correct fault code diagnosis

[sovk1n6]

Hi guys, I read a few fault codes on my car from looking on the forum is this the correct diagnosis for my car

16524 P0140 O2 Sensor Circ.,Bank1-Sensor2 No Activity Detected
New lambda/oxygen sensor = dont know which one/where it is??

17522 P1114 Bank1-Sensor2 Internal Resistant too High
Loose connection somewhere?

17704 P1296 Cooling system malfunction
Faulty thermostat/thermostat sensor?? = New thermostat/thermostat sensor. How do I Know which one?

18010 P1602 Power Supply (B+) Terminal 30 Low Voltage
Disconnected battery a couple of days ago to install head unit.

Are these easy to change, i'm a DIY person but never worked on a car before other than change the headlight bulbs and change a battery lol. Does it require special tools?

Thanks

 

[sovk1n6]

anyone?

 

[sambryant]

Looks like its your engine coolant sensor thats gone. This will cause fueling issues. 5 mins to fix

 

[sovk1n6]

thanks, i think my lambda sensor is gone aswell, do you know where i can get cheap its 90 everywhere ive looked!!!

 

[gtimassive]

Hi there, just wanted to know if your car is fixed now as i changed my engine coolant sensor about 2 months ago reset my dashboard light and it came back on again last night with the same code.