Pilot 4WD V6-3.5L (2008)
Ignition Relay: Testing and Inspection
Ignition Coil Relay Circuit
Ignition Coil Relay Circuit Troubleshooting
1. Check the No. 8 (15 A) fuse in the auxiliary under-hood fuse box.
Is the fuse OK?
YES - Reinstall the fuse, then go to step 2.
NO - Replace the fuse. If the fuse continues to blow, locate and repair the short in the circuit between the ignition coil relay and the ignition coils.
2. Remove the ignition coil relay from the relay block, and test it.
Is the relay OK?
YES - Go to step 3.
NO - Replace the ignition coil relay.
3. Measure the voltage between ignition coil relay 4P socket terminal No. 1 and body ground, then terminal No. 4 and body ground.
Is there battery voltage?
YES - Go to step 4.
NO - Repair open in the wire between ignition coil relay 4P socket terminal No. 1 and the auxiliary under-hood fuse box or terminal No. 4 and the
auxiliary fuse box.
4. Check for continuity between ignition coil relay 4P socket terminal No. 2 and the each ignition coil 3P connector terminal No. 3.
Is there continuity?
YES - Go to step 5.
NO - Repair open in the wire between ignition coil relay 4P socket terminal No. 2 and each ignition coil 3P connector terminal No. 3.
5. Check for continuity between each ignition coil 3P connector terminal No. 2 and body ground.