DTC Chart: AWD System - PCM

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Network DTCs (U-codes) are often a result of intermittent concerns such as damaged wiring or low battery voltage occurrences. Additionally, vehicle repair procedures, such as module reprogramming, often set network DTCs. Replacing a module to resolve a network DTC is unlikely to resolve the concern. To prevent repeat network DTC concerns, inspect all network wiring, especially connectors. Test the vehicle battery. REFER to: Battery .

DTC Chart - PCM

DTC	Description	Action
P164D	AWD ID Block Corrupted, Not Programmed	PROGRAM the PCM with the Active Torque Coupling (ATC) solenoid bar code information using Automatic Torque Coupling Configuration. REFER to: Four-Wheel Drive Systems - System Operation and Component Description .
P181F	Clutch Control System Performance	This is an internal AWD relay module fault. INSTALL a new AWD relay module. REFER to: All-Wheel Drive (AWD) Module .
P182B	Transfer Case Fluid Temperature Sensor Circuit Range/Performance	GO to Pinpoint Test B
P182C	Transfer Case Fluid Temperature Sensor Circuit Low	GO to Pinpoint Test B
P182D	Transfer Case Fluid Temperature Sensor Circuit High	GO to Pinpoint Test B
P183D	Transfer Case Fluid Over Temperature	If equipped with PTU gear oil pump. GO to Pinpoint Test G For all other types, refer to diagnosis by symptom.
P183F	Driveline Cooling Pump Control Circuit	GO to Pinpoint Test G
P187B	Tire Size Out of Acceptable Range - AWD Disabled / Limited Function	GO to Pinpoint Test C
P188B	AWD Clutch Control Circuit	GO to Pinpoint Test D
P188C	AWD Relay Module Communication Circuit	CLEAR the DTCs. REPEAT the self-test. If the DTC returns, GO to Pinpoint Test E
P188D	AWD Relay Module Feedback Circuit	CLEAR the DTC. REPEAT the self-test. If the DTC returns, GO to Pinpoint Test E