3.
Does warning lamp remain On?
YES
a.
Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and then go to "Verification of vehicle Repair" procedure.
b.
Substitute with a known-good TCM and check for proper operation. If problem is corrected, replace TCM and then go to "Verification of Vehicle Repair" procedure. If NG, replace HECU and then go to "Verification of Vehicle Repair" procedure.
NO
a.
Fault is intermittent caused by poor connection in CAN line, Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and then go to "Verification of vehicle Repair" procedure.
