Please Help Electrical Problem On Galaxy

[supersi1980]

hi i need some help regarding my 99 ford galaxy, i have no indicators,no hazards,no intimitant wipers,no remote central

but i have chaged the stalks and changed the multi-function control module 3 times but im not sure what else it could be im not sure if the ecu controls that module im just completly cofused with it and need help

[sepulchrave]

These items are controlled by relays which lurk under the dash:

 

One for the indicators

 

One for the Hazard lights

 

One for the intermittant wipers plus a time delay module.

 

Don't know about the RCL.

 

What happened to knock out all these relays?

[supersi1980]

not really sure!!

 

ive now replaced

 

multi-function control module (gem) 3 times

light switch as im told that this also sends power to the gem

and the stalks

and all the relays and checked all the fuses

 

 

and still getting no where

cheers simon

[seatkid]

Check Fuse 55 (5A), it feeds the fuses for all those functions you mention F51,F52,F53,F54 which strangely are much higher rated fuses. Its located in the CJB (Central Junction box) - don't know which level though (3 level affair). If the fuse is OK, check you have 12volts there with the ignition on.

Edited May 1, 2009 by seatkid

[supersi1980]

ive also checked fuse 55 and im getting a negative feed from it not positive is this normal or is this a short?

thanks simon

[seatkid]

ive also checked fuse 55 and im getting a negative feed from it not positive is this normal or is this a short?

thanks simon

Please elaborate - whats a negative feed?

 

With the ignition on there should be +12 volts on all terminals of F51,F52,F53,F54,F55. (Meter negative lead connected to gnd/chassis - range set to 20volts or above)

Edited May 3, 2009 by seatkid

[Vince]

By a 'negative feed' do you mean it's a route to ground?

 

If so, then that's normal for any connection that goes to a device. Take the following example...

 

Think about the headlights. The bulb is connected to ground on one side. On the other the wiring goes to the headlight switch. The other side of the headlight switch would go to a live feed. Now I have ignored the dipped beam switch but for what I need to explain, this will do!

 

So When the switch is closed, the non-ground bulb wire has 12v (or so) on it, but open the switch and what do you get???

No connection to the positive supply, but a cold bulb filament between the wire and ground. And when the bulb is off, the cold filament is as good as just another piece of wire, so it will look like a route to ground. It's when you put 12v on it and the bulb heats up that the connection that seemed to be a ground will hold at 12v.

 

It's not only bulbs, almost any electronics will 'appear' to be a route to ground when the power feed is off. In general this will work many more times than not.

 

So if this is what you are seeing, then it's likely that there is an issue with the supply, i.e. the 12v rail.

 

Vince.

Edited May 3, 2009 by Vince

[supersi1980]

hi all ive only been able to trace this red with black stripe wire to the ignition switch but the only one coming form the battery goes straight into the gem module and most of the wires in the connector block for the indicators all seem to have negative feeds, and just so im not getting confused im checking via multi meter with my red lead onto perm live then with my black lead testing the other wires on the block connector and this is when i get my readings if i do this the other way round with the black to earth and using red to test the wires nothing happens

cheers quys simon

[seatkid]

hi all ive only been able to trace this red with black stripe wire to the ignition switch but the only one coming form the battery goes straight into the gem module and most of the wires in the connector block for the indicators all seem to have negative feeds, and just so im not getting confused im checking via multi meter with my red lead onto perm live then with my black lead testing the other wires on the block connector and this is when i get my readings if i do this the other way round with the black to earth and using red to test the wires nothing happens

cheers quys simon

Wierd way to check!..... :(...obviously not an electrician

 

Its sounds as if you have no 12 volts at any of the previously mentioned fuses.

 

I've checked on the TIS and these should all have a permanent live feed. There is a wire (Red/Black) that goes directly from the battery +ve terminal to fuse 55 via connector C815 pin 7 on the CJB (see diagram above).

 

The possibilities are

 

1. The wire at the battery +ve end is disconnected or has a bad/loose crimp

 

2. The wire at connector C815 pin7 has dropped off/broken or the pin/socket has been pushed back or something like that.

 

3. The wire/connector to fuse 55 has been pushed back/broken or something like that.

 

4. The red/black wire from the battery to the CJB is broken or has burnt open circuit due to short or fault/incorrect fuse.

 

As a temporary test measure , you can connect a wire from fuse 55 to the battery positive terminal. For safety sake include a fuse of some desription in the wire. Then you can check if your missing functions spring back to life.

Take extra care when connecting anything directly to the battery terminals as if there is a short, very large currents can flow causing wires to catch fire etc.

[seatkid]

Please may I stress again, take great care when connecting anything directly to the battery + terminal. Please include an appropriate fuse in the lead.

 

The consequence of not having a fuse there could be dire.

[supersi1980]

ok thanks i will try that and no me and electrics dont get on lol but just on to this the red with black stripe looks like it goes via the ignition switch is this where it gets its live feed or is it straight from the battery

cheers seatkid you are being a great help

 

simon

[Vince]

im checking via multi meter with my red lead onto perm live then with my black lead testing the other wires on the block connector and this is when i get my readings

 

Exactly like I said, any route via a circuit to ground can look like it's just a ground connection.

You don't learn anything by doing this test.

 

Vince.

Edited May 6, 2009 by Vince

[supersi1980]

thanks seatkid and vince its all sorted all it was is the wire on the battery had come disconnected and fell down behind the battery but i was looking at the wrong wire to start as there are 2 red black wires in that connector butt im well happy its all sorted......

 

cheers quys youve been a great help

Simon