No engine function, no dash lights except "Airbag off"
12-09-2016, 11:52 PM
#1
Newbie
Thread Starter
Join Date: Oct 2014
Location: Port Macquarie
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
ML320
No engine function, no dash lights except "Airbag off"
The latest on this troublesome '01,ML, worse as weather warms up in Aust. the ML is fineish cold, then if travelling over 8MPH & REVs under 1400RPM it looses throttle completely& BAS/ESP light on. we downshift forcing REVs up then sw. ignition Off/On, all OK till next time, (city driving, Brake & Throttle at same time & usually in 2nd).
I considered Throttle valve, stripped off ducting & found Crankcase venting onto Throttle valve ?
(US & Aussie cars had a PVC valve to vacuum manifold) Cleaned contaminated throttle valve with throttle cleaner, sealed up crankcase dump point & piped crankcase fumes into open bottle to test,
All OK !! No probs ! what detects fumes & shuts down throttle or sticky throttle valve detected & shut down??
Left car for Joy to enjoy drive home from work as I went to Sydney, Ph. call! car is Dead! No Go at all!
No engine function, no dash lights except "Airbag off". No hazard lights, Brake, Park unlock, fans.
Working is horn, headlights, radio.
(Joy wants to dump it, New tires)
I considered Throttle valve, stripped off ducting & found Crankcase venting onto Throttle valve ?
(US & Aussie cars had a PVC valve to vacuum manifold) Cleaned contaminated throttle valve with throttle cleaner, sealed up crankcase dump point & piped crankcase fumes into open bottle to test,
All OK !! No probs ! what detects fumes & shuts down throttle or sticky throttle valve detected & shut down??
Left car for Joy to enjoy drive home from work as I went to Sydney, Ph. call! car is Dead! No Go at all!
No engine function, no dash lights except "Airbag off". No hazard lights, Brake, Park unlock, fans.
Working is horn, headlights, radio.
(Joy wants to dump it, New tires)
12-11-2016, 12:18 AM
#2
Newbie
Thread Starter
Join Date: Oct 2014
Location: Port Macquarie
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
ML320
11/12/16
Merc. NoGo, hoping these volts may point to something like Ign.Sw?
No power at all F2,3,5,9,11,12,15,16,19,20,22,23,24,25,26,29,30,31 ,34,35,37,(40),42,45,46,47,48.
Power on #0 F4,8,13,17,(18)21,27,(40)41,43,44. note-(x)=No fuse inplace
Power on #1 F4,7,8,10,13,17,(18),21,27,(40),41,43,44. New on=7=wipers,10=Radio,
power on #2 F4,7,8,10,13,17,(18),21,26,27,(40),41,43,44. New on=26=Ign coils,
K12 is newish& swapped to test, same.
Secondary fuse panel RHS footwell
No power F13=FuelPump,17=rear window heat (F13 checked at sw on to confirm timer control =0v)
Power on #0 F5,6.
Power on #1 F1,2,3,5,6,(7)
Power on #2 F1,2,3,5,6,(7),8,26=Crt15, 8=seat heat (K9 relay Sw on Crt15 OK)
Note- At Ign on to #1or2 Airbag offlite comes on for 3sec,off 1sec on 1.5sec off every time
Batt discon 5hrs, same, jumper to running car, same
Working is Headlights, horn, & wipers(ign on),
Batt off removed 2x computer nr engine fuse & remount also disconnect ABS brake unit & refitt.
Also no screen wash for while, & noisy pump motor running near oil-filter lately (probably unrelated)
Merc. NoGo, hoping these volts may point to something like Ign.Sw?
No power at all F2,3,5,9,11,12,15,16,19,20,22,23,24,25,26,29,30,31 ,34,35,37,(40),42,45,46,47,48.
Power on #0 F4,8,13,17,(18)21,27,(40)41,43,44. note-(x)=No fuse inplace
Power on #1 F4,7,8,10,13,17,(18),21,27,(40),41,43,44. New on=7=wipers,10=Radio,
power on #2 F4,7,8,10,13,17,(18),21,26,27,(40),41,43,44. New on=26=Ign coils,
K12 is newish& swapped to test, same.
Secondary fuse panel RHS footwell
No power F13=FuelPump,17=rear window heat (F13 checked at sw on to confirm timer control =0v)
Power on #0 F5,6.
Power on #1 F1,2,3,5,6,(7)
Power on #2 F1,2,3,5,6,(7),8,26=Crt15, 8=seat heat (K9 relay Sw on Crt15 OK)
Note- At Ign on to #1or2 Airbag offlite comes on for 3sec,off 1sec on 1.5sec off every time
Batt discon 5hrs, same, jumper to running car, same
Working is Headlights, horn, & wipers(ign on),
Batt off removed 2x computer nr engine fuse & remount also disconnect ABS brake unit & refitt.
Also no screen wash for while, & noisy pump motor running near oil-filter lately (probably unrelated)
12-13-2016, 05:42 AM
#3
Newbie
Thread Starter
Join Date: Oct 2014
Location: Port Macquarie
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
ML320
Relay Volts K12, #30=12v but #85,86,87=0v.
Ign Sw. Red 12v always, pink 12v Pos-2, Orange 12v Pos-1,2 Grey 12v Pos-1,2 White 0v, Green 0v
I hope this is revealing ??
Anybody have diagrams? Crt Diag may help.
Joy no longer drives Merc, ~Too dangerous to take kids to school.
I was confident I had solved the throttle fault by piping the crankcase blow-by out of intake sys.
(I was on way to Sydney to buy a '04 Toyota Estima with the Jap import toys when this Merc. NoGo fault appeared for Joy who then hired a car as 35deg.
Our current '01 Tarago has 4000,000Km & No replacement parts except 2 sets front brake pads. radiator top tank & some screen top turret rust.)
Ign Sw. Red 12v always, pink 12v Pos-2, Orange 12v Pos-1,2 Grey 12v Pos-1,2 White 0v, Green 0v
I hope this is revealing ??
Anybody have diagrams? Crt Diag may help.
Joy no longer drives Merc, ~Too dangerous to take kids to school.
I was confident I had solved the throttle fault by piping the crankcase blow-by out of intake sys.
(I was on way to Sydney to buy a '04 Toyota Estima with the Jap import toys when this Merc. NoGo fault appeared for Joy who then hired a car as 35deg.
Our current '01 Tarago has 4000,000Km & No replacement parts except 2 sets front brake pads. radiator top tank & some screen top turret rust.)
