MDX V6-3471cc 3.5L (2002)
21. Check for continuity between body ground and PCM connector terminals B20 and B22 individually.
Is there continuity between ground and each terminal?
YES - Go to step 22.
NO - Repair open in the wire(s) between grounds G101, G102 and PCM connector terminals B20 or B22, or repair poor ground (G101, G102).
22. Connect the battery negative terminal.
23. Turn the ignition switch ON (II).
24. Measure the voltage between PCM connector terminals B1 and B22, and between B9 and B20.
Is there battery voltage?
YES - Go to step 25.
NO - Repair open or short in the wire between PCM connector terminals B1 or B9 and the PGM-FI main relay.
25. Turn the ignition switch OFF.
26. Disconnect the battery negative terminal.
27. Reconnect PCM connector B (25P).
28. Reconnect the battery negative terminal.
29. Connect a digital multimeter between PCM connector terminals A14 and B20 or B22.
30. Turn the ignition switch ON [II]
Is there voltage for at least 2 seconds?
YES - Check for open in the wire between PCM connector terminal A14 and the gauge assembly. If the wire is OK, check for a faulty D5
indicator bulb or a faulty printed circuit board in the gauge assembly.
NO - Go to step 31.
31. Turn the ignition switch OFF.
32. Disconnect the battery negative terminal.
33. Disconnect PCM connector A (32P).
