P38 Fuse Box Repair and Replacement. The engine compartment fuse box on the 4. Keeping your battery terminals clean and the battery maintained helps to avoid the corrosion problem.
Another problem can be spilled coolant getting into the fusebox. Photos below show the effect of. We recommend covering the fusebox with plastic before filling the header tank with coolant. Although fusebox problems can lead to a variety of weird symptoms sometimes even leading you to think there are BECM issuesthe most common problem is HEVAC related due to burning out of Relay 7 and its mounting terminals.
There are different theories about why this happens; I have heard from several Rover techs including Chris Schaeffer, an ex-Land Rover Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part, that the most frequent immediate cause of burned out terminals on the fuse box is clogged pollen filters imposing additional load on the climate control system blowers. He advises changing the pollen filters much more frequently than the recommended 30, miles to prevent.
See the Pollen Filter Replacement page to find out Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part dirty they get even in normal street use.
However both Ron Beckett, who is an electronics technician, and I an electrical engineer have doubts about this as reduced airflow normally reduces the load on any blower or pump. If your fusebox does eventually give up, instead of replacing it you can repair it using the following ingenious illustrated procedure supplied by Ron Beckett. Note that fusebox problems can cause a variety of symptoms.
Even experienced mechanics can be fooled by this, thinking the BeCM needs replacing -- every 4. Instead the problem can often be cured at minimal cost. Hevac Problems and RL7 Failure The most common problem in the fuse box is failure of the relays that power the electric fans -- particularly RL7. You can inspect the relays at the front of the fusebox for signs of burnt or discoloured spots on the housing. Ron Beckett found that not only the relay but the underlying terminals were affected due to the heat.
Because the HEVAC display had illuminated the book symbol, Ron had a check done with Testbook to find out what was the cause; Testbook indicated a number of reasons, one of which was a faulty relay RL7. So he pulled RL7 which controls one of the heater fans out of the engine compartment fuse box and found the fuse box itself was charred and that the output terminal was loose. It seemed as if the circuitry was not up to the task.
Ron reports that the check book symbol on the dash comes on for a number of faults -- the faulty relay will be logged as a fault in the Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part and it will be specified as RL7 in the fault-finding. Ron has played with the LR Testbook and seen that logged fault on his car.
The check book symbol will clear when you turn Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part car off but will reappear the next time - maybe not immediately but it will reappear. Ron also found that with RL7 having failed, the air conditioning did not provide very cool air.
Discussions with the airconditioning serviceman who was visiting the workshop gave an explanation. The serviceman suggested that there was insufficient airflow over the evaporator.
After the fusebox was repaired, the air conditioning once again gave good performance - particularly important as the temperature at Ron's home town when this was written was 42 deg Celsius or deg F. Another side affect of the repair is that the air conditioning condensor fans in front of the radiator are working once.
The pictures below show a heat-affected relay. When Ron pulled the yellow cover off the relay, he found that the plastic base had melted sufficiently for the internal relay contact to move so that even though the relay still operated, it no longer completed the circuit.
Once the relay pins have overheated, they will only get worse. Clogged pollen filters are commonly blamed for this RL7 problem, but that makes Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part sense as it would reduce the load on the blower motors. Also Thomas Dirksen has astutely observed that if the pollen filter hypothesis was correct, both left and right blower motors would be Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part affected, ie RL7 and RL6.
However nearly all problems seem to be with the left one RL7. In Thomas's case the cause was a loose wire on the motor itself; this would be well worth checking on to avoid a repetition of the problem. Random Cranking Simon Goode reports on some other symptoms that could mean possible fuse box failure. After putting Honda Civic Mk8 2005-2016 Bosch S3 Battery 70Ah Electrical System Replace Part a new battery when I got the car, I parked it at home and then the next morning I awoke to hear the starter motor cranking over!
It went for about 5 secs, then off, Fiat Croma 154 1985-1996 Vetech Battery 70Ah Electrical System Replacement Part on again for a couple of seconds.
Very alarmed, I disconnected the battery. I took the car to the mechanic that day and it was Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part up to look for any codes. Only climate control codes came up - but that's another story! So I decided to take the car home again and to look into it. I left it parked at home for 2 more days and had no cranking at strange times - maybe the computer just needed resetting?
But then the next morning at about the same time, it did it. After testing the voltage at the relay coil I found it to be about 9 volts and when I moved my hand and bumped another relay it dropped to 0 volts. So after reading your fuse box repair page I did just. I removed the fusebox to find lots of corrosion and one of the blower motor relays Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part. I cut all the Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part to open up the PCB and clean it and repair the burnt track.
I then desoldered the links and replaced them all with Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part copper wire. I put it all back together and it's been good for 2 weeks now! The first two times the engine stalled and a "Gearbox Fault" message appeared on the message center.
This message means power supply to teh gearbox is low. The third time the engine did not stall but the fault message appeared. The first two times the power returned and the "Gearbox Fault" message cleared.
Walter also noticed that when the turn signal lights were blinking the background light on the HEVAC readout panel would dim or flicker. Tellingly, there was also an odor of an electrical short in the engine compartment fuse box, even though all the fuses were good. Lucas struck with a sudden, complete and permanent power failure. Because of the brake-transmission interlock switch, he could not even shift the transmission into neutral Triumph Toledo 1970-1977 Banner Starting Bull 48Ah Battery Electrical Part roll the truck on to a flatbed tow truck.
The tow truck driver was clever enough to crawl under and disconnected the shifter Ford Granada Ggcl Ggnl Ggtl Ggfl Gnu Gu Mk3 1972-1994 Vetech Battery 63Ah he could manually shift the transmission into neutral. Upon inspection of the Engine Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part Fuse Box, there was now an extremely strong odor of an electrical short.
The problem was quickly. The Positive power connection post was completely burned off where it meets the fuse box board! Symptoms that Emulate BeCM Failure Problems in the engine compartment fusebox can simulate BeCM issues, like the random cranking above, and other starting problems that look like the engine is disabled by the alarm. Brian Schauf of Dealer Direct Auto worked on a HSE that was stopped and idling when the vehicle just died and would not turn over at all.
Power seemed to be on and everything like the windows and such worked fine. On turning the key there were no error messages although the message center said none of the windows, lift gate or sunroof were set. The Engine light comes on and goes off before I try to start it.
I have tried the generic EKA procedure with no avail. When turning the lock, the side lights will blink so I Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part it is recognizing the input although the lock seems to be a little loose.
We have tried unhooking battery and hooking back up with key in 2 position as. Fuses and relays seem to be fine. We have replaced the remote batteries and made sure the vehicle battery is fully charged as.
When we turn the key, there is a Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part noise from the controller under the passenger side seat and that is about it.
I feel it is in the alarm system but am having absolutely no luck! We found all kinds of solder joints that needed repairs and once we repaired them the Rangie started up and runs excellent. I was very grateful that it was Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part the BECM! 096R Titanium Car Battery 12V 70Ah 640A options are either replacement or repair.
If you choose repair, see Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part dismantling and repair section. If you choose replacement with a new one, it is an easy operation. The plugs underneath simply unclip.
You have to depress the locking tab then pull them. However, there are a couple of things would should do before disconnecting the battery. Make sure the car keys are in your pocket, not the car. I also leave a window open - just in case. Make sure you have the radio code. The fusebox underwent several minor design changes over the life of the 4.
There are yet more variants of the fuseboxes Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part the later diesels. It is not completely clear whether the later part nos. It would also be interesting to know if any cars with the later fusebox have had the Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part. Regarding the relays, there is a difference between the yellow AMR no longer available; Ron tried to buy one recently and it had been replaced by a new part number YWBL which are supposed to be yellow but the one I received was a black one and the green relays AMR now YVB The green relays are change-over relays and have 5 pins, the yellow ones have only 4 pins and are a make-set normally open.
Remove the fusebox cover and undo the nut holding the battery lead onto the stud see Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part. Remove the three bolts holding the fusebox in place Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part carefully turn it over to access the connectors underneath.
Depress the protruding clip on the connectors and gently work them off the box. Note Fits Nissan Patrol K160 K260 W160 1979-1990 Vetech Battery 60Ah Electrical Part pix are for an early fuse box.
Later ones changed but Ron is unsure of the changes made to the fuse box. Unbolt the three BECM Rover 600 Rh 1993-1999 Banner Power Bull 62Ah Battery Electrical Replace Part cables from the bottom of the fuse box, noting their colours and to which stud they are attached. The nuts see arrows are captive on the power leads so you won't lose .