TL AWD V6-3.7L (2010)
45. 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
-
ECM/PCM connector B (49P)
-
Each injector 2P connector
-
CMP sensor 3P connector
-
CKP sensor 3P connector
-
MAF sensor/IAT sensor 5P 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 See: Testing and Inspection/Programming and Relearning/ECM/PCM Update, or substitute a known-good ECM/PCM See: Testing
and Inspection/Initial Inspection and Diagnostic Overview, then recheck. If the symptom/indication goes away and the ECM/PCM was updated,
troubleshooting is complete. If the symptom/indication goes away and the ECM/PCM was substituted, replace the original ECM/PCM See: Engine
Control Module/Service and Repair. Also replace the No. 17 FI MAIN (15 A)fuse.
NO -
Go to step 46.
46. Disconnect the connectors from these components:
-
PGM-FI main relay 2
-
PCM connector B (49P)
-
Injectors
-
CMP sensor
-
CKP sensor
-
MAF sensor/IAT sensor
-
Electronic throttle control system (ETCS) control relay
47. Check for continuity between PGM-FI main relay 1 4P connector terminal No. 2 and body ground.
