[Budger-Zim]

I have a 2008 2.8 Diesel Nitro UK spec. On turning the ignition on, the radio display a message - turn ignition key to run and its not operative. It actual not on. This is when the ignition is already on or when the car is running. Please assist

 

[Nitrogen]

can you post a photo of the type of radio you have ?

 

[Budger-Zim]

can you post a photo of the type of radio you have ?

Thanks Nitrogen for cosidering to assist. I really appreciate any form of assistance. I have bought a replacement radio thinking it was the unit fault, it displayed same error. I love this car please assist if you can. See pics attached

 

[teahead]

Strange. I wonder if there's a way to do a hard reset.

You COULD try disconnecting the battery cables, tie them with a wire tie or something and let it sit for a few hours.

Re-connect and see if it gets resolved.

 

[Nitrogen]

never seen that error message before, i think you have a loose connection at the back of the radio or a bad or loose fuse,
do you have the Infinity Amplifier ?
have you got a multimeter or test light so you can check some of the wires at the back of the radio ?

 

[Budger-Zim]

Strange. I wonder if there's a way to do a hard reset.

You COULD try disconnecting the battery cables, tie them with a wire tie or something and let it sit for a few hours.

Re-connect and see if it gets resolved.

Thanks a lot. I have tried it several times without any success. What is the Can Bus voltage for the radio, i read the message as implying not receiving ignition signal.

 

[Budger-Zim]

never seen that error message before, i think you have a loose connection at the back of the radio or a bad or loose fuse,
do you have the Infinity Amplifier ?
have you got a multimeter or test light so you can check some of the wires at the back of the radio ?

Thanks for the response. I do not have the infinite amplifier. Yes i have a multimeter, I am suspecting the accessory cable voltage as it appears to be associated with ignition switch. whats the voltage of can bus on the accessory wire, any alternative for providing switch signal

 

[Nitrogen]

the reason i asked about the Amp is because the wiring is different, i can take a look at the wiring diagram and see what might help diagnose this,
do you have any other electrical issues "any" ?

 

[Jan]

Measure CAN voltages with ignition on, one tester lead on ground, other on CAN wire.
CAN high is more than 2.5V
CAN low is less than 2.5V
Adding high and low equals approx 5.0V
Resistance between low and high should be 60ohm (battery disconnected)

Radio does not have ACC wire, it is CAN bus activated. Radio needs 4 wires to work (constant 12V, ground, can high, can low)

 

[Nitrogen]

oh ok, so you think it is the CAN BUS signal issue ?, you would need an oscilloscope or an advanced scan tool to check the CAN BUS
any other electrical issues ?

EDIT: sorry just posted same time as Jan (Jan knows way more about this stuff than me),
Great info Jan, i didn't know you could test it in this way

 

[Jan]

 

[Jan]

Also, has the radio ever worked? How long have you owned the car?
There is possibility that radio is deactivated in TIPM.

 

[Budger-Zim]

the reason i asked about the Amp is because the wiring is different, i can take a look at the wiring diagram and see what might help diagnose this,
do you have any other electrical issues "any" ?

Thanks a lot, I am very grateful. I truly appreciate.

 

[Budger-Zim]

View attachment 40103

Thank you

 

[Budger-Zim]

Also, has the radio ever worked? How long have you owned the car?
There is possibility that radio is deactivated in TIPM.

I have had the car for about 8 months, I bought it from a car dealer and error was dismissed as nothing. So the car came with the error message. I radio technician advised to change the radio, so I purchased an old tested unit on Ebay UK from a used parts dealer, and on connecting it, it displayed the same message. So I have two radio units now no solution.

 

[Budger-Zim]

oh ok, so you think it is the CAN BUS signal issue ?, you would need an oscilloscope or an advanced scan tool to check the CAN BUS
any other electrical issues ?

EDIT: sorry just posted same time as Jan (Jan knows way more about this stuff than me),
Great info Jan, i didn't know you could test it in this way

Measure CAN voltages with ignition on, one tester lead on ground, other on CAN wire.
CAN high is more than 2.5V
CAN low is less than 2.5V
Adding high and low equals approx 5.0V
Resistance between low and high should be 60ohm (battery disconnected)

Radio does not have ACC wire, it is CAN bus activated. Radio needs 4 wires to work (constant 12V, ground, can high, can low)

Thanks I have checked the Can bus voltages, I have 2.6V and 2.4V. I guess from this the total some of 5V is satisfied. Maybe from this we can rule out Can Bus Issue

 

[Budger-Zim]

Also, has the radio ever worked? How long have you owned the car?
There is possibility that radio is deactivated in TIPM.

Having checked Ground, Can Bus high and Low, Constant 12V and all being good. I am pointed to the TIPM deactivation possibility. Can you advise what this is and how I can can get this activated. In my view its now either 2 radio units all are faulty or possibly TIPM deactivation. Thanks for your continued assistance

 

[Jan]

I also deactivated radio in my TIPM to use aftermarket radio. I can test tomorrow or day after if it affects starting of OEM radio.

 

[Jan]

Also, check this thread

Radio Problems WK Related

I bought a MyGig radio for my 2010 rubicon:grinpimp: The 6-disk radio I took out of my rubicon ,I tried to put in my wifes 2010 Grand Cherokee and when i did it stared flashing all dash light and the radio would turn off and on:pissed::pissed::pissed::pissed::shaking: Now I have a CEL on my WK...

www.jkowners.com

 

[Jan]

Tested my radio. Radio disable in TIPM doesn't affect radio turn-on. Just station frequency disappears in EVIC.