The problem with a timely repair of your car may be the time needed to wait for the replacement
computer to arrive - these items are never available locally, and must be ordered, whether it
is a new unit from the dealership, or a rebuilt computer (available only for popular domestic cars).
* many car computers (also known as ECC (Engine Control Computer) or PCC (Powertrain
Control Computer) in the maintenance manuals) are located behind the glove box.
* computer can be located inside the right front kick panel (example: Mazda)
* computer can be located under driver's seat (example: 1988 Honda Accord)
* Other times they are located under the passenger seat.
* Newer computers are designed to dissipate heat more quickly. Some of these are installed in the engine compartment.
* To be safe, pull the computer fuse before unhooking its connectors.
To remove the unit:
WARNING
Disconnect the negative battery cable. Electronic Control Computer (ECC) removal procedures vary according to vehicle make and model. Consult your service manual for the procedure.
* first, use proper anti-static techniques for handling electronic PC boards - an anti-static wrist
strap clipped onto the car's frame ground is a wise precaution.
* remove glove box, or kick panel to access ECC.
* If necessary, remove any plates or covers from ECC.
* Disconnect the wiring harness.
* Unbolt the module from its mounting.
* installation is the reverse of removal, while, of course, maintaining static control.
Project difficulty: any handy person could do it, but static arrest techniques help insure a positive
result.
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