2007 infiniti qx56

Did you check for DTC'S ? diagnostic trouble codes .Hook up a scan tool an check live input data to the control module for cruise control?

Factory Service Manuals - NICOclub

glitter or sugar try to syphon gas or disconnect line fron fuel rail and pump out some fuel and examine it -----possible someone placed a substance into tank -----causing clogging and or damage to pump and fuel system

Use your OBD code reader.

no ---fuses just pass power in any direction
You can check for a blown fuse as the reversed power supply may have shorted something out
it could be a fried ECM or a failed diode from the wrong power direction flow
lights will work with current flow in either direction
starter solenoids need a direction to move in on starting so it will not work with the wrong direction of power
radio could be blown internally

This is what I found listed that needs to be checked after battery replacement. Not an autozone job for sure.

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : SpecialRepair Requirement

INFOID:0000000006095112

Required Procedure After Battery Disconnection

System Item Reference

Engine Control Idle Air Volume Learning Refer to

EC-18.

Brake Control Steering Angle Sensor Neutral Position Refer to

BRC-8.

Power Window Control Power Window System Initialization Refer to TSB.

Body, Lock & Security Automatic Back Door Initialization Refer to

DLK-9.

Roof Sunroof Memory Reset/Initialization Refer to

RF-5.

Seats Automatic Drive Positioner System Initialization Refer to Owner's Manual.

Audio-Visual System

Audio (Radio Preset) Refer to Owner's Manual.

Navigation System Refer to Owner's Manual.
Rear View Monitor Guiding Line Adjustment Refer to
AV-7.

check the starter and celonid

sounds like you may have a blown fuse check the fuses under dash and under the hood. look in the owners manual

Guys! Are you readying your airbag system after messing around with your truck?

I've seen airbag lights come on for man reasons, faulty sensors, connections, replacing RADIOS! Removing seats!! All sorts of reasons. Personally I bought my QX56 with the airbag light blinking. Drove me crazy for 24 hours till I decided to reset it n see what happened. It takes two minutes to do. No tools.

1. Turn key from off to on. (on meaning all your dash lights are on but your not cranking the motor)

2. Watch the airbag light closely. It will stay on for a few secs. and then as soon as it blinks off (the start of the flashing), turn the key off instantly.

3. Count to 5 (1 Mississippi, 2 Mississippi . . . .)

4. Repeat steps 1-3 two more times until you have done the cycle three times.

5. Now turn the key on and watch the light. It will start blinking in a different, slower manner. This is diagnostic mode. You can watch this for a little while, no hurry.

6. Now turn the key off again, Count to 5 like in step 3 again, and turn back on. If the procedure worked, the airbag light will not be flashing.

There is a motor for one of your Air Conditioner mode doors is going bad, resolve quickly!

I have been able to reset the check engine light by disconnecting the positive battery terminal for 15 to 20 minutes. This will cause to system to reset and the light should go out. The system will automatically go through a diagnostic cycle to check for problems.