DTC P0607: PCM Backup Circuit Malfunction — Pgm-Fi System — Testing & Diagnostics

DTC P0607: PCM Backup Circuit Malfunction Honda Pilot I

Reset the PCM (see «HOW TO RESET THE PCM»(ref-173995-S09390407622005041500000) ).
Turn the ignition switch OFF.
Turn the ignition switch ON (II). Is DTC P0607 indicated? YES -Substitute a known-good PCM and recheck (see «HOW TO SUBSTITUTE THE PCM FOR TESTING»(ref-173995-S22023424662005041500000) ). If the symptom/indication goes away, replace the original PCM. NO -Go to step 4.
Cycle the ignition switch OFF and ON (II) five times.
Check for a DTC or a Temporary DTC with the scan tool or the HDS. Is DTC P0607 indicated? YES -Inspect the No. 13 BACK UP (7.5A) fuse. If the fuse is OK, repair open in VBU wire between the driver's under-dash fuse/relay box and the PCM. NO -Intermittent failure, system is OK at this time. A low battery can cause this problem. Ask the customer if the engine had to be jump-started recently.

DTC P0607: PCM Backup Circuit Malfunction Honda Pilot I