which fuse is blown?

[veekaydee]

Hi from Dubai.

This motor home R-vision 2003 stratus was used by us on holidays in US. We bought it and brought it to Dubai.(u.a.e)

Vin 5B4KP57G723344128P31432


1. I took off battery to clean the terminals. All the while it was connected to A/c power through transformer 110 volt i.e the battery charger from converter was working. When I was putting battery positive terminal wire got grounded while it was not connected to battery. Now ignition will not switch on. I have checked all the fuses in the engine compartment but all are ok. can not check the relays as I do not know how to check them. What could be wrong?

2. Though there is an agent for GM here but no agent for workhorse. Do you know of any workshop which can service the chassis here?

3. I wanted to order the cd( P&W Engine Service Manuals and Wiring Schema-CDs) but it does not have my chassis wiring diagram. Please advise what shall I buy that will help me here considering that there is a little hope of finding some one who has worked on this chassis.

Any guidance for the future of this motor home will be highly appreciated.
regards

[-Gramps-]

There are other fuse boxes as well. There should be one under the dash and sometimes there is one on top of the dash depending on the coach builder. You may have blown a relay, but I suspect that it is just a fuse. The power transfer switch may be fused internally. Hopefully someone here will be able to help more that I can.

[DriVer]

Quote:

Originally Posted by veekaydee Hi from Dubai Vin# 5B4KP57G723344128 P31432

OK that's fixed.

Quote:

1. I took off battery to clean the terminals. All the while it was connected to A/c power through transformer 110 volt i.e the battery charger from converter was working. When I was putting battery positive terminal wire got grounded while it was not connected to battery. Now ignition will not switch on. I have checked all the fuses in the engine compartment but all are OK. can not check the relays as I do not know how to check them. What could be wrong?

Not being in Dubai to see this for myself and "thank you for joining us here", I don't see here anything you did would have compromised the system to the point where the vehicle won't start.

You wrote, "When I was putting battery positive terminal wire got grounded while it was not connected to battery." If your positive or red wire was not connected to the battery and you touched the frame it is unlikely that you caused any damage. If you touched the positive terminal to ground while it was connected to the battery, you would have seen a lot of sparks and smoke quite possibly. Even then, unlikely to have compromised the start system.

What is the condition of the battery at this time? What are the DC voltages between the poles. You should have at least 12.1 to 12.5 volts I would expect if your battery was fully charged. If the volts are very low in the low 11s for example or worse there may not be enough power there to activate the starter. I would try a different battery or get a jump start from someone.

• Is the negative terminal on tightly ? (push on the battery clamp and turn it slightly back and forth while completely seating the clamp.)
• I am hoping you didn't cross the cables ??? (Positive to negative although that would be difficult to accomplish.)
• Is the positive terminal on tightly? (push on the battery clamp and turn it slightly back and forth while completely seating the clamp.)
• Measure the voltages, if this is an original battery its likely not too good of a battery and may need replacement.

In any 12 volt diagnostic mode, assuring a fully charged battery, tight clamps and a firm ground eliminates may difficulties when problem such as yours are observed.

I would not immediately suspect starter relays or fuses until you can rule out the power and ground issue.

["007"]

Here is a LINK TO FUSE'S on your Workhorse chassis. You will see a starter relay and fuse for ignition system.
Welcome to irv2 and Workhorse chassis forums.

[veekaydee]

Thanks for welcome & prompt responses.

Tried jump start & no lights in the cluster..checked negative & positive terminals.. ALL OK. checked with ohm meter. voltage 12.4 .

When +ve was grounded, there was little intensity spark but I think that was due to ac converter charging the battery as motor home was connected to ac 110 volt. (220 volt local here & have put a step down transformer to 110 volts but instead of 60 hz it is 110 v 50 hz That shall make app -20% cooling difference as the compressor motor's rpm will drop 20% not to anything else).

There is no lights in the instrument cluster at all. When I put the key & turn on the ignition.. no abs warning or charging etc.

To me it is typical -ve not being properly grounded but have checked. on grounding on the chasis & fuses there is voltage of 12.5 . some fuses have it while some not but that time I did not have the schematics from http://www.oemys-performance.com/techtips5.htm#fuses. Will probe further tomorrow as it is 1 am here. Please do add other possibilities for me to check.

Room is working fine i.e a/c, lights, water pump,slide out etc etc. but not the entrance door step.

["007"]

Steps work from the chassis battery and are fused alone. All your fuses are marked as in the pictures you received. It could be a larger amp fuse, 40amp-30amp causing problem and when you check fuse pull fuse and check for continuity. A fuse may test good but spring clips it plugs into could be dirty or corrosive. By removing clips will become clean by movement of fuse. If you have contact spray good time to clean also.
The converter in most cases only charges your house batteries.
The alternator will be charging your chassis battery. The spark you saw was from your chassis battery, your positive battery lead will have red tape on it just make sure you have both pos & neg leads correct before connecting as DriVer had said.

[DriVer]

Quote:

Originally Posted by veekaydee Thanks for welcome & prompt responses. Tried jump start & no lights in the cluster..checked negative & positive terminals.. ALL OK. checked with ohm meter. voltage 12.4 ..

I'm still leaning toward connectivity at the battery or a bad battery. Did you check the frame ground?

Meter across the battery terminals when someone operates the ignition switch and see what the voltage is. If there's no change we could be possibly looking at a bad solenoid as well in the starter motor. It happened to me.

Quote:

When +ve was grounded, there was little intensity spark but I think that was due to ac converter charging the battery as motor home was connected to ac 110 volt.

There is a parasitic drain on the battery when you connect the cables and there may be a slight spark but nothing to write home about. That's normal. Being connected to shore power does not normally charge the automotive battery.

[veekaydee]

OK solved.. Little (NO Big for am electrical engineer) embarrassed to admit but here it is.

+ve terminal had 2 cables connected to it & when I put it back second cable, kind of longish & less rigid fell down & kind of hid itself in the other cables. Actually this should be no excuse for me being completely careless.

But this made me become a member of this forum & that is the silver lining. Thank you all for being so helpful & prompt.

[DriVer]

Quote:

Originally Posted by veekaydee But this made me become a member of this forum & that is the silver lining. Thank you all for being so helpful & prompt.

veekaydee, Congratulations on resolving your situation. Reducing issues down to the lowest common denominator before contemplating advanced diagnostics is the path I recommend and pursue.

Welcome to iRV2.com and we hope that you can stay with us for the long run. Consider if you will uploading some pictures in our photo gallery. Please also consider joining our iRV2 Workhorse Owners Group as well.

[George Z]

Persistence pays off.
Good Job

George