Multifunction Electronic Modules System — Ford Crown Victoria II (1997-2011)

Module Controlled Functions

The multifunction modules consist of the following

air suspension module
driver door module (DDM)
lighting control module (LCM)

The air suspension module is linked to its own data link connector (DLC). The air suspension module controls the air suspension system and the electronic variable orifice (EVO) steering.

The (DDM) is connected to the international standards organization (ISO) 9141 communication network. The DDM controls many functions including power door locks and remote keyless entry.

The (LCM) is connected to the ISO 9141 communication network. The LCM controls both interior and exterior lighting, backlighting, the battery saver and warning chimes.

Diagnostic Trouble Code Chart

DTC	Description	Source	Action
B1213	Anti-Theft Number of Programmed Keys is Below Minimum	PATS Module	REFER to ANTI-THEFT .
B1219	Fuel Tank Pressure Sensor Circuit Failure	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1220	Fuel Tank Pressure Sensor Circuit Short to Battery	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1222	Fuel Temperature Sensor No. 1 Circuit Failure	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1223	Fuel Temperature Sensor No. 1 Circuit Open	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1224	Fuel Temperature Sensor No. 1 Circuit Short to Battery	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1225	Fuel Temperature Sensor No. 1 Circuit Short to Ground	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1226	Fuel Temperature Sensor No. 2 Circuit Failure	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1227	Fuel Temperature Sensor No. 2 Circuit Open	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1228	Fuel Temperature Sensor No. 2 Circuit Short to Battery	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1229	Fuel Temperature Sensor No. 2 Circuit Short to Ground	Natural Gas Fuel Indication Module	REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
B1231	Longitudinal Acceleration Threshold Exceeded	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B1247	Panel Dim Switch Circuit Open	LCM	REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION .
B1300	Power Door Lock Circuit Failure	LCM	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
B1310	Power Door Unlock Circuit Failure	LCM	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
B1317	Battery Voltage High	LCM	REFER to EXTERIOR LIGHTING .
B1317	Battery Voltage High	RCM	REFER to GENERATORS & REGULATORS .
B1317	Battery Voltage High	Natural Gas Fuel Indication Module	REFER to EXTERIOR LIGHTING .
B1317	Battery Voltage High	Air Suspension Module	REFER to BATTERY, MOUNTING AND CABLES .
B1318	Battery Voltage Low	Air Suspension Module	REFER to BATTERY, MOUNTING AND CABLES .
B1318	Battery Voltage Low	LCM	REFER to EXTERIOR LIGHTING .
B1318	Battery Voltage Low	RCM	REFER to GENERATORS & REGULATORS .
B1318	Battery Voltage Low	Natural Gas Fuel Indication Module	REFER to GENERATORS & REGULATORS .
B1319	Driver Door Ajar Circuit Failure	LCM	REFER to INTERIOR LIGHTING .
B1322	Door Ajar LF Short to Ground	DDM	REFER to INTERIOR LIGHTING .
B1322	Door Ajar LF Short to Ground	LCM	REFER to INTERIOR LIGHTING .
B1331	Decklid Ajar Rear Door Circuit Failure	LCM	REFER to INTERIOR LIGHTING .
B1334	Decklid Ajar Rear Door Short to Ground	LCM	REFER to INTERIOR LIGHTING .
B1340	Chime Input Request Circuit Short to Ground	LCM	WARNING DEVICES .
B1342	ECU is Defective	ABS Module	CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new ABS module. REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST . CLEAR the DTCs. REPEAT the self-test.
B1342	ECU is Defective	DDM	CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new DDM. REFER to MODULE - Driver Door (DDM) . CLEAR the DTCs. REPEAT the self-test.
B1342	ECU is Defective	LCM	CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new LCM. REFER to MODULE - Lighting Control (LCM) . CLEAR the DTCs. REPEAT the self-test.
B1342	ECU is Defective	RCM	CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new RCM. REFER to SAFETY BELT SYSTEM or AIR BAG RESTRAINT SYSTEMS . CLEAR the DTCs. REPEAT the self-test.
B1342	ECU is Defective	Natural Gas Fuel Indication Module	CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new natural gas fuel indication module. REFER to INSTRUMENT CLUSTER-NATURAL GAS VEHICLE . CLEAR the DTCs. REPEAT the self-test.
B1343	Heated Backlight Input Circuit Failure	LCM	REFER to INTERIOR LIGHTING .
B1345	Heated Backlight Input Circuit	LCM	REFER to INTERIOR LIGHTING .
B1352	Key In Ignition Failure	DDM	REFER to WARNING DEVICES .
B1352	Key In Ignition Failure	LCM	REFER to WARNING DEVICES .
B1354	Key In Ignition Short to Ground	LCM	REFER to WARNING DEVICES .
B1359	Ignition RUN/ACCESSORY Circuit Failure	LCM	REFER to STEERING COLUMN SWITCHES .
B1361	Ignition RUN/ACCESSORY Circuit Short to Battery	LCM	REFER to STEERING COLUMN SWITCHES .
B1396	Power Door Lock Circuit Short to Battery	DDM	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
B1396	Power Door Lock Circuit Short to Battery	LCM	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
B1397	Power Door Unlock Circuit Short to Battery	LCM	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
B1442	Door Handle Switch Circuit Failure	LCM	REFER to INTERIOR LIGHTING .
B1445	Door Handle Switch Circuit Short to Ground	LCM	REFER to INTERIOR LIGHTING .
B1446	Wiper PARK Sense Circuit Failure	LCM	REFER to WIPERS AND WASHERS .
B1449	Wiper PARK Sense Circuit Short to Ground	LCM	REFER to WIPERS AND WASHERS .
B1468	ECS/EIC Chime Input Request Circuit Failure	LCM	REFER to WARNING DEVICES .
B1470	Lamp Headlamp Input Circuit Failure	LCM	REFER to EXTERIOR LIGHTING .
B1472	Headlamp Input Circuit Short to Ground	LCM	REFER to EXTERIOR LIGHTING .
B1483	Brake Pedal Input Circuit Failure	DDM	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
B1484	Brake Pedal Input Open Circuit	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
B1526	Keyless Entry Circuit Short to Ground	DDM	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
B1549	Power Window Master Circuit Short to Battery	DDM	REFER to GLASS, FRAMES AND MECHANISMS .
B1553	Decklid Release Circuit Short to Battery	DDM	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
B1555	RUN/START Input Circuit Failure	LCM	REFER to STEERING COLUMN SWITCHES .
B1557	RUN/START Input Circuit Short to Battery	LCM	REFER to STEERING COLUMN SWITCHES .
B1563	Door Ajar Circuit Failure	LCM	REFER to INTERIOR LIGHTING .
B1566	Door Ajar Circuit Short to Ground	LCM	REFER to INTERIOR LIGHTING .
B1566	Door Ajar Circuit Short to Ground	Air Suspension Module	REFER to INTERIOR LIGHTING .
B1575	Lamp Park Input Circuit Failure	LCM	REFER to EXTERIOR LIGHTING .
B1578	Lamp Park Input Circuit Short to Ground	LCM	REFER to EXTERIOR LIGHTING .
B1600	PATS Ignition Key Transponder Signal is Not Received	PATS Module	REFER to ANTI-THEFT .
B1601	PATS Received Incorrect Key-Code From Ignition Key Transponder	PATS Module	REFER to ANTI-THEFT .
B1602	PATS Received Invalid Format of Key-Code From Ignition Key Transponder	PATS Module	REFER to ANTI-THEFT .
B1676	Battery Pack Voltage Out of Range	ABS Module	REFER to GENERATORS & REGULATORS .
B1677	Alarm Panic Input Circuit Failure	LCM	REFER to ANTI-THEFT .
B1679	Alarm Panic Input Circuit Short to Battery	LCM	REFER to ANTI-THEFT .
B1681	PATS Transceiver Module Signal is Not Received	PATS Module	REFER to ANTI-THEFT .
B1685	Lamp Dome Input Circuit Failure	LCM	REFER to INTERIOR LIGHTING .
B1688	Lamp Dome Input Circuit Short to Ground	LCM	REFER to INTERIOR LIGHTING .
B1693	Autolamp On Circuit Failure	LCM	REFER to EXTERIOR LIGHTING .
B1696	Autolamp On Circuit Short to Ground	LCM	REFER to EXTERIOR LIGHTING .
B1751	Park/Neutral Switch Short to Battery	DDM	REFER to TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
B1792	Autolamp Sensor Input Circuit Short to Battery	LCM	REFER to EXTERIOR LIGHTING .
B1793	Autolamp Sensor Input Circuit Short to Ground	LCM	REFER to EXTERIOR LIGHTING .
B1869	Lamp Air Bag Warning Indicator Circuit Open	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B1870	Lamp Air Bag Warning Indicator Circuit Short to Battery	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B1872	Turn Signal/Hazard Power Feed Circuit Short to Battery	LCM	REFER to EXTERIOR LIGHTING .
B1873	Turn Signal/Hazard Power Feed Circuit Short to Ground (Flasher Input)	LCM	REFER to EXTERIOR LIGHTING .
B1884	PAD Warning Lamp Inoperative	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B1890	PAD Warning Lamp Circuit Short to Battery	RCM	REFER to AIR BAG RESTRAINT SYSTEMS
B1891	Air Bag Tone Warning Indicator Circuit Short to Battery	RCM	REFER to WARNING DEVICES .
B1892	Air Bag Tone Warning Indicator Circuit Failure	RCM	REFER to WARNING DEVICES .
B1921	Air Bag Diagnostic Monitor Ground Circuit Open	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B2103	Antenna Not Connected	PATS Module	REFER to INSTRUMENT CLUSTER-CONVENTIONAL .
B2139	Data Mismatch (Receive Data Does Not Match What Was Expected)	PATS Module	REFER to ANTI-THEFT .
B2141	NVM Configuration Failure	PATS Module	REFER to MODULE COMMUNICATIONS NETWORK .
B2290	Occupant Classification System Fault	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B2292	Restraint System-Safety Belt Pretensioner Status	RCM	REFER to SAFETY BELT SYSTEM .
B2293	Restraint System-Air Bag Status	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B2295	Restraint System-Side Air Bag Status	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B2296	Restraint System-Impact Sensor Status	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
B2425	RKE Out of Sync	DDM	REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
B2432	Driver Safety Belt Buckle Switch Circuit Open	RCM	REFER to SAFETY BELT SYSTEM .
B2433	Driver Safety Belt Buckle Switch Circuit Short to Battery	RCM	REFER to SAFETY BELT SYSTEM .
B2434	Driver Safety Belt Buckle Switch Circuit Short to Ground	RCM	REFER to SAFETY BELT SYSTEM .
B2435	Driver Safety Belt Buckle Switch Resistance Out of Range	RCM	REFER to SAFETY BELT SYSTEM .
B2436	Passenger Safety Belt Buckle Switch Circuit Open	RCM	REFER to SAFETY BELT SYSTEM .
B2437	Passenger Safety Belt Buckle Switch Circuit Short to Battery	RCM	REFER to SAFETY BELT SYSTEM .
B2438	Passenger Safety Belt Buckle Switch Circuit Short to Ground	RCM	REFER to SAFETY BELT SYSTEM .
B2439	Passenger Safety Belt Buckle Switch Resistance Out of Range	RCM	REFER to SAFETY BELT SYSTEM
B2477	Module Configuration Failure	RCM	REFER to MODULE CONFIGURATION .
B2477	Module Configuration Failure	Air Suspension Module	REFER to MODULE CONFIGURATION .
B2498	Headlamp Switch Multiple Signals Input Active	LCM	REFER to EXTERIOR LIGHTING .
C1145	Speed Wheel Sensor RF Input Circuit Failure	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1155	Speed Wheel Sensor LF Input Circuit Failure	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1165	Speed Wheel Sensor RR Input Circuit Failure	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1175	Speed Wheel Sensor LR Input Circuit Failure	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1222	Speed Wheel Mismatch	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1266	ABS Valve Power Relay Circuit Failure	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1296	Wheel Speed LF Signal Fault	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1297	Wheel Speed RF Signal Fault	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1298	Wheel Speed RR Signal Fault	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1299	Wheel Speed LR Signal Fault	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1300	ABS Pump Motor Circuit Failure	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1414	Incorrect Vehicle ID	RCM	REFER to AIR BAG RESTRAINT SYSTEMS .
C1445	Vehicle Speed Signal Circuit Failure	Air Suspension Module	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
C1724	Air Suspension Height Sensor Power Circuit Failure	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1726	Air Suspension Rear Pneumatic Circuit Failure	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1760	Air Suspension Rear Height Sensor High (SE) Signal Circuit Failure	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1770	Air Suspension Vent Solenoid Output Circuit Failure	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1790	Air Suspension LR Air Spring/Shock Solenoid Output Circuit Failure	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1795	Air Suspension RR Air Spring/Shock Solenoid Output Circuit Failure	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1805	Mismatched PCM and/or ABS/TC Module	ABS Module	REFER to ANTI-LOCK CONTROL-TRACTION CONTROL & STABILITY ASSIST .
C1830	Air Suspension Compressor Relay Circuit Failure	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1840	Air Suspension Disable Switch Circuit Failure	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1897	Steering VAPS II Circuit Loop Failure	Air Suspension Module	REFER to STEERING SYSTEM-GENERAL INFORMATION .
C1946	Seat Track Position Switch Circuit Open	RCM	REFER to SEATING .
C1947	Seat Track Position Switch Circuit Short to Ground	RCM	REFER to SEATING .
C1948	Seat Track Position Switch Circuit Resistance Out of Range	RCM	REFER to SEATING .
C1964	Air Suspension Air Compressor Request Exceeded Max. Timing	Air Suspension Module	REFER to VEHICLE DYNAMIC .
C1982	Seat Track Position Switch Circuit Short to Battery	RCM	REFER to SEATING .
P0107	MAP/BP Sensor Low Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0108	MAP/BP Sensor High Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0112	Intake Air Temperature Circuit Low Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0113	Intake Air Temperature Circuit High Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0117	Engine Coolant Temperature Circuit Low Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0118	Engine Coolant Temperature Circuit High Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0132	Heated Oxygen Sensor Circuit High Voltage	ACFM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0134	Heated Oxygen Sensor Circuit No Activity Detected	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0152	Heated Oxygen Sensor Circuit High Voltage	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0154	Heated Oxygen Sensor Circuit No Activity Detected	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0171	System Too Lean (Bank 1)	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0172	System Too Rich (Bank 1)	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0174	System Too Lean (Bank 2)	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0175	System Too Rich (Bank 2)	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0182	Fuel Temperature Sensor A Circuit Low Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0183	Fuel Temperature Sensor A Circuit High Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0187	Fuel Temperature Sensor B Circuit Low Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0188	Fuel Temperature Sensor B Circuit High Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0192	Fuel Rail Pressure Sensor Circuit Low Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0193	Fuel Rail Pressure Sensor Circuit High Input	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
P0603	Powertrain Control Module Keep Memory Alive (KAM) Error	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
U1009	SCP (J1850) Invalid or Missing Data for Engine Torque	ABS Module	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
U1011	SCP (J1850) Invalid or Missing Data for Engine Air Intake	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
U1059	SCP (1850) Invalid or Missing Data for Transmission/Transaxle	ABS Module	REFER to INSTRUMENT CLUSTER-CONVENTIONAL .
U1062	SCP (J1850) Invalid or Missing Data for Engine RPM	Air Suspension Module	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE
U1071	SCP (J1850) Invalid or Missing Data For Engine Sensors	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
U1073	SCP (J1850) Invalid or Missing Data for Engine Coolant	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
U1260	SCP (J1850) Single Ended (+) Circuit Failure	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
U1261	SCP (J1850) Single Ended (-) Circuit Failure	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
U1262	SCP (J1850) Communication Bus Fault	ABS Module	REFER to MODULE COMMUNICATIONS NETWORK .
U1262	SCP (J1850) Communication Bus Fault	AFCM	REFER to MODULE COMMUNICATIONS NETWORK .
U1341	SCP (J1850) Invalid or Missing Data for Function Read Vehicle Speed	AFCM	REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
U2015	Signal Link Fault (Non SPC)	AFCM	REFER to MODULE COMMUNICATIONS NETWORK .

DIAGNOSTIC TROUBLE CODE (DTC)

Scheme 39

Scheme 39: Air Suspension Module

Principles of Operation

Vehicles that are not equipped with air suspension have a stand-alone variable assist power steering (VAPS) module. For additional information, refer to STEERING SYSTEM-GENERAL INFORMATION .

The air suspension module is linked to its own data link connector (DLC). The air suspension module controls the air suspension and the VAPS. For additional air suspension system information, refer to VEHICLE DYNAMIC .

The air suspension module is used to monitor and control the VAPS system. The VAPS system controls the level of power assistance available to the driver based on vehicle speed and rate of change in steering position. For additional VAPS system information, refer to STEERING SYSTEM-GENERAL INFORMATION .

Inspection and Verification

Verify the customer concern by operating the system.
Visually inspect for obvious signs of electrical damage. VISUAL INSPECTION Electrical Battery junction box (BJB) fuse 114 (30A) Central junction box (CJB) fuse 16 (15A) Wiring harness Connector(s) Circuitry Air suspension module
If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle: check that the program card is correctly installed. check the connections to the vehicle. check the ignition position.
If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with: CKT914, CKT915 or CKT70 = ALL ECUS NORESP/NOT EQUIP, refer to «MODULE COMMUNICATIONS NETWORK»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#module-communications-network-system) . NO RESPONSE/NOT EQUIP for AIR SUSP, Go To «PINPOINT TEST A»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#multifunction-electronic-modules-system) . SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the ASM.
If the DTCs retrieved are related to the concern, go to the «DIAGNOSTIC TROUBLE CODE CHART»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#multifunction-electronic-modules-system__diagnostic-trouble-code-chart) to continue diagnostics.
If no DTCs related to the concern are retrieved, refer to the appropriate section of the Workshop Manual to continue diagnostics.

Scheme 40

Scheme 40: Symptom Chart

Scheme 41

Scheme 41: PINPOINT TEST A: NO COMMUNICATION WITH THE AIR SUSPENSION MODULE

Scheme 42

Scheme 42: Driver Door Module (DDM)

Note. Upon installation of a new driver door module (DDM), the module must be reconfigured. Refer to MODULE CONFIGURATION . The DDM controls many functions including power door locks and remote keyless entry.

Verify the customer concern by operating the system.
Visually inspect for obvious signs of electrical damage. VISUAL INSPECTION Electrical Battery junction box fuse 8 (20A) Central junction box (CJB) circuit breaker 28 (20A) Wiring harness Connector(s) Circuitry
If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle: check that the program card is correctly installed. check the connections to the vehicle. check the ignition switch position.
If diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with: CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to «MODULE COMMUNICATIONS NETWORK»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#module-communications-network-system) . NO RESPONSE/NOT EQUIP for DDM, Go To «PINPOINT TEST B»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#multifunction-electronic-modules-system) . SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the DDM.
If the DTCs retrieved are related to the concern, go to «DIAGNOSTIC TROUBLE CODE (DTC)»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#multifunction-electronic-modules-system) to continue diagnostics.
If no DTCs related to the concern are retrieved, refer to the appropriate section of the Workshop Manual to continue diagnostics.

Scheme 43

Scheme 43: Symptom Chart

Scheme 44

Scheme 44: PINPOINT TEST B: NO COMMUNICATION WITH THE DRIVER DOOR MODULE

Scheme 45

Scheme 45: Lighting Control Module (LCM)

The lighting control module (LCM) is a microprocessor-based module that controls several vehicle subsystems. The LCM responds to electrical input signals from various switches, sensors, and external modules. The LCM is located under the LH side of the instrument panel. Subsystem functions of the LCM include headlamps with autolamps, turn signal lamps/hazard flasher lamps, cornering lamps, parking lamps, courtesy lamps, demand lamps, battery saver and control backlighting.

Scheme 46

Scheme 46: Inspection and Verification

Verify the customer concern by operating the system.
Visually inspect for obvious signs of electrical damage.
If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle: check that the program card is correctly installed. check the connections to the vehicle. check the ignition switch position.
If diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with: CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to «MODULE COMMUNICATIONS NETWORK»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#module-communications-network-system) . NO RESPONSE/NOT EQUIP for LCM, Go To «PINPOINT TEST C»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#multifunction-electronic-modules-system) . SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the LCM.
If the DTCs retrieved are related to the concern, go to «DIAGNOSTIC TROUBLE CODE (DTC)»(/ford/crown-victoria/ii-1997-2011/remont/communication-devices/#multifunction-electronic-modules-system) to continue diagnostics.
If no DTCs related to the concern are retrieved, refer to the appropriate section of the Workshop Manual to continue diagnostics.

Scheme 47

Scheme 47: Symptom Chart

Scheme 48

Scheme 48: PINPOINT TEST C: NO COMMUNICATION WITH THE LIGHTING CONTROL MODULE

Scheme 49

Scheme 49: Removal and Installation

Scheme 50

Scheme 51

Disconnect the battery ground cable. For additional information, refer to «BATTERY, MOUNTING AND CABLES»(/ford/crown-victoria/ii-1997-2011/remont/charging-system/#battery-mounting-and-cables) .
Remove the pin-type retainers and lower the instrument panel lower insulator.
Remove the instrument panel lower insulator. Disconnect the power point electrical connector. Remove the footwell lamp.
Remove the air suspension module. Disconnect the electrical connectors. Release the spring clips to remove the module from the bracket.
To install, reverse the removal procedure. Check for correct operation.

Scheme 52

Scheme 52: Removal and Installation

Disconnect the battery ground cable. For additional information, refer to «BATTERY, MOUNTING AND CABLES»(/ford/crown-victoria/ii-1997-2011/remont/charging-system/#battery-mounting-and-cables) .
Remove the driver door trim panel. For additional information, refer to «INTERIOR TRIM AND ORNAMENTATION»(/ford/crown-victoria/ii-1997-2011/remont/exteriorinterior-trim/#interior-trim-and-ornamentation) .
Remove the driver door module (DDM). Disconnect the electrical connector. Remove the screws. Release the locking tab.
To install, reverse the removal procedure. Check for correct operation.

Scheme 53

Scheme 53: Removal and Installation

Scheme 54

Scheme 55

Disconnect the battery ground cable. For additional information, refer to «BATTERY, MOUNTING AND CABLES»(/ford/crown-victoria/ii-1997-2011/remont/charging-system/#battery-mounting-and-cables) .
Remove the LH instrument panel lower insulator. Remove the pin-type retainers. Disconnect the courtesy lamp.
If equipped with adjustable pedals, remove the accelerator pedal, and shaft. For additional information, refer to «ACCELERATION CONTROL»(/ford/crown-victoria/ii-1997-2011/remont/engine-control-systems/#acceleration-control-system) .
Position the LCM aside. Remove the screws. Release the locking tab.
Disconnect the electrical connectors and remove the LCM.
To install, reverse the removal procedure. Check for correct operation.

Multifunction Electronic Modules System Ford Crown Victoria II