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ECU reconditioning, ECU repair, ECU testing. New remanufactured & used ECU’s

Volvo ABS Pump/ECU module                               

Volvo ABS pump/Module failure
- 1996-1997 Volvo 850 with TRACS 2/4WD ABS system
- 1998-2001 Volvo C70, S70 and V70 with TRACS ABS system
- 2/4WD Volvo ABS system
- 1999 and newer Volvo S80 with ABS/STC system
ECU Type - ATE Teves
ECU location: Fitted to the back of the ABS pump (held on with four torx screws that are easily removed with a 4mm socket).
Price: £100 with two year warranty
Delivery: Next working day before 1pm                            

 

This is a very common failure on all Volvo ABS pumps built after 1995, causing the ABS light to come on along with the tracs light if fitted. When the fault codes are read there will usually be a fault code blaming the high pressure pump and/or a fault code blaming one or more wheel speed sensors. The fault is normally always the ABS module when these faults occur. We can rebuild your own ABS pump/module for £100 + postage, or we can supply replacement units from stock (ring for replacment prices as they vary depending on part numbers).

It is worth noting that the ABS module can be removed and the pump left in place thus alowing the vehicle to be driven with normal braking (no ABS).

Please call us on 01773 535638 9am-6pm mon-fri to order a replacement unit or for further advice.

VOLVOS CAN BE AS TROUBLESOME AS THE NEXT CAR WHEN IT COMES TO SORTING OUT FAULTS AND THE VOLVO WE HAD IN FOR SORTING OUT A PROBLEM WITH HESITATING NOW AND AGAIN WAS NO EXCEPTION. AS WITH MOST INTERMITTENT FAULTS ALL CHECKED OUT OK ON ROUTINE TUNING FAULT CHECKS BUT THE FAULT STILL REMAINED. IT WAS FOUND TO BE CAUSED IN THE END BY THE MANAGEMENT SYSTEMARGUING WITH ITSELF, BUT TO FIND THIS FAULT TOOK  A BIT MORE TIME THAN JUST AN ENGINE TUNE. TUNING SORTED OUT POOR GENERAL RUNNING PROBLEMS ON THE CAR, BUT DID NOT UNCOVER ANYTHING THAT COULD CAUSE THIS SORT OF FAULT. AFTER TUNING WE INSTALLED MONITORING EQUIPMENT BETWEEN THE ENGINE MANAGEMENT ECU (ELECTRONIC CONTROL UNIT) AND THE CAR'S WIRING PLUS A FUEL PRESSURE MONITORING INTO THE FUEL INJECTOR SUPPLY AND WENT DRIVE ABOUT FOR 10 MILES UNTIL THE FAULT OCCURRED. WE FOUND THAT THE OUTPUT FROM THE OXYGEN SENSOR IN THE EXHAUST WAS POOR - THIS TELLS THE ECU HOW MUCH OXYGEN IS IN THE EXHAUST. THE ECU THEN USES THIS INFORMATION TO ADJUST THE FUELLING, WHICH THE OXYGEN SENSOR THEN DETECTS THIS CHANGE AND RE-ADJUSTS THE FUELLING AGAIN. UNFORTUNATELY BETWEEN THEM THE TWO TWO SOMETIMES COULDN'T AGREE ON WHAT TO DO AND WHEN THEY SAT THERE ARGUING WITH EACH OTHER OVER WHAT EACH THOUGHT THE FUELLING SHOULD BE THE ENGINE HESITATED. A NEW OXYGEN SENSOR WAS FITTED, ANOTHER 10 MILE ROADTEST TO BE SURE THAT THE PROBLEM WAS CURED, AND A VOLVO BACK ON THE ROAD AT HARMONY WITH ITSELF ONCE MORE.

Hessitation, power loss. This type of problem can be one of the most time consuming faults to find because the problem often is only slight and the fault only shows up when the car is being driven under load.

One of the most commen causes of this is fouled or sticking injectors that can be reconditioned at less than tenth the price of a new set. For more information on injector servicing click here.

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Tel: 01773 535638
Opening times:
Monday - Friday
9:00am - 5:30pm
Saturdays
10:00am - 4:00PM