PGM-FI System

MIL Circuit Troubleshooting (cont'd)

11-66  

  1. Check for continuity between ECM/PCM connector terminal E23 and DLC terminal No. 7.

DATA LINK CONNECTOR (DLC)

Wire side of female terminals

Is there continuity?

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 - Repair open in the wire between the DLC and the ECM/PCM (E23). After repairing it, check the DTC with the scan tool/Honda PGM Tester and go to the DTC Troubleshooting Index.

  1. Check the scan tool/Honda PGM Tester for DTCs.

Are any DTCs indicated?

YES - Go to the DTC Troubleshooting Index.

NO - Go to step 71.

  1. Turn the ignition switch OFF.
  2. Turn the ignition switch ON (II).

  1. Measure voltage between ECM/PCM connector terminal E29 and body ground.

ECM/PCM CONNECTOR E (31P)

Wire side of female terminals

Is there about 5 V (or battery voltage)?

YES - Go to step 77.

NO - Go to step 74.

  1. Turn the ignition switch OFF.
  2. Disconnect ECM/PCM connector E (31P).