2019-2021 ALTIMA AND 2021 ROGUE;
AC INOPERATIVE WITH DTC B20C8-14 STORED
IF YOU CONFIRM
The AC compressor is not engaging when the AC is in the ON position as indicated by the
yellow illumination on the AC button,
And
DTC B20C8-14 ECV (ELECTRICAL CONTROL VALVE) is stored in the IPDM.
SERVICE PROCEDURE
1. Clear the DTC, and follow the DTC CONFIRMATION PROCEDURE in the ESM.
 If DTC B20C8-14 is past, AC compressor operation is inhibited until the DTC is
cleared.
 If DTC B20C8-14 returns after being cleared (either Current or Past status),
follow the ESM diagnosis procedure.
 For models with Automatic Air Conditioning, go to section: VENTILATION,
HEATER & AIR CONDITIONER > HEATER & AIR CONDITIONING
CONTROL SYSTEM > AUTOMATIC AIR CONDITIONING > DTC/CIRCUIT
DIAGNOSIS > B20C8-14 ECV (ELECTRICAL CONTROL VALVE).
 For models with Manual Air Conditioning, go to section: VENTILATION,
HEATER & AIR CONDITIONER > HEATER & AIR CONDITIONING
CONTROL SYSTEM > MANUAL AIR CONDITIONING > DTC/CIRCUIT
DIAGNOSIS > B20C8-14 ECV (ELECTRICAL CONTROL VALVE).
