Civic L4-1.3L Hybrid (2008)
Is there continuity?
YES - Test PGM-FI main relay 1. If the relay is OK, update the PCM if it does not have the latest software, or substitute a known-good PCM, then
recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.
NO - Repair open in the wire between the PCM (A6) and PGM-FI main relay 1
69. Turn the ignition switch OFF.
70. Remove PGM-FI main relay 1 (C) from the under-hood fuse/relay box.
71. Measure voltage between PGM-FI main relay 1 4P connector terminal No. 1 and body ground.
Is there battery voltage?
YES - Go to step 72.
NO - Replace the under-hood fuse/relay box.
72. Check for continuity between PGM-FI main relay 1 4P connector terminal No. 2 and PCM connector terminal A8 and A43 individually.
