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AGuess
Elite Veteran
Date registered: Apr 2006
Location: Holly Springs NC
Vehicle(s): 93 500GE, 93 500GE, 2002 G500
Posts: 717
| EPS, ABS, Brake Light, etc. all came on.
Hi Everyone.
2002 G500 with 200K miles.
EPS, ABS, Brake Light failure, etc. came on today. First thought was battery or alternator. Both ok.
So, next thought is K-40 relay?
I looked for this in the forum and found something about K-40 relay, but want to ask here.
Thoughts? I need to fix tomorrow so my daughter can drive while I pull her Tranny in her 500GE this weekend.
Thank you in advance.
AGuess |
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DUTCH
Administrator Doppelgänger
Date registered: Apr 2006
Location: US, GA, Atlanta
Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter
Posts: 9963
| RE: EPS, ABS, Brake Light, etc. all came on.
No K-40 Relay in a 2002 G.
No suggestions for relief. Sorry. |
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H1LM002G55
Expert
Date registered: Mar 2010
Location: S Florida / Geneva / Jeddah
Vehicle(s): 500 GE, G55, LM002, H1
Posts: 1796
| Re: EPS, ABS, Brake Light, etc. all came on.
I still think alternator or battery.
Why are you pulling tranny on 500GE? ? ? |
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G4me
Veteran
Date registered: Jan 2012
Location: Honolulu, HI
Vehicle(s): 2002 G500, FJZ80 LandCruiser
Posts: 111
| RE: EPS, ABS, Brake Light, etc. all came on.
I am with HL1M.
I had the same problem with my 2002 and it turned out to be the voltage regulator. I would take another look at the alternator.
Good luck let us know what you find.
G4me |
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AGuess
Elite Veteran
Date registered: Apr 2006
Location: Holly Springs NC
Vehicle(s): 93 500GE, 93 500GE, 2002 G500
Posts: 717
| Re: EPS, ABS, Brake Light, etc. all came on.
Thanks. I’ll get alternator tested at another place.
Pulling tranny on 500GE to fix bad oil leak, rear main engine seal and replace bad gasket in transmission making it slow to go in reverse. |
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H1LM002G55
Expert
Date registered: Mar 2010
Location: S Florida / Geneva / Jeddah
Vehicle(s): 500 GE, G55, LM002, H1
Posts: 1796
| Re: EPS, ABS, Brake Light, etc. all came on.
I have the same problem also with slow reverse gear. I will pull mine also. I also bought a new torque converter and Kevlar transmission bands from Jono. |
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Ertech
Veteran
Date registered: May 2016
Location: Montreal CA
Vehicle(s): 2011 G550
Posts: 156
| Re: EPS, ABS, Brake Light, etc. all came on.
check if your brake lights work. can it be the brake pedal switch? |
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AGuess
Elite Veteran
Date registered: Apr 2006
Location: Holly Springs NC
Vehicle(s): 93 500GE, 93 500GE, 2002 G500
Posts: 717
| Re: EPS, ABS, Brake Light, etc. all came on.
Update:
Battery and alternator are ok.
I ordered a brake pedal switch today to be safe, not expensive.
Tonight I hooked up a new Star Diagnostics tool, see my post about that made tonight.
It told me that I have a bad ESP break pressure sensor, I’ll order one.
I cleared the codes using the new star tool and will update this post after I change the pressure sensor.
Thanks for all of your help. |
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ychung
Veteran
Date registered: Aug 2015
Location: SO CAL
Vehicle(s): 2004 G500, 2014 ML350, 2008 S550
Posts: 196
| Re: EPS, ABS, Brake Light, etc. all came on.
Hi,
Do you have the part# for brake pressure sensor? |
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AGuess
Elite Veteran
Date registered: Apr 2006
Location: Holly Springs NC
Vehicle(s): 93 500GE, 93 500GE, 2002 G500
Posts: 717
| Re: EPS, ABS, Brake Light, etc. all came on.
I’ll post it on Monday when I order it. |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3006
| Re: EPS, ABS, Brake Light, etc. all came on.
OT on the 500GE trans issue, but these reverse gear syncros can wear due to a wobbling transmission pump in the nose cone which will also cause leaks. The R gear is closest to the pump and goes first. Pump will need rebuilding with the trans work. I had this issue with my 1995 G320 722.3 and a basic rebuild was under $1500 including R&R and engine main seal replacement. |
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AGuess
Elite Veteran
Date registered: Apr 2006
Location: Holly Springs NC
Vehicle(s): 93 500GE, 93 500GE, 2002 G500
Posts: 717
| Re: EPS, ABS, Brake Light, etc. all came on.
A few things.
YChung, I am sorry but the dealer did not order the brake pressure sensor, that appears to only come as part of the brake booster assembly. I have found a few using google search, but I have no idea if the old one will come out of the brake booster or these parts will fit. My dealer ordered the travel sensor, I will change it and update if my warning lights stay off.
Otiswesty, My friend who is a MB mechanic at dealer removed the cover from the pump last night, we expected to find one of the two white Teflon? seals bad, what we found was that the inside black rubber seal had a tear in the lip, causing fluid to pass by as pressure builds up. New seal ordered today. All interior parts look great, so we are just replacing all seals, which should fix the problem.
Thank you again.
AGuess |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3006
| Re: EPS, ABS, Brake Light, etc. all came on.
That's great news! |
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