Dual Automatic Temperature Control (DATC) Module Diagnostic Trouble Code (DTC) Index

WARNING: This page is about a different car, the 2004 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

DUAL AUTOMATIC TEMPERATURE CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC	DATC Self-Test Faults	Description	Action to take
B2266	2266	Driver side blend door failure or short	Go To PINPOINT TEST A: DTC B2266 OR DTC B2267 - BLEND DOOR FAILURE OR SHORT .
B2267	2267	Passenger side blend door failure or short	Go To PINPOINT TEST A: DTC B2266 OR DTC B2267 - BLEND DOOR FAILURE OR SHORT .
B1251	1251	In-vehicle temperature sensor open circuit	Go To PINPOINT TEST B: DTC B1251 OR DTC B1253 - A/C IN-VEHICLE TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1253	1253	In-vehicle temperature sensor short to ground	Go To PINPOINT TEST B: DTC B1251 OR DTC B1253 - A/C IN-VEHICLE TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1255	1255	Ambient temperature sensor open circuit	Go To PINPOINT TEST C: DTC B1255 OR DTC B1257 - A/C AMBIENT TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1257	1257	Ambient temperature sensor short to ground	Go To PINPOINT TEST C: DTC B1255 OR DTC B1257 - A/C AMBIENT TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1259	1259	A/C solar radiation sensor open circuit	Go To PINPOINT TEST D: DTC B1259 OR DTC B1261 - SOLAR RADIATION SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1261	1261	A/C solar radiation sensor circuit short to ground	Go To PINPOINT TEST D: DTC B1259 OR DTC B1261 - SOLAR RADIATION SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1242	1242	Recirc door short/failure	Go To PINPOINT TEST E: DTC B1242- RECIRCULATION DOOR FAILURE .
B1263	1263	Panel/defrost door short/failure	Go To PINPOINT TEST F: DTC B1263 OR DTC B1264- PANEL/DEFROST OR FLOOR DOOR FAILURE .
B1264	1264	Floor door short/failure	Go To PINPOINT TEST F: DTC B1263 OR DTC B1264- PANEL/DEFROST OR FLOOR DOOR FAILURE .
B2268	2268	Steering wheel auxiliary control switch open circuit	Go To PINPOINT TEST G: DTC B2268 OR DTC B2269 - STEERING WHEEL AUXILIARY CONTROL SWITCH OPEN CIRCUIT OR SHORT TO GROUND .
B2269	2269	Steering wheel auxiliary control switch circuit short to ground	Go To PINPOINT TEST G: DTC B2268 OR DTC B2269 - STEERING WHEEL AUXILIARY CONTROL SWITCH OPEN CIRCUIT OR SHORT TO GROUND .
U1040	1040	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 & 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 & FILTERING . TEST the system for normal operation.
U1073	N/A	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 & 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 & FILTERING . TEST the system for normal operation.
U1112	1112	SCP invalid or missing data for interior lamps	GO to INTERIOR LIGHTING to continue diagnosis.
B1342	1342	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	1200	Stuck button	INSTALL a new EATC module. REFER to CONTROL COMPONENTS .
B2477	2477	Module not configured - LHD only	INSTALL a new EATC module. REFER to CONTROL COMPONENTS .
B1676	1676	Voltage out of range	Go To PINPOINT TEST H: NO COMMUNICATION WITH THE DUAL AUTOMATIC TEMPERATURE CONTROL MODULE .