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The Mitsubishi Pajero Owners ClubŪ The Mitsubishi Pajero, Shogun, Montero, Challenger, Raider and EVO 4x4 Owner's Club
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Mirage21 Newbie
Age: 48 Zodiac: Joined: 16 Feb 2023 Posts: 2 Location: Stourbridge
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Posted: Thu Feb 16, 2023 16:18 Post subject: Shogun mk3 3.5GDI Stereo and trip computer |
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Hi all Im new here so please point me the right way if this is posted in the wrong place. Im sure the question has been asked before. I have a 2003 SWB 3.5GDI Shogun and have installed an aftermarket stereo. I set the trip computer to read miles to empty before disconnecting the original stereo. Is there a way of still being able to switch between mpg and miles to empty with the aftermarket stereo?
Thank in advance. |
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Posted: Thu Feb 16, 2023 16:18 Post subject: Google Ads keep the POCUK free to join! |
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iam_TJ LifeTime Member
Joined: 10 Apr 2013 Posts: 351 Location: Europe
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Posted: Fri Feb 17, 2023 19:40 Post subject: Re: Shogun mk3 3.5GDI Stereo and trip computer |
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Mirage21 wrote: |
Is there a way of still being able to switch between mpg and miles to empty with the aftermarket stereo? |
Short answer - no. There is a proprietary data/control channel between the display head unit containing the display and the OEM media controls. |
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Mirage21 Newbie
Age: 48 Zodiac: Joined: 16 Feb 2023 Posts: 2 Location: Stourbridge
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Posted: Fri Feb 17, 2023 22:08 Post subject: |
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I thought as much so set it to the function I want and then remove the stereo and install the new one? |
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iam_TJ LifeTime Member
Joined: 10 Apr 2013 Posts: 351 Location: Europe
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Posted: Sat Feb 18, 2023 13:04 Post subject: |
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Yes but - I seem to recall that if the battery (or fuse) is removed for any reason the settings will need reconfiguring. According to the 2003 Electrical Wiring Supplement, page 3-374 ("Center Display or RV Meter <R.H. drive vehicles>") pins 7,8,17,18 (connector D-06 (MU801585) pins 1-20) on the Center display are connected to the Radio and CD player on pins 21,22,29 30 respectively (connector D-144 containing pins 21-36) and I ASSUME these are the data link.
I've had plans for a long time to reverse-engineer these links but not had opportunity so far. From a design perspective these 3-wire links are likely simple serial interfaces - maybe RS485 or RS232 ( see https://www.virtual-serial-port.org/article/what-is-serial-port/rs232-vs-rs485.html ) and so in theory might be on the easy end of the scale to determine and replicate the command sequences.
The automatic air-conditioning controls, DVD Navigation, and CD auto-changer all probably use the same communications method to the center display. |
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