MDX V6-3471cc 3.5L (2002)
14. Measure voltage between PCM connector terminals A26 and B20.
Is there battery voltage?
YES - Replace the PSP switch.
NO - Go to step 15.
15. Turn the ignition switch OFF.
16. Disconnect PCM connector A (32P).
17. Check for continuity between body ground and PCM connector terminal A26.
Is there continuity?
YES - Repair short in the wire between the PCM (A26) and the PSP switch.
NO - Substitute a known-good PCM and recheck. If voltage is normal, replace the original PCM.