S2000 L4-1997cc 2.0L DOHC (VTEC) MFI (2001)
Dimmer Switch: Testing and Inspection
Controller Input Test
1. Remove the gauge assembly.
2. Inspect the gauge assembly connector B (12P) terminals to be sure they are all making good contact.
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If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
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If the terminals look OK, go to step 3.
3. Reconnect the connectors to the gauge assembly.
4. Back probe the connector and make these input tests.
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If any test indicates a problem, find and correct the cause, then recheck the system.
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If all the input tests prove OK, the controller switch board or the main printed circuit board in the gauge assembly must be faulty; replace it.