MDX V6-3.7L (2007)
48. Check for continuity between PCM connector terminal B42 and body ground.
Is there continuity?
YES - Go to step 49.
NO - Replace the No. 19 FUEL PUMP (20 A) fuse in the under-hood fuse/relay box, and update the PCM if it does not have the latest software, or
substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.
49. Remove PGM-FI main relay 2 (G) from the under-dash fuse/relay box.
50. Check for continuity between PCM connector terminal B42 and body ground.
Is there continuity?
YES - Repair short in the wire between the No. 19 FUEL PUMP (20 A) fuse and the PCM (B42), between the No. 19 FUEL PUMP (20 A) fuse
and PGM-FI main relay 2, or between the No. 19 FUEL PUMP (20 A) fuse and the immobilizer control unit. Also replace the No. 19 FUEL
PUMP (20 A) fuse in the under-dash fuse/relay box.
NO - Go to step 51.
51. Jump the SCS line with the HDS.
52. Disconnect PCM connectors A (49P) and B (49P).
53. Turn the ignition switch ON (II).
