Rovacom?

6686 Views 20 Replies 8 Participants Last post by John W, Jan 18, 2010

nelson845

Discussion Starter · Jan 15, 2010

Need help with diagnostics.I came home last week and parked the Range Rover and a half hour later it would not start.All the lights in dash come on,but when I turn the key nothing but the click of the starter relay (also the display for the heater goes out).I have a new battery and a new fuse box.I jumped the starter solenoid and got it to crank over but it wont start.At the moment the only fault it gives is key in ignition after I remove the key.I tried to start it in neutral but its the same.I have ran out of ideas(and beer) so if there is

ray: Anyone near or around Orange County,NY with some type of portable diagnostics equipment that would be willing to travel to Middletown NY and Help me out,Im willing to pay for your services.

1 - 20 of 21 Posts

viperover

· #2 · Jan 15, 2010

Try another relay, even though you can here it click dont mean its making contact.
Also the security feature is if you try and start it via the solenoid on starter then it cuts ignition, it senses this via the crank sensor.

Have you checked the main maxi fuses, I forget which one is the starter solenoid fuse but check it out on cover
A test light comes in handy with problems like this but not on all circuits, starter circuit ok to use test light

RRToadHall

· #3 · Jan 15, 2010

Sounds more like dirty cables or a weak battery. Just because the battery is new doesn't mean it is getting charged properly. Clean up your contacts, especially grounds, and test your battery voltage.

nelson845

Discussion Starter · #4 · Jan 16, 2010

OK,I did try a different relay but it was a used relay not a new one,still "nothing'.I had already checked all the maxi fuses(they were fine)but the fuse box did not look healthy so I put a new one in,(which didn't change anything).And I guess the next step is go through each ground contact and repair and replace whatever I find!Thank's for all the input :thumb:

PAULBROM

· #5 · Jan 16, 2010

Nelson as regards ignition key just get some electrical contact cleaner and spray the ignition barrel.
As you insert the key it forces back a swith plate which tells the BECM the key is inserted,but after time crap builds up and somtimes stops the swich returning after you have removed the key.

The arrow indicates the swithplate that can stick.

See less See more

G

· #6 · Jan 17, 2010

Try replacing the cable that runs from the starter to the battery positive terminal. I had a very similar issue and that fixed it. The cable looked fine but was heavily corroded inside. You can get 2 gauge wire and terminal connectors from a local parts store for about $15. Good luck.

Rick-the-Pick

· #7 · Jan 17, 2010

Sounds like the engine ecu has lost contact with the becm.

Get some diagnostics on there & resync it in.

John W

· #8 · Jan 17, 2010

Rick-the-Pick said:
Sounds like the engine ecu has lost contact with the becm.

Get some diagnostics on there & resync it in.

Rick,
Just to settle my curiosity,if the problem is as above,would there be/not be a message on the message centre " engine disabled" or such like :?

RRToadHall

· #9 · Jan 17, 2010

Disabled due to alarm and loosing synch are two different things. Rick is saying it sounds more like a case of Rangie Alzheimers than a case of someone triggering an alarm issue.

nelson845

Discussion Starter · #10 · Jan 17, 2010

My Blackbox-Solutions BeCM Sync-Mate is giving me a single RED flash after the initial BLUE light.Going by the Sync-Mate user guide,this means "EMS did not respont to wakeup".I think it could be as simple as a wire being dead/broken/not grounded,or an ECU gone bad!?..I already checked all the ground points(RAVE).I will keep at it,any sugestions I'll be listening(I'll replace that starter wire today)Thanks everyone for all your input,Nelson. :think:

nelson845

Discussion Starter · #11 · Jan 17, 2010

I'm under the impression that if the BeCM lost sync with the ECU/ECM the engine would still turn over,it just wouldnt fire.Am I correct? :?:

E36 Phantom

· #12 · Jan 17, 2010

nelson845 said:
I'm under the impression that if the BeCM lost sync with the ECU/ECM the engine would still turn over,it just wouldnt fire.Am I correct? :?:

This is exactly what I was thinking. Most cars the starter is wired direct from the ignition switch, and the engine will crank independent of the ECU. Since his is not cranking it seems like something else could be the issue.

John W

· #13 · Jan 17, 2010

nelson845 said:
My Blackbox-Solutions BeCM Sync-Mate is giving me a single RED flash after the initial BLUE light.Going by the Sync-Mate user guide,this means "EMS did not respont to wakeup".I think it could be as simple as a wire being dead/broken/not grounded,or an ECU gone bad!?..I already checked all the ground points(RAVE).I will keep at it,any sugestions I'll be listening(I'll replace that starter wire today)Thanks everyone for all your input,Nelson. :think:

Is your engine management system the GEMs or the Bosch.I was under the impression the BBS sync mate only works for the Bosch(motronic) enigine management system :think:

John W

· #14 · Jan 17, 2010

E36 Phantom said:
nelson845 said:

I'm under the impression that if the BeCM lost sync with the ECU/ECM the engine would still turn over,it just wouldnt fire.Am I correct? :?:

Click to expand...

This is exactly what I was thinking. Most cars the starter is wired direct from the ignition switch, and the engine will crank independent of the ECU. Since his is not cranking it seems like something else could be the issue.

When my GEMs system BECM went into an alarmed state and the BECM had to be reset by Rick ,the engine would not turn over at all when trying to start the engine.The message centre said " Engine disabled".Also entering the EKA code would not disarm the system.

NELLY

· #15 · Jan 17, 2010

hi just had a problem locking mine on the remote would unlock but not lock after reading this post sorted the problem if the display say ignition key in the flap on the ignition has stayed in as per photoin previous post just got a small screw drive and flipped it out no message now and car locks and unlocks as it should do on remote .

neil :dance:

nelson845

Discussion Starter · #16 · Jan 17, 2010

John W said:
nelson845 said:

My Blackbox-Solutions BeCM Sync-Mate is giving me a single RED flash after the initial BLUE light.Going by the Sync-Mate user guide,this means "EMS did not respont to wakeup".I think it could be as simple as a wire being dead/broken/not grounded,or an ECU gone bad!?..I already checked all the ground points(RAVE).I will keep at it,any sugestions I'll be listening(I'll replace that starter wire today)Thanks everyone for all your input,Nelson. :think:

Click to expand...

Is your engine management system the GEMs or the Bosch.I was under the impression the BBS sync mate only works for the Bosch(motronic) enigine management system :think:

You have a point there,My truck has the GEMs system. :?:

nelson845

Discussion Starter · #17 · Jan 17, 2010

FYI,It's never given me the "engine dissabled"fault.

John W

· #18 · Jan 17, 2010

If I understand correctly,when you turn key to position 3, you hear RL16(starter relay engage) but the starter solenoid does not engage,so the starter motor does not tturn.You have jumped the solenoid terminals ie shorted them together and then starter motor turns.

Have you tried applying 12V direct to the solenoid coil terminal to see if the solenoid then engages and starter motor turns.

John W

· #19 · Jan 17, 2010

Another thought is the shift interlock switch.If this switch that prevents the vehicle being started in any position other than P or N then I think it will give the same symptoms you are experiencing :think:

nelson845

Discussion Starter · #20 · Jan 17, 2010

Yes,I jumped the starter solenoid with the key in position III,it cranked over but would not fire.I tried to start it in neutral and it did the same.I decided to try to crank it in gear and it's the same in park,reverse and any other gear! :think:How can I check the shift interlock switch. :?:

1 - 20 of 21 Posts

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