Control module (ECM/PCM/BCM) failure on the 2002 Volkswagen Jetta
1 fire 1 of the 10 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
When control module (ecm/pcm/bcm) failure gets reported
Owners of the 2002 Volkswagen Jetta report control module (ECM/PCM/BCM) failure at a median of 90,000 miles. A quarter of the reports come in before 35,000 miles and a quarter after 90,000 miles, from 9 reports that carried an odometer reading.
A part like this is normally expected to survive 92,000 miles. It is the 22nd most-reported problem on this model year.
The mileage distribution
The reported range runs from 20,000 miles at the tenth percentile to 140,000 miles at the ninetieth, a spread of 121,564 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
33% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 17,636 miles | 35,899 miles | 90,700 miles | 90,700 miles | 139,200 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Of these reports, 1 a fire is mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $700–$3,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 16 model years of this car. It shows up earliest on the 2019, at a median of 5,000 miles, and latest on the 2000 at 115,000 miles.
By volume the 2009 carries the most reports, with 61; the 2002 has 10. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
My 2002 vw jetta has been sitting at the dealership for almost 30 days waiting for an ABS control module. No one at the dealership or vw of america can tell me when the part will be shipped or if it has even been shipped yet. I call every day to find out status, and still no one at this huge corporation has an answer. *la
On october 19, 2006, while driving my 2002 volkswagen jetta, the ABS warning lights came on the dash. According to the owner's manual this indicated a serious problem that could effect the brakes on the car. On october 26, 2006 I took the car to fischer's foreign cars, inc. For repair. They told me the ABS control module was defective and needed to be replaced. The cost of the repair was $702.93 and they said there was a recall for this problem (they gave me a copy of the recall letter from volkswagen of america inc(voa) dated march 12, 2002) and that I should file a claim with voa for reimbursement. I purchased the car new on february 16, 2002, and never received a recall notice for this problem. On november 4, 2006, I sent a registered letter to voa requesting reimbursement for the repair costs. I also enclosed copies of the recall letter and the repair bill. About november 11, 2006, I received a telephone call from a woman at voa and she said that the recall letter did not cover my car and that because the factory warranty had expired in february 2006, that voa would not honor my request for reimbursement. She said the decision…
Tl*-the contact took the 2002 volkswagen gls wagon 1.8 turbo with failure mileage: 6,261 to the dealership due to problems dealing with the air bag indicator. The technician at the dealership stated that there was no particular problem. However, they have continued to diagnose the contacts vehicle. He paid a great deal of money for the service. The dealership technician stated that there may be an airbag deployment problem, but the technician was not sure. The contact stated that ever since november 9, 2001 the airbag indicator remained illuminated on his dashboard. He reported this problem to volkswagen numerous times, but they have not offered him any explanation for the problem. The current mileage of the contacts vehicle was 82,500 miles.*ak
Also reported on the 2002 Volkswagen Jetta
Other body or interior problem
Other electrical problem
Other powertrain problem
Other engine problem
Misfire or rough idle
Tail light, brake light or signal failure
How far this goes
Complaints are voluntary, so 10 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does control module (ecm/pcm/bcm) failure happen on the 2002 Volkswagen Jetta?
Across 9 owner reports that included an odometer reading, half were filed by 90,000 miles. A quarter were filed before 35,000 miles and a quarter after 90,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is control module (ecm/pcm/bcm) failure on the 2002 Volkswagen Jetta?
10 reports have been filed with NHTSA, about 0.2 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed