Becker · Harman Becker · Logic 7 · Alpine · Bose

Head unit and PCM repair

Bench-level repair for factory head units and Porsche PCM systems, diagnosed and fixed on our own blue workbench upstairs in Saddle Brook, NJ.

Chapter 01

What actually fails

The complaint we see most with Porsche PCM units is a touch screen cracked in the dash from years of use, or a screen that has simply stopped responding while the rest of the unit still powers up. PCM 3.1 systems bring a second, quieter failure: the internal hard drive wears out long before the electronics around it do, and a slow, glitchy or half-working navigation screen is often that drive failing, not the display itself.

CD mechanisms jam, skip or refuse to load a disc, and no-power faults leave a head unit doing nothing at all when the key turns. That range of failure shows up across Becker and Harman Becker units, straight Harman systems, Logic 7, Alpine and Bose, the brands that cover most of what comes across our bench in a given week.

A Porsche PCM head unit with GPS antenna and a Harman/Becker Original Replacement Part label, on the shop's blue workbench

A Porsche PCM head unit with GPS antenna and a Harman/Becker Original Replacement Part label, on the shop's blue workbench

How we work on it

Every unit gets diagnosed on the same blue workbench upstairs at our Saddle Brook shop, the bench you can see in the photo on this page. We trace a fault to the failing part on the bench, and where a Harman/Becker original replacement part is available, that's what goes back in rather than a generic substitute.

Two jobs come off that bench routinely alongside straight repair. A PCM 3.1 with a failing hard drive gets it swapped for a solid-state drive, which removes the wear point rather than just patching around it, and PCM 3.0 and 3.1 units can have Apple CarPlay and a reverse camera added in the same visit.

A repair form goes in the box with every incoming unit. Walk-ins are welcome at the shop; call 201-773-0976 first if you'd rather ship it in, and we'll tell you what to include.

Chapter 03

What you get back

Every repair carries a 1-year limited warranty, and extended warranties are available if you want coverage past that first year. Most jobs turn around in 7 to 10 business days from the day the unit arrives, walked in or shipped.

If the fault turns out to live in a factory amplifier rather than the head unit, that's a separate repair we handle on its own, and a Bluetooth or AUX retrofit is a different job again, done behind the original faceplate rather than inside it.

1-year limited warranty on every head unit and PCM repair, extended warranties available, 7 to 10 business day turnaround, walk-in or ship-in to Saddle Brook, NJ.