor may possibly cause an open circuit in the wiring harness if it is pulled
by mistake. Before performing the following procedures, remove the ABS wheel-speed
sensor connector (axle side) and ...
Theft Deterrent System Clearing Freeze Frame Data
1. Connect the M-MDS (IDS) to the DLC–2.
2. After the vehicle is identified, select the following items from the initialization
screen of the IDS.
Select “Body”.
Select "Burglar Service Functions".
3. Then, select the following item from the screen menu. ...