ECT troubleshooting: ECT sensor 2 circuit low voltage, L13Z1 engine, R18A2 engine, K20Z4 engine, ECT sensor 2 circuit high voltage, L13Z1 engine, R18A2 engine, K20Z4 engine

NOTE: It is normal for the blower to run slowly until the engine coolant temperature begins to rise. If the blower continues to run slowly for an abnormal length of time, continue to troubleshoot the problem.