Electronic Automatic Temperature Control (EATC) Module Diagnostic Trouble Code (DTC) Index

WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC TROUBLE CODE CHART ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC	EATC (On Demand) Self-Test Faults	EATC (Continuous) Run-Time Faults	Description	Action to Take
B2266	024	025	Blend door failure or short	Go To PINPOINT TEST A: DTC B2266 - BLEND DOOR FAILURE OR SHORT .
B1251	031	N/A	A/C in-car temperature sensor open circuit	Go To PINPOINT TEST B: DTC B1251 OR DTC1253 - A/C IN-CAR TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1253	030	N/A	A/C in-car temperature sensor short to ground	Go To PINPOINT TEST B: DTC B1251 OR DTC1253 - A/C IN-CAR TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1255	041	043	A/C 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	040	042	A/C 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	N/A	N/A	A/C solar radiation sensor circuit open	Go To PINPOINT TEST D: DTC B1259 OR DTC B1261 - SOLAR RADIATION SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B1261	050	052	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 .
U1073	N/A	-	SCP invalid or missing data for engine coolant	Refer to the INTRODUCTION article in ENGINE PERFORMANCE .
U1341	N/A	N/A	SCP invalid data for vehicle speed	Refer to the INTRODUCTION article in ENGINE PERFORMANCE .