Climate Control System DTCS

POWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Perform Test
P0537	A/C evaporator temperature (ACET) circuit low input	REFER to INTRODUCTION - GASOLINE .
P0538	A/C evaporator temperature (ACET) circuit high input	REFER to INTRODUCTION - GASOLINE .
P1460	WOT A/C cutout internal driver malfunction	REFER to INTRODUCTION - GASOLINE .
P1469	Low A/C cycling period	REFER to INTRODUCTION - GASOLINE .
P1474	Low speed fan internal driver failure	REFER to INTRODUCTION - GASOLINE .
P1479	High speed fan internal driver failure	REFER to INTRODUCTION - GASOLINE .
P1464	A/C demand out of self-test range	REFER to INTRODUCTION - GASOLINE .

REAR REDUNDANT CONTROL MODULE (RRCM) DIAGNOSTIC TROUBLE CODE (DTC) LIST - LATE BUILD

DTC	Description	Perform Test
B113D	Rear climate control switch stuck	INSTALL a new rear climate control switch. TEST the system for normal operation.
B113E	Rear climate control switch circuit short to ground	GO to PINPOINT TEST P .
B113F	Rear climate control switch circuit short to battery	GO to PINPOINT TEST Q .
U1178	SCP (J1850) Invalid or missing data for climate control	REFER to MODULE COMMUNICATIONS NETWORK to diagnose a network concern.

DUAL AUTOMATIC TEMPERATURE CONTROL (DATC) MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Perform Test
B2266	Driver side blend door failure or short	GO to PINPOINT TEST A .
B2267	Passenger side blend door failure or short	GO to PINPOINT TEST A .
B1251	In-vehicle temperature sensor open circuit	GO to PINPOINT TEST B .
B1253	In-vehicle temperature sensor short to ground	GO to PINPOINT TEST B .
B1255	Ambient temperature sensor open circuit	GO to PINPOINT TEST C .
B1257	Ambient temperature sensor short to ground	GO to PINPOINT TEST C .
B1259	A/C solar radiation sensor open circuit	GO to PINPOINT TEST D .
B1261	A/C solar radiation sensor circuit short to ground	GO to PINPOINT TEST D .
B1242	Recirc door short/failure	GO to PINPOINT TEST E .
B1263	Panel/defrost door short/failure	GO to PINPOINT TEST F .
B1264	Floor door short/failure	GO to PINPOINT TEST F .
B2268	Steering wheel auxiliary control switch open circuit	If vehicle is not equipped with steering wheel control switches, ignore this code and continue diagnosis. If vehicle is equipped with steering wheel control switches, GO to PINPOINT TEST G .
B2269	Steering wheel auxiliary control switch circuit short to ground	GO to PINPOINT TEST G .
U1040	SCP invalid or missing data for function read vehicle speed	If DTCs are present in the instrument cluster, diagnose those codes first. CLEAR the DTCs. If the EATC DTC returns, INSTALL a new EATC module. REFER to AIR DISTRIBUTION AND FILTERING . If no DTCs are present in the instrument cluster, CLEAR the DTCs. If the EATC DTC returns, INSTALL a new EATC module. REFER to AIR DISTRIBUTION AND FILTERING . TEST the system for normal operation.
U1073	SCP invalid or missing data for engine coolant	If DTCs are present in the instrument cluster, diagnose those codes first. CLEAR the DTCs. If the EATC DTC returns, INSTALL a new EATC module. REFER to AIR DISTRIBUTION AND FILTERING . TEST the system for normal operation. If no DTCs are present in the instrument cluster, CLEAR the DTCs. If the EATC DTC returns, INSTALL a new EATC module. REFER to AIR DISTRIBUTION AND FILTERING . TEST the system for normal operation.
U1112	SCP invalid or missing data for interior lamps	GO to INSPECTION AND VERIFICATION to continue diagnosis.
B1342	Module faulted	Button held too long may set DTC. Attempt to clean buttons. If code returns, INSTALL a new EATC module. REFER to CONTROL COMPONENTS .
B1200	Stuck button	INSTALL a new EATC module. REFER to CONTROL COMPONENTS .
B2477	Module not configured - LHD only	CONFIGURE the EATC module. REFER to MODULE CONFIGURATION .
B1676	Voltage out of range	GO to PINPOINT TEST H .