DTC C1146 Infiniti

Description

The DTC sets when the A C-ECU cannot receive the signal of temperature adjustment knob. Current trouble: The A C-ECU, the A C control panel, or connector(s) or wiring between the two may be defective. Past trouble: If DTC B1018 is stored as a past trouble, carry out diagnosis with particular emphasis on wiring and connector(s) between the A C-ECU and the A C control panel. If the connectors and wiring are normal, and obviously the ECU is the cause of the trouble, replace the ECU. If in doubt, do not replace the ECU.