Thread: D2a Electrical Issues. Please Help.

Originally Posted by sierrafery

Check the connection in attached connector C0378/0392 pins 3 - 4 eventually give it some contact spray, the red brake warning is normal to come on together with the 3 amigos cos it's part of the diagnostic protocol(see attachment), actually it should come on every time but in reality it used to come on mostly on sensor related fault codes

Nice picture, without the coolant header tank! Well I repositioned the header tank, opened up the connectors and gave it a spray. I do not have the yellow connectors, C0377 just C0391, in orange. What are they for?

Julian

Originally Posted by Bohica

.... I do not have the yellow connectors, C0377 just C0391, in orange. What are they for?

Julian

0377 is for ACE, I guess you don't have ACE.
0391 is for SLS, do you have SLS?

Thanks, none of that imperialistic rubbish for me!
No ACE and No SLS.

Used to get same problem on Jaguars. Usually it was the wires to the front wheel sensors, which showed up intermittently on turning the wheels. Get your mechanic to check the continuity of the wires on the other three wheels, and also check cleanliness and resistance of sensors.
Let us know what happens

fredd

Originally Posted by fredd63

Used to get same problem on Jaguars. Usually it was the wires to the front wheel sensors, which showed up intermittently on turning the wheels. Get your mechanic to check the continuity of the wires on the other three wheels, and also check cleanliness and resistance of sensors.
Let us know what happens

fredd

Thanks Fredd I will talk to my mechanic about it. It has been back there and was there for a week. Thoroughly checked by an Auto Elec, who couldn't find an issue. Mechanic said fault logged again while he had it, showed fault as both L&R rear wheel sensors, then happened again (at slow speed again), but computer hadn't registered fault. Then said when he drove car and at 70 km/h the TC light came on and car slowed to a stop. He turned car off and re-started it, and drove back to the workshop. Didn't do it again. He sent the computer (under the dash) off the be re-built (at no cost to me). Since I've had it back, the TC & ABS lights (no DC light this time) have come on 3 times, all at slow speed again, but when I have turned off the car and re-started it, it has cleared. Now the SRS light has come on. This is so frustrating now, I just now think the car is jinxed and will be a never ending problem.

Vinnie

Initially fault was on one wheel only but has now appeared on another, correct?

I’d do the ‘option B’ fix.

Just to add a bit.
If a fault is cleared then the ABS light only will stay on until the car is doing about 10Kmh. I recalled this a couple of days ago when I had a RH front sensor intermittent message.
The fault has to occur 20 times before the three amigos illuminate. Again reminded by looking at the Nanocom.

I would still suspect that the hub has incorrect number of "cogs" at 55 rather than 60, although your recent problems sound like someone has added a few new faults.LOL

The SLABS could be faulty but it would probably also affect the speedo .
I would also trace the connectors between the ECU and slabs.
Regards Philip A