DTC Charts

WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

PCM DIAGNOSTIC TROUBLE CODE INDEX

DTC	Description	Action to Take
P0532	A/C Refrigerant Pressure Sensor A Circuit Low	Go to Pinpoint Test A .
P0533	A/C Refrigerant Pressure Sensor A Circuit High	Go to Pinpoint Test A .
P0645	Air Conditioning Clutch Relay (A/CCR) Control Circuit	Go to Pinpoint Test B .
P1464	A/C Demand Out Of Self Test Range	If the HVAC selector was not in the OFF position, PLACE it in the OFF position, CLEAR the DTCs and REPEAT the self-test. If the DTC does not return, IGNORE the DTC and continue diagnostics. If the DTC returns, go to Pinpoint Test M . ^a
All Other DTCs	-	Introduction - Gasoline Engines article.

^a PCM DTC P1464 will set if the function selector is in PANEL with A/C button pressed, DEFROST or MAX A/C mode when the on-demand self-test is being run.

REAR AUDIO AND TEMPERATURE CONTROL (RATC) MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC	Description	Action
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 I .
B113F	Rear Climate Control Switch Circuit Short to Battery	Go to Pinpoint Test J .
U1178	SCP (J1850) Invalid or Missing Data for Climate Control (HVAC)	REFER to MODULE COMMUNICATIONS NETWORK article to diagnose a network concern.

HVAC MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC	Description	Action to take
B1200	Climate Control Pushbutton Circuit Failure	INSTALL a new HVAC module. REFER to CLIMATE CONTROL article.
B1242	Air Flow Recirculation Door Driver Circuit Failure	Go to Pinpoint Test K .
B1251	Air Temperature Internal Sensor Circuit Open	Go to Pinpoint Test D .
B1253	Air Temperature Internal Sensor Circuit Short to Ground	Go to Pinpoint Test D .
B1255	Air Temperature External Sensor Circuit Open	Go to Pinpoint Test E .
B1257	Air Temperature External Sensor Circuit Short to Ground	Go to Pinpoint Test E .
B1259	Solar Radiation Sensor Circuit Open	Go to Pinpoint Test F .
B1261	Solar Radiation Sensor Circuit Short to Ground	Go to Pinpoint Test F .
B1263	Servo Motor Vent Circuit Failure	Go to Pinpoint Test L .
B1264	Servo Motor Foot Circuit Failure	Go to Pinpoint Test L .
B1342	ECU is Faulted	Button held too long may set DTC. ATTEMPT to clean buttons. If code returns, INSTALL a new HVAC module. REFER to CLIMATE CONTROL article.
B1676	Battery Pack Voltage Out of Range	Go to Pinpoint Test H .
B2266	Left Side Blend Door Circuit Failure	Go to Pinpoint Test C .
B2267	Right Side Blend Door Circuit Failure	Go to Pinpoint Test C .
B2268	Steering Wheel Climate Control Circuit Open	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 Climate Control Circuit Short to Ground	Go to Pinpoint Test G .
B2477	Module Configuration Failure	CONFIGURE the HVAC module. REFER to MODULE CONFIGURATION article.
U1040	SCP (J1850) Invalid or Missing Data for Vehicle Speed	If DTCs are present in the PCM, REFER to the PCM DTC Chart and diagnose the DTCs. If DTCs are present in the Instrument Cluster (IC), REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article and diagnose the DTCs. If this DTC is only present in the HVAC module, ignore code and continue diagnostics.
U1073	SCP (J1850) Invalid or Missing Data for Engine Coolant	If DTCs are present in the PCM, REFER to the PCM DTC Chart and diagnose the DTCs. If DTCs are present in the IC, REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article and diagnose the DTCs. If this DTC is only present in the HVAC module, ignore code and continue diagnostics.
U1112	SCP (J1850) Invalid or Missing Data for Primary Id $70	Go to INTERIOR LIGHTING article, Inspection and Verification to continue diagnosis.
All Other DTCs	-	REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article.