DTC Troubleshooting

WARNING: This page is about a different variant/trim than selected.

DTC TROUBLESHOOTING CHART

Step	Action	YES	NO
1	Was "A/T System Check" performed?	Go to Step 2.	Go to A/T SYSTEM CHECK .
2	Is there DTC related to engine coolant temperature sensor (P0116 / P0117 / P0118 or P0125)?	Go to DTC P0116: ENGINE COOLANT TEMPERATURE CIRCUIT RANGE / PERFORMANCE, DTC P0117: ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT, DTC P0118: ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT OR DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL .	Go to Step 3.
3	Check engine coolant temperature signal circuit for IG short Turn ignition switch OFF. Disconnect TCM and ECM connectors from TCM and ECM. Check proper connection to TCM at terminal "G07-7" and to ECM at terminal "G04-20". If OK, turn ignition switch ON and measure voltage between terminal "G07-7" of disconnected harness side TCM connector and ground. Is it 10 - 14 V?	"GRY/BLK" circuit shorted to power circuit.	Go to Step 4.
4	Check engine coolant temperature signal circuit for open Turn ignition switch OFF. Check continuity between terminal "G07-7" of disconnected harness side TCM connector and terminal "G04-20" of disconnected harness side ECM connector. Is continuity indicated?	Go to Step 5.	"GRY/BLK" circuit open.
5	Check engine coolant temperature signal circuit for ground short Check continuity between terminal "G07-7" of disconnected harness side TCM connector and ground. Is continuity indicated?	"GRY/BLK" circuit shorted to ground.	Intermittent trouble or faulty TCM or ECM. Check for intermittent referring to INTERMITTENT AND POOR CONNECTION INSPECTION . If OK, substitute a known-good TCM or ECM and recheck.