Civic L4-1.3L Hybrid (2008)
Ignition Relay: Testing and Inspection
Ignition Coil Relay Circuit
Ignition Coil Relay Circuit Troubleshooting
1. Check the No. 18 (20 A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES - Go to step 2.
NO - Replace the fuse. If the fuse continues to blow, locate and repair the short in the circuit between the under-hood fuse/relay box and the
ignition coils.
2. Install the No. 18 (20 A) fuse in the under-hood fuse/relay box.
3. Remove the ignition coil relay from the under-hood fuse/relay box, and test it.
Is the relay OK?
YES - Go to step 4.
NO - Replace the ignition coil relay.
4. Measure the voltage between ignition coil relay 4P socket terminal No. 2 and body ground, then terminal No. 4 and body ground.
Is there battery voltage?
YES - Go to step 5.
NO - Replace the under-hood fuse/relay box.
5. Check for continuity between each ignition coil relay 4P socket terminal No. 1 and ignition coil 3P connector terminal No. 3.
Is there continuity?
YES - Go to step 6.
NO - Repair open in the wire between ignition coil relay 4P socket terminal No. 1 and ignition coil 3P connector terminal No. 3.
