PGM-FI System

MIL Circuit Troubleshooting (cont'd)


  1. Connect ECM/PCM connector terminal E31 and body ground with a jumper wire.


Wire side of female terminals

  1. Turn the ignition switch ON (II).

Is the MIL on?

YES - Substitute a known-good ECM/PCM and recheck, refer to the '01 Civic Shop Manual on this CD (see page 11-6). If symptom/indication goes away, replace the original ECM/PCM.

NO - Check for an open in the wire between the ECM/PCM (E31) and the gauge assembly. Also check for a blown MIL bulb. If the wires and the bulb are OK, replace the gauge assembly.

  1. Turn the ignition switch OFF.
  1. Inspect the No. 6 ECU (ECM/PCM) (15A) fuse in the under-hood fuse/relay box.

Is the fuse OK?

YES - Go to step 18.

NO - Go to step 12.

  1. Remove the blown No. 6 ECU (ECM/PCM) (15A) fuse in the under-dash fuse/relay box.
  2. Remove the PGM-FI main relay 1 (A).

LHD model:

RHD model: