98 D1 No crank

[dkfrizzell]

98 D1 No crank **FIXED**

Hey all, been a while since I've posted.. was hoping to get some ideas as to what is going on.

• 98 D1 Auto trans.
• Engine will not crank over.
• No check engine light when I turn the key to on position.
• Good fuel pressure.
• No power is getting to the starter solenoid.
• With key on on position, I can manually jump the starter and it will start and run.
• Fuses all good under dash and under the hood.
• Tried park, neutral, and every thing in between.
• Verified starter relay under passenger footwell was good.
• Tried to reset alarm using key in door trick.

The main thing that seems to puzzle me is why I don't have a CEL when I turn the key on. I think that is a major clue here but not sure where else to look.

Thanks all.
Dave

 

[D Chapman]

CE light bulb may be blown.

Checked the ground wires, yet?

 

[pleco]

Search the forum for spider unit.

It is a second inline immobiliser. Buy the bypass plug from Land Rover and remove and bypass the spider.

No external signs that it is faulty.

 

[dkfrizzell]

Ya, grounds appear to be good. I checked the ones by the relays in both footwells. Any others I should look at?

As far as the spider, correct me if I am wrong, but doesn't the spider kill the fuel pump and not the starter? I really dont want to pull the dash apart if I don't have to. Blah. And the spider wouldn't make the CEL not illuminate would it? I was under the impression when you don't have a CEL with the key turned on, it is some kind of communication problem with the ECU. Or am I incorrect on this?


Thanks

 

[MontrealRR90]

Search the forum for spider unit.

It is a second inline immobiliser. Buy the bypass plug from Land Rover and remove and bypass the spider.

No external signs that it is faulty.

Are you saying that theres a Bypass that land rover sells for the spider unit.Never heard of that one.Do you have the part number.

 

[agbuckle98]

Ya, grounds appear to be good. I checked the ones by the relays in both footwells. Any others I should look at?

As far as the spider, correct me if I am wrong, but doesn't the spider kill the fuel pump and not the starter? I really dont want to pull the dash apart if I don't have to. Blah. And the spider wouldn't make the CEL not illuminate would it? I was under the impression when you don't have a CEL with the key turned on, it is some kind of communication problem with the ECU. Or am I incorrect on this?


Thanks

As Dan said earlier, CEL bulb could be blown, not unheard of. Have you scanned it for CEL codes?

 

[dkfrizzell]

No, I have not scaned for codes... no reader.

Lets say just for s&g's that the CEL bulb is blown, then would that point to the spider as the problem?

And as a side note, the CE light was working on Saturday and it would roll over just fine.

These problems didn't start until I was tracking down a dead short that was popping my engine management fuse under the dash. That problem turned out to be the heating element wire on the oxygen sensor was sorted out on the transfer case. While trying to find that problem, I had unpluged the fuse box, ecu, multi function relay, and a few other various relays to narrow my search. And yes, I have checked (and triple checked) to make sure everything is plugged back in.

Thanks again.

 

[agbuckle98]

when you jump the starter, how do you do it? Do you jump the relay in the passenger footwell, or go right to the starter? Maybe also want to test the ignition switch itself and make sure the "crank" position still works.

 

[dkfrizzell]

I jumped it right on the starter. I am sure the switch is good because i put a test light on the starter relay in the passenger footwell. When I turned the key to the start position, the White/Red wire coming into the relay got power. Of the 3 other wires coming into that relay, one other (i think brown/orange) had continuous power when the switch was in the on position and the other 2 had nothing regardless of key position.

 

[CandiMan]

Not being totally familiar with the Disco cranking circuit, my comments are base on a basic cranking circuit.

• Since you have power going to the relay when the ignition is in the start position, can you hear or feel the relay energizing?
• Do you have a negative (unsually from the neutral safety switch) signal going to the relay?
• A relay consist of two circuits, a signal and load circuit
• The signal circuit is usually the ignition (+) signal from the ignition switch and neutral (-) signal from the neutral safety switch
• The load circuit is the actual power that's sent to the load (the starter in this case)
• Check to make sure you have load voltage coming to the relay.
• You already stated you have power from the ignition switch to the relay, then check for a neutral negative signal to the relay.

If any of the above were missing, you will have a no crank situation.

 

[MontrealRR90]

Ya, grounds appear to be good. I checked the ones by the relays in both footwells. Any others I should look at?

As far as the spider, correct me if I am wrong, but doesn't the spider kill the fuel pump and not the starter? I really dont want to pull the dash apart if I don't have to. Blah. And the spider wouldn't make the CEL not illuminate would it? I was under the impression when you don't have a CEL with the key turned on, it is some kind of communication problem with the ECU. Or am I incorrect on this?


Thanks

i just had a problem that was similar on a customers car.When the cel doe not come on when you start it leads to the spider. When took a good spider unit from another truck and it fired right up !

 

[dkfrizzell]

**UPDATE**

Just as a PSA, when testing a relay, be sure the relay you are using to test with works!

I found the problem was simply the starter relay under the passenger footwell was bad. I had previously checked this, but the relay I used to test was also bad! So after a lot of head scratching, cursing, etc. The Disco I is back on the road.

Thanks to all that chimed in.

**********

 

[singingcamel]

**UPDATE**

Just as a PSA, when testing a relay, be sure the relay you are using to test with works!

I found the problem was simply the starter relay under the passenger footwell was bad. I had previously checked this, but the relay I used to test was also bad! So after a lot of head scratching, cursing, etc. The Disco I is back on the road.

Thanks to all that chimed in.

**********

thanks for the update , we all learn this way:applause:

 

[barefoot]

thanks for the update , we all learn this way:applause:

x2....