Hi,
Newbie here with complex problem…. very grateful for any help.
My father in law has a 2011 J200 Land Cruiser, with about 220k km on it. He doesn’t use it frequently. It’s entirely stock with the JBL Navigation/audio/multi disc changer and Hard Drive system. The amp is Harman Becker.
I am quite technically competent, but am only visiting him for the holidays and have zero tools.
The issue is this.
What doesn’t work:
1. The rear view camera used to work but today nothing happens when you put it in reverse.
2. The head unit has any option which may emit sound disabled - so the AM/FM tabs are unselectable on the touch screen. The bluetooth tab works, however, it’s impossible to connect a BT audio device as that is greyed out.
3. While the key beep function is enabled in the general settings menu, pressing any key does not produce a beep.
4. The rear parking sensors do not work.
5. The buttons and knobs on the audio unit do not do anything.
What works (and the car is otherwise normal):
1. The screen powers on and shows a map with the correct GPS location for the vehicle while driving.
2. The touch screen works and you can look at various menu options.
3. All the air con unit controls work perfectly.
Worth noting that the speakers and the rear camera stopped working simultaneously after a period of heavy rain though impossible to say water is the ultimate culprit with certainty.
In reading around this it seems such failures are common, hard to diagnose and ultimately expensive to fix.
It seems to me the whole contraption is in several parts:
1. The Head Unit
2. The Multi-disc/CD/Radio unit
3. The amplifier under the passenger seat
4. The external accessories (rear camera, parking sensors)
5. An inordinately complicated wiring look which goes the full length of the vehicle.
If one were to randomly start replacing things it’d be easy to spend more than the car’s worth and still not diagnose the problem…
I had a go at running the MOST diagnostics.
When I first ran them, the top of the screen was green and they looked like this.
However, there’s no mention of Amplifier or Camera on the connected components list - it doesn’t even look like they are being scanned for?
Then I thought I’d check the fuses. I took the two 30A Amp1 and Amp2 fuses out. That didn’t fix anything. However, since doing that the MOST diagnosis screen looks different - now the top is red instead of green. The CAMERA and SPCheck ON buttons you can’t click on.
When you run the diagnostics, it’s still not picking up the speakers nor the camera.
The only other thing I looked at was the RAD1 fuse (10A) but that is also fine.
So I’m wondering whether this hellps narrow the problem down to a faulty amp, camera, head unit or some wiring connection.
Many thanks for any help anyone can offer in advance.
Newbie here with complex problem…. very grateful for any help.
My father in law has a 2011 J200 Land Cruiser, with about 220k km on it. He doesn’t use it frequently. It’s entirely stock with the JBL Navigation/audio/multi disc changer and Hard Drive system. The amp is Harman Becker.
I am quite technically competent, but am only visiting him for the holidays and have zero tools.
The issue is this.
What doesn’t work:
1. The rear view camera used to work but today nothing happens when you put it in reverse.
2. The head unit has any option which may emit sound disabled - so the AM/FM tabs are unselectable on the touch screen. The bluetooth tab works, however, it’s impossible to connect a BT audio device as that is greyed out.
3. While the key beep function is enabled in the general settings menu, pressing any key does not produce a beep.
4. The rear parking sensors do not work.
5. The buttons and knobs on the audio unit do not do anything.
What works (and the car is otherwise normal):
1. The screen powers on and shows a map with the correct GPS location for the vehicle while driving.
2. The touch screen works and you can look at various menu options.
3. All the air con unit controls work perfectly.
Worth noting that the speakers and the rear camera stopped working simultaneously after a period of heavy rain though impossible to say water is the ultimate culprit with certainty.
In reading around this it seems such failures are common, hard to diagnose and ultimately expensive to fix.
It seems to me the whole contraption is in several parts:
1. The Head Unit
2. The Multi-disc/CD/Radio unit
3. The amplifier under the passenger seat
4. The external accessories (rear camera, parking sensors)
5. An inordinately complicated wiring look which goes the full length of the vehicle.
If one were to randomly start replacing things it’d be easy to spend more than the car’s worth and still not diagnose the problem…
I had a go at running the MOST diagnostics.
When I first ran them, the top of the screen was green and they looked like this.
However, there’s no mention of Amplifier or Camera on the connected components list - it doesn’t even look like they are being scanned for?
Then I thought I’d check the fuses. I took the two 30A Amp1 and Amp2 fuses out. That didn’t fix anything. However, since doing that the MOST diagnosis screen looks different - now the top is red instead of green. The CAMERA and SPCheck ON buttons you can’t click on.
When you run the diagnostics, it’s still not picking up the speakers nor the camera.
The only other thing I looked at was the RAD1 fuse (10A) but that is also fine.
So I’m wondering whether this hellps narrow the problem down to a faulty amp, camera, head unit or some wiring connection.
Many thanks for any help anyone can offer in advance.
