MDX, 3.2CL & 3.2TL

Remove ignition coil cover. Disconnect 6 ignition coil 3-pin connectors. Turn ignition on. Measure voltage between ground and each ignition coil connector terminal No. 3 (Black/Yellow wire). See WIRING DIAGRAMS article. If battery voltage is present, go to next step. If battery voltage is not present, repair open circuit in Black/Yellow wire between ignition coil and No. 11 (15-amp) fuse located in underdash fuse/relay box.
Turn ignition off. Measure continuity between ignition coil 3-pin connector terminal No. 2 (Black wire) and ground. If continuity is present, go to next step. If continuity is present, repair open circuit in Black wire between ignition coil and ground.

Disconnect PCM 31-pin connector. Measure continuity between PCM 31-pin connector terminals and ground. See PCM 31-PIN CONNECTOR TERMINAL IDENTIFICATION (MDX, 3.2CL & 3.2TL) table. If continuity is present between designated PCM connector terminal and ground, repair short circuit in appropriate wire between ignition coil and PCM. If continuity is not present, go to next step.

PCM 31-PIN CONNECTOR TERMINAL IDENTIFICATION (MDX, 3.2CL & 3.2TL)

Connector Terminal	Wire Color
No. 3	White/Blue
No. 4	Yellow/Green
No. 12	Black/Red
No. 13	Brown
No. 14	Blue/Red
No. 23	Brown/White

Reconnect PCM 31-pin connector. Turn ignition switch to START position. Measure voltage between ignition coil 3-pin connectors terminal No. 1 and ground. See IGNITION COIL 3-PIN CONNECTOR TERMINAL NO. 1 IDENTIFICATION (MDX, 3.2CL & 3.2TL) table. If about .5 volt is present, replace ignition coil. If about .5 volt is not present, repair open circuit in appropriate wire between ignition coil connector terminal No. 1 and PCM.

IGNITION COIL 3-PIN CONNECTOR TERMINAL NO. 1 IDENTIFICATION (MDX, 3.2CL & 3.2TL)

Ignition Coil	Wire Color
No. 1	Yellow/Green
No. 2	Blue/Red
No. 3	White/Blue
No. 4	Brown
No. 5	Black/Red
No. 6	Brown/White