TCU

Technical questions and answers about the Mazda Bongo

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Powellct
Bongonaut
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Joined: Wed Jan 13, 2021 10:31 pm
Location: South Somerset

TCU

Post by Powellct » Thu Feb 26, 2026 9:46 pm

To see attached from the guy working on my 02 V6 - I was under the impression there was only one ECU? Is there a separate transmission control unit?
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g8dhe
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Joined: Sun Apr 13, 2008 10:06 pm
Location: Worthing, West Sussex.

Re: TCU

Post by g8dhe » Thu Feb 26, 2026 11:03 pm

It depends on the age, early machines had separate PCM and TCM in separate boxes, later versions moved to having them on one board in a single box.
I would imagine for an 02 vehicle it would all be in a the same box up under the passenger footwell.
Geoff
2001 Aero V6, AFT, full side conversion.
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