MDX V6-3.7L (2007)
Ignition Relay: Testing and Inspection
Ignition Coil Relay Circuit Troubleshooting
Ignition Coil Relay Circuit Troubleshooting
1. Check the No. 8 (15 A) fuse and No. 9 (15 A) fuse in the under-hood fuse/relay box.
Are the fuses 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. Remove the relay control module from the under-hood fuse/relay box, and test it.
Is the relay OK?
YES - Go to step 3.
NO - Replace the relay control module in the under-hood fuse/relay box.
3. Measure the voltage between the relay control module connector C terminal No. 2 and body ground.
Is there battery voltage?
YES - Go to step 4.
NO - Repair open in the wire between relay control module connector C terminal No. 2 and the main under-hood fuse box.
4. Check for continuity between the relay control module connector H terminal No. 6 and No. 1 ignition coil 3P connector terminal No. 3.
Is there continuity?
YES - Go to step 5.
NO - Repair open in the wire between the relay control module connector H terminal No. 6 and ignition coil 3P connector terminal No. 3.
