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27th August 2023, 12:02 | #1 |
Gets stuck in
MG ZT-T CDTi Join Date: Jul 2007
Location: Sunny Suffolk
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Radio not switching off
Folks,
I have a couple of issues. Can you help? Model ZT-T 2004 Kit Hi-line sat nav Mk 4, BM 54 radio & digital TV unit + Harmon Kardon amp & speakers. Issue I have a problem whereby, if I switch the engine off when the radio is on, the radio stays on. Neither the audio controls on the head unit nor the steering wheel work. As it stands, it is steadily draining the battery. The sat. nav menu functions (right hand knob) do still work. I had the car serviced recently, and the reverse parking sensors and their control unit replaced. I now recall the mechanic saying that he had to remove the sat. nav. unit & power amplifier to do this. I originally thought the issue was with the head unit, but now I'm thinking that the connection between the HU and the amp. & radio have somehow been disrupted, so the HU controls can't tell them to switch off. Secondly, as well as replacing the parking sensors & controller, the reversing switch was replaced. That fixed the reversing light issue, but the parking sensors still don't work, & there is no beep on selecting reverse. (The 'lights left on' warning, and batt. back-up alarm sounder both still work. ) Questions
All help appreciated. Last edited by Kearton; 27th August 2023 at 12:09.. |
27th August 2023, 14:26 | #2 |
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MG ZT 190, Rover 75 CDTi, Honda VFR 750, Honda CB550F Join Date: Aug 2010
Location: Derby
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Check the I-bus line, it provides control signals to the sat nav, radio and PDC controller. It's a white wire with red stripe and yellow dots on it, usually causes probles where it's got wet.
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27th August 2023, 17:59 | #3 |
Gets stuck in
MG ZT-T CDTi Join Date: Jul 2007
Location: Sunny Suffolk
Posts: 621
Thanks: 1
Thanked 16 Times in 13 Posts
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