Radio Stays ON & Cigarette Lighter outlet Issues
Thread Starter
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Three Wheeling
Joined: May 2014
Posts: 56
Likes: 3
From: Westchester, NY
Thank you for this, I didn't know if the 1.5D was in mm or mm^2 for the Land Rover Schematics. I also felt that 16AWG was a thicker wire than the one i can currently see installed but I guess it won't matter much.
I'm including below the outlet USB socket I decided to go with, this includes an ON/OFF switch so when I wire it to an ALWAYS hot fuse I can decide to keep it OFF (or ON). I do not use this vehicle much so having the ability to cut power to the outlet may safe me from potentially emptying the car battery (though unlikely).
I am happy to report that I was able to identify the issue I was having with the wiring arriving to the cigar outlet, somehow I must have had a bad ground connection, I was able to locate the earth point (by the passenger A-Pillar) and wiggle the wiring there a little and bam! got the power back on at that outlet. Now I only have to wait for this USB outlet to arrive and will rewire it.
Thank you for this suggestion! I am so thankful to this community for posting very useful mods and hacks that we can include to these amazing vehicles!
Off to carry on trying to figure out what is wrong with the radio not turning off when I turn the ignition OFF.
I'm including below the outlet USB socket I decided to go with, this includes an ON/OFF switch so when I wire it to an ALWAYS hot fuse I can decide to keep it OFF (or ON). I do not use this vehicle much so having the ability to cut power to the outlet may safe me from potentially emptying the car battery (though unlikely).
I am happy to report that I was able to identify the issue I was having with the wiring arriving to the cigar outlet, somehow I must have had a bad ground connection, I was able to locate the earth point (by the passenger A-Pillar) and wiggle the wiring there a little and bam! got the power back on at that outlet. Now I only have to wait for this USB outlet to arrive and will rewire it.
Thank you for this suggestion! I am so thankful to this community for posting very useful mods and hacks that we can include to these amazing vehicles!
Off to carry on trying to figure out what is wrong with the radio not turning off when I turn the ignition OFF.
Thread Starter
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Three Wheeling
Joined: May 2014
Posts: 56
Likes: 3
From: Westchester, NY
Pull the radio, leave the cables connected! and put the positive probe of the multimeter (negative connected to ground of course) directly into the connector holes. Check if there is 12V at the "permanent battery feed" (C0098-4) and that 12V goes on and off with ignition at the "auxilary feed" (C0098-7). The radio should turn off as soon as there is no voltage at the "auxilary feed". Maybe there is a shortcut or someone messed with the wiring.
So, I performed the checks you indicated above with the below observations (I included photos at the end of this post):
- "permanent battery feed" (C0098-4): reading 12.34V (with key OUT of the ignition).
- "auxilary feed" (C0098-7): reading 242.1mV (with key OUT of the ignition).
- "auxiliary feed" (C0098-7): reading 12.24V (with key IN the ignition on position I).
I guess, the above confirms that the wiring to the radio is OK and the fact that the radio does NOT turn off after ignition position is at 0 (or even when key is OUT of the ignition) may be due to something going on on the radio itself, perhaps there is something wrong with the "RADIO ON/OFF" switch shown in the diagram below?
What should I try next?
Permanent Battery Feed (C0098-4) (key out of the ignition)
auxilary feed (C0098-7) (key out of the ignition; ie ignition position 0)
auxilary feed (C0098-7) (ignition position I)
Recovery Vehicle
Joined: Jun 2018
Posts: 1,235
Likes: 509
From: CA
Looks like something is wrong with the head unit internally. The schematic for the head unit is a symbolic representation only. You would need the schematics from Alpine. Does the power button work in general? The easiest way to sort things would be trying another head unit.
Thread Starter
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Three Wheeling
Joined: May 2014
Posts: 56
Likes: 3
From: Westchester, NY
Looks like something is wrong with the head unit internally. The schematic for the head unit is a symbolic representation only. You would need the schematics from Alpine. Does the power button work in general? The easiest way to sort things would be trying another head unit.
I don't have another head unit to swap it and check it so, I'm taking it apart (see below).. I have no idea what I am doing though. Any suggestions on what to check or measure with the multimeter?
Recovery Vehicle
Joined: Jun 2018
Posts: 1,235
Likes: 509
From: CA
To track it down you need the schematic from Alpine (I don't have it either and it is nowhere to find). It gets even more complex, because the unit is controlled by a microcontroller with software. The only thing you can do is to measure continuity (resistance or "beep mode") of the connections from connector to PCB, especially for the pin in question (C0098-7) and to inspect for broken connectors, broken PCB traces and bad soldering points visually. If something is disconnected the software might behave weirdly (not turning off and - as I understand your problem - it doesn't even turn off after the 20 min timeout).
Thread Starter
|
Three Wheeling
Joined: May 2014
Posts: 56
Likes: 3
From: Westchester, NY
To track it down you need the schematic from Alpine (I don't have it either and it is nowhere to find). It gets even more complex, because the unit is controlled by a microcontroller with software. The only thing you can do is to measure continuity (resistance or "beep mode") of the connections from connector to PCB, especially for the pin in question (C0098-7) and to inspect for broken connectors, broken PCB traces and bad soldering points visually. If something is disconnected the software might behave weirdly (not turning off and - as I understand your problem - it doesn't even turn off after the 20 min timeout).
Thanks for your posts on this, I am learning a lot about this amazing vehicle.
Recovery Vehicle
Joined: Jun 2018
Posts: 1,235
Likes: 509
From: CA