( TL19E20A20326919461FAAT00 )

DLC Circuit Troubleshooting

1. While disconnecting each of the parts or connectors below, one at a time, check for continuity between PGM-FI main relay 1 4P connector terminal No. 2 and body ground.
   - PGM-FI main relay 2 (FUEL PUMP)
   - PGM-FI subrelay
   - ECM/PCM connector A (49P)
   - Each injector 2P connector
   - MAF/IAT sensor 5P connector
   - Camshaft position (CMP) sensor 3P connector
   - Crankshaft position (CKP) sensor 3P connector
   - Electronic throttle control system (ETCS) control relay

Does continuity go away when one of the above parts or connectors is disconnected?

YES | - | Replace the part that made the short to body ground go away when disconnected. If the part is the ECM/PCM, update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM. Also replace the No. 17 FI MAIN (15 A) fuse.■
NO | - | Go to Step 42 .

1. Disconnect these parts or connectors:
   - PGM-FI main relay 2 (FUEL PUMP)
   - PGM-FI subrelay
   - ECM/PCM connector A (49P)
   - Injectors
   - MAF/IAT sensor 5P connector
   - Camshaft position (CMP) sensor
   - Crankshaft position (CKP) sensor
   - Electronic throttle control system (ETCS) control relay