Diagnostic Trouble Code Index

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: All DTCs can be retrieved as an on-demand (hard fault) or continuous (intermittent fault) fault. If a continuous (intermittent) fault, the degrees Celsius symbol (°C) will be displayed in addition to the DTCs.

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

DTC	EATC DTC displayed	Description	Action to Take
B1200	9200	Stuck button	Button held too long may set DTC. Attempt to clean buttons. If code returns, INSTALL a new EATC module. Refer to CLIMATE CONTROL ASSEMBLY .
B1251	9251	In-vehicle temperature sensor open circuit	Go To PINPOINT TEST A: DTC B1251 OR DTC B1253 - A/C IN-VEHICLE TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND
B1253	1253	In-vehicle temperature sensor circuit short to ground	Go To PINPOINT TEST A: DTC B1251 OR DTC B1253 - A/C IN-VEHICLE TEMPERATURE SENSOR OPEN CIRCUIT OR SHORT TO GROUND
B2795	2795	LH A/C solar radiation sensor circuit short to ground	Go To PINPOINT TEST B: DTC B2796, DTC B2795, DTC B2426 OR DTC B2427 - SOLAR RADIATION SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B2796	2796	LH A/C solar radiation sensor open circuit	Go To PINPOINT TEST B: DTC B2796, DTC B2795, DTC B2426 OR DTC B2427 - SOLAR RADIATION SENSOR OPEN CIRCUIT OR SHORT TO GROUND .
B2427	2427	RH A/C solar radiation sensor circuit short to ground	Go To PINPOINT TEST B: DTC B2796, DTC B2795, DTC B2426 OR DTC B2427 - SOLAR RADIATION SENSOR OPEN CIRCUIT OR SHORT TO GROUND
B2426	2426	RH A/C solar radiation sensor open circuit	Go To PINPOINT TEST B: DTC B2796, DTC B2795, DTC B2426 OR DTC B2427 - SOLAR RADIATION SENSOR OPEN CIRCUIT OR SHORT TO GROUND
B1242	1242	Air inlet door short/failure	Go To PINPOINT TEST C: DTC B1242 AIR INLET DOOR FAILURE
B2266	2266	LH blend door failure or short	Go To PINPOINT TEST J: DTC B2266 OR B2267: TEMPERATURE BLEND DOOR OPEN/SHORT TO GROUND / TEMPERATURE CONTROL IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B2267	2267	RH blend door failure or short	Go To PINPOINT TEST J: DTC B2266 OR B2267: TEMPERATURE BLEND DOOR OPEN/SHORT TO GROUND / TEMPERATURE CONTROL IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B1263	1263	Floor/defrost/panel door short/failure	Go To PINPOINT TEST D: DTC B1263 MODE DOOR FAILURE / INCORRECT/ERRATIC DIRECTION OF AIRFLOW FROM OUTLET(S) .
B1342	1342	EATC module faulted	Install a new EATC module. Refer to CLIMATE CONTROL ASSEMBLY .
B2477	2477	EATC module configuration error	Install a new EATC module Refer to CLIMATE CONTROL ASSEMBLY .

SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC	Description	Action to Take
C1779	(Single-zone EMTC only) Blower request signal circuit short to ground	Go To PINPOINT TEST L: THE BLOWER MOTOR DOES NOT OPERATE CORRECTLY - EMTC .
B2175	(Single-zone EMTC only) A/C request signal circuit short to ground	Go To PINPOINT TEST I: THE AIR CONDITIONING (A/C) IS ALWAYS ON .
B2513	Blower motor relay circuit short to ground	EMTC and blower is inoperative, Go To PINPOINT TEST K: THE BLOWER MOTOR IS INOPERATIVE - EMTC . EMTC and blower operates, Go To PINPOINT TEST L: THE BLOWER MOTOR DOES NOT OPERATE CORRECTLY - EMTC EATC and blower is inoperative, Go To PINPOINT TEST M: THE BLOWER MOTOR IS INOPERATIVE - EATC . EATC and blower operates, Go To PINPOINT TEST N: THE BLOWER MOTOR DOES NOT OPERATE CORRECTLY - EATC .
B2514	Blower motor relay circuit open/short to voltage	EMTC, Go To PINPOINT TEST K: THE BLOWER MOTOR IS INOPERATIVE - EMTC . EATC, Go To PINPOINT TEST M: THE BLOWER MOTOR IS INOPERATIVE - EATC .
B2543	Auxiliary control/actuator reference circuit short to ground	If auxiliary blower, temperature and mode are all affected, Go To PINPOINT TEST O: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE . If temperature only is affected, Go To PINPOINT TEST Q: THE AUXILIARY TEMPERATURE CONTROL ONLY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY . If mode only is affected, Go To PINPOINT TEST R: THE AUXILIARY PANEL/FLOOR CONTROL ONLY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B2544	Auxiliary control/actuator reference circuit short to voltage	If auxiliary blower, temperature and mode are all affected, Go To PINPOINT TEST P: THE AUXILIARY BLOWER MOTOR DOES NOT OPERATE CORRECTLY . If temperature only is affected, Go To PINPOINT TEST Q: THE AUXILIARY TEMPERATURE CONTROL ONLY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY . If mode only is affected, Go To PINPOINT TEST R: THE AUXILIARY PANEL/FLOOR CONTROL ONLY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B2559	Auxiliary blower motor relay circuit short to voltage	Go To PINPOINT TEST O: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE .
B2688	Auxiliary blower motor relay circuit open/short to ground	If auxiliary blower motor is inoperative, Go To PINPOINT TEST O: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE . If auxiliary blower motor operates, Go To PINPOINT TEST P: THE AUXILIARY BLOWER MOTOR DOES NOT OPERATE CORRECTLY .
B2561	Auxiliary blower motor speed relay 1 circuit short to voltage	Go To PINPOINT TEST P: THE AUXILIARY BLOWER MOTOR DOES NOT OPERATE CORRECTLY .
B2562	Auxiliary blower motor speed relay 1 circuit open/short to ground	Go To PINPOINT TEST P: THE AUXILIARY BLOWER MOTOR DOES NOT OPERATE CORRECTLY .
B2563	Auxiliary blower motor speed relay 2 circuit short to voltage	Go To PINPOINT TEST P: THE AUXILIARY BLOWER MOTOR DOES NOT OPERATE CORRECTLY .
B2564	Auxiliary blower motor speed relay 2 circuit open/short to ground	Go To PINPOINT TEST P: THE AUXILIARY BLOWER MOTOR DOES NOT OPERATE CORRECTLY
B2916	Auxiliary blend door motor circuits shorted	Go To PINPOINT TEST Q: THE AUXILIARY TEMPERATURE CONTROL ONLY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B2917	Auxiliary mode door motor circuits shorted	Go To PINPOINT TEST R: THE AUXILIARY PANEL/FLOOR CONTROL ONLY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B2919	Auxiliary blower motor speed input circuit short to voltage	Go To PINPOINT TEST P: THE AUXILIARY BLOWER MOTOR DOES NOT OPERATE CORRECTLY .
B2920	Auxiliary mode door feedback circuit open/shorted	Go To PINPOINT TEST R: THE AUXILIARY PANEL/FLOOR CONTROL ONLY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B2921	Auxiliary blend door feedback circuit open/shorted	Go To PINPOINT TEST Q: THE AUXILIARY TEMPERATURE CONTROL ONLY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .