EP Fault - ECU Failure?

mike100 · 1st February 2020, 13:27

For reference, the car is a 2004 2.0 diesel automatic

So yesterday the car wouldn't start - no warning lights, but 'EP' on the gear selector bit. book says 'emergency programme' due to a gearbox fault - though this seems to be working perfectly?

Had the RAC out - seemed to know rovers fairly well, checked all fuses, fuel pump, gearbox, ECU, all sorts... unfortunately he could not get his fault reader to talk to the ecu. His verdict was although he could see no damage to the ecu, it must be this because when you put the ignition on, a lot of the lights do not come on (glow plugs, etc.)

really not sure what to do next! Thinking send the ECU off (anyone on here that does them??) but not sure if there is something I am missing...

Cheers, Mike.

vitesse · 1st February 2020, 14:00

Just up the road you have Soul's of Olney and one of the foremost experts in the whole country working there (Phil-T4), posted on here earlier today and might see your troubles, if not give them a call.

Regards

suzublu · 1st February 2020, 15:02

Check the plenum for water, see if the Ecu has been wet. Also make sure the battery is good, try a reset to see if that fixes it.

marinabrian · 1st February 2020, 15:53

Quote:

Originally Posted by mike100

For reference, the car is a 2004 2.0 diesel automatic

So yesterday the car wouldn't start - no warning lights, but 'EP' on the gear selector bit. book says 'emergency programme' due to a gearbox fault - though this seems to be working perfectly?

Had the RAC out - seemed to know rovers fairly well, checked all fuses, fuel pump, gearbox, ECU, all sorts... unfortunately he could not get his fault reader to talk to the ecu. His verdict was although he could see no damage to the ecu, it must be this because when you put the ignition on, a lot of the lights do not come on (glow plugs, etc.)

really not sure what to do next! Thinking send the ECU off (anyone on here that does them??) but not sure if there is something I am missing...

Cheers, Mike.

Mike, open up the plenum chamber, remove the plastic lid from the enclosure the ECM lives in, and behind the ECM is where the glowplug relay lives.

There you will find a connector, of which pin 12 is is a red and white cable, temporarily connect a 12v supply to this cable, and see if the car will then start.

Failing that, I have replacement ECM on the shelf for a plug and play replacement, and also offer a repair and testing service for these units.

Best of luck

Brian

1st February 2020, 13:27	#1
mike100 Newbie none at the moment Join Date: Oct 2019 Location: Milton Keynes Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts	EP Fault - ECU Failure? For reference, the car is a 2004 2.0 diesel automatic So yesterday the car wouldn't start - no warning lights, but 'EP' on the gear selector bit. book says 'emergency programme' due to a gearbox fault - though this seems to be working perfectly? Had the RAC out - seemed to know rovers fairly well, checked all fuses, fuel pump, gearbox, ECU, all sorts... unfortunately he could not get his fault reader to talk to the ecu. His verdict was although he could see no damage to the ecu, it must be this because when you put the ignition on, a lot of the lights do not come on (glow plugs, etc.) really not sure what to do next! Thinking send the ECU off (anyone on here that does them??) but not sure if there is something I am missing... Cheers, Mike.

1st February 2020, 14:00	#2
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,528 Thanks: 395 Thanked 823 Times in 652 Posts	Just up the road you have Soul's of Olney and one of the foremost experts in the whole country working there (Phil-T4), posted on here earlier today and might see your troubles, if not give them a call. Regards

1st February 2020, 15:02	#3
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,912 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	Check the plenum for water, see if the Ecu has been wet. Also make sure the battery is good, try a reset to see if that fixes it.