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  1. Climate Control Unit (CCU) - Repair

    Failure of the Climate Control Unit (CCU) is a common fault, affecting nearly any NSX. In almost any case, capacitor replacement and track repair will fix all issues. Depending on the state of the PCB, further damage to other components can happen, though.

    The following error cases and ways of repairing have been identified so far. These faults can be caused by major acid leakage affecting nearby transistors.

    Click image for larger version. 

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    Updated 22-05-2022 at 04:07 PM by Heineken

    Technical Information
  2. Gauge Cluster - Tester

    The NSX Gauge Cluster provides a large number of functions and displays, resulting in roughly 60 pins across two green connectors. Testing all of them manually is a error-prone task, requires special equipment and takes a lot of time. To speed things up, it helps to have a tester that provides all of these functions in a compact way and utilizing the original connectors.

    A simple user interface. Usage of the original connectors. Adaptable for multiple ...

    Updated 05-03-2022 at 07:51 PM by Heineken

    Member's Blogs , Technical Information
  3. Gauge Cluster - Capacitor Replacement

    The Gauge Cluster suffers from ageing capacitors as many ECUs in the NSX do. Leaking capacitors at the gauge cluster is a serious issue. Acid near the warning indicator circuit causes shorts and even potentially lead to a fire. Same as with the other capacitor issues, a replacement should be considered before the unit fails.

    First signs are a non-accurate speed indication or a permanently lit brake light warning even though bulbs and wiring are ...

    Updated 30-03-2022 at 03:35 PM by Heineken

    Member's Blogs , Technical Information
  4. Gauge Cluster - Bulb Replacement


    Around the 100.000 to 150.000 km range the first illumination and indicator bulbs in the Gauge Cluster start to fail. Replacing individual bulbs isn't economical considering the effort to get the cluster out of the car. Replacing all bulbs is the preferred route (except for AT vehicles - which will be explained below).

    Click image for larger version. 

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    JDM 1997 AT Cluster

    All bulbs can be replaced without disassembling the cluster, except ...

    Updated 06-11-2021 at 06:42 PM by Heineken

    Member's Blogs
  5. Gauge Cluster

    The NSX's Gauge Cluster is a good example for a nice and simple design - it features a symmetric layout with one large dial on each side, accompanied by two small dials. These main functionalities are realized:

    • Speed dial (country specific labeling and range)
    • Tachometer (model specific range)
    • Temperature, oil pressure and fuel gauge
    • Shift indicator (AT only)
    • ~30 indicator lights (some model and country specific)

    Variations and Build ...
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