S and M lights!
#1
08-27-2018 | 04:49 PM
Thread Starter
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6th Gear
Joined: Aug 2018
Posts: 6
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S and M lights!
I knew to owning a Land Rover just bought 03 discovery 4.6L HSE. Had it 2 days now I have the damn maintenance and these 2 S and M lights flashing!. Guys i just retired out of the Army last 17yrs were in Special Operations. I hunt terrorist all day long but don't have a clue on this ****. So ran diagnosis. I got 2 codes #1 is P0705 and the 2nd code is P0430. Do drop a grenade in her and watch my money go bang? Or can you fine people help me out? Thanks to all!
#2
08-27-2018 | 05:55 PM
Rock Crawling
Joined: Nov 2017
Posts: 450
Likes: 81
From: Kailua Kona, HI
#5
08-27-2018 | 07:40 PM
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6th Gear
Joined: Aug 2018
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Likes: 0
Thanks alot.
One question. How do you clear the codes?
#6
08-27-2018 | 07:42 PM
Rock Crawling
Joined: Nov 2017
Posts: 450
Likes: 81
From: Kailua Kona, HI
Generally scanners have the option to clear codes. What did you use to retrieve those faults?
If you can't clear them, sometimes a capacitive discharge will wipe them. Remove both terminals from the battery, touch and hold the leads together(NOT TO THE BATTERY) for a few seconds and then let them set disconnected for 5-10mins and reconnect to the vehicle.
If you can't clear them, sometimes a capacitive discharge will wipe them. Remove both terminals from the battery, touch and hold the leads together(NOT TO THE BATTERY) for a few seconds and then let them set disconnected for 5-10mins and reconnect to the vehicle.
#8
08-27-2018 | 08:36 PM
Camel Trophy
Joined: Sep 2017
Posts: 3,545
Likes: 1,185
From: Mission BC Canada
Check all your clamps on the throttle body hoses and check for leaks and big cracks in that hose, as well as your air cleaner body. I had this 3 times, low battery, bad battery connection, throttle body hose popped of throttle body. You want to check your battery charge level if it is low you will get these.
#9
08-27-2018 | 08:39 PM
Camel Trophy
Joined: Dec 2009
Posts: 3,807
Likes: 909
From: Charlotte
There are something like 14 different faults that can trigger the flashing M & S lights and limp home mode. To diagnose it correctly you'd need a code reader that can read transmission codes. Most lower-priced scanners read and clear engine management codes only.
That said, the most common cause of the flashing M&S and limp mode is low voltage, which is why others are telling you to clean the battery connections and the grounds.
That said, the most common cause of the flashing M&S and limp mode is low voltage, which is why others are telling you to clean the battery connections and the grounds.
#10
08-28-2018 | 12:49 PM
Rock Crawling
Joined: Jul 2015
Posts: 312
Likes: 24
From: Fayetteville, AR / East Africa
When I first bought my Discovery 2 three-and-a-half years ago mine did the same exact thing. Turns out, it was as simple as my battery cable connections being loose.
Make sure both positive and negative cables are tight and fully down, that they can’t jiggle around over bumps. If there’s any play, and you’ve tightened down as far as you can go, the easy fix is to just grab a couple of battery post shims from your preferred auto store. That’s what I ended up doing, and never a problem since.
Make sure both positive and negative cables are tight and fully down, that they can’t jiggle around over bumps. If there’s any play, and you’ve tightened down as far as you can go, the easy fix is to just grab a couple of battery post shims from your preferred auto store. That’s what I ended up doing, and never a problem since.