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Home >> Acura >> 2003 >> MDX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Performance System Self-Diagnostics >> Self-Diagnostic System >> Notes
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Self-Diagnostic System: Notes

CAUTION:

The PCM overwrites data and monitors the EVAP system for up to 60 minutes after the ignition is turned off. Jumping the SCS line after turning ignition off cancels this function. Disconnecting the PCM during this function, without jumping the SCS line first, can damage the PCM. When removing/installing PCM or disconnecting PCM connectors, steps  1 - 3 must be followed to protect the powertrain control module (PCM) from damage, or wait at least 60 minutes before disconnecting. See the following:

  1. With ignition on, connect the Honda PGM Tester or the HDS to the data link connector (DLC) and go into any of the live data screens.
  2. Turn ignition off.
  3. Turn the Honda PGM Tester off or close the HDS and then back on. Go to the SCS mode and follow the screens to ground the 16-pin DLC.
WARNING: During self-diagnostics, only check ECU (PCM) fuse specified. No. 46 ACGS (PCM) fuse (15-amp) located in underhood fuse/relay box.
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