Module Communications Network: Other Ford Explorer III

Powertrain Control Module (PCM)

The PCM is on the SCP communication network. The PCM controls the engine for better fuel economy, emissions control, failure mode detection and storage, refer to SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE for diagnosis and testing of the PCM.

4-wheel Anti-Lock Brake (4WABS) Control Module

The 4WABS is on the SCP communication network. The 4WABS control module controls the brake pressure to the four wheels to keep the vehicle under control while braking. For additional information, refer to ANTI-LOCK CONTROL .

Restraint Control Module (RCM)

The RCM is on the ISO 9141 network. The RCM controls the deployment of the air bags based on sensor input. For additional information, refer to AIR BAG RESTRAINT SYSTEMS .

Electronic Automatic Temperature Control (EATC) Module

The EATC module is on the SCP communication network. The EATC module controls automatic climate functions that maintain the vehicle interior temperature at a constant setting. For additional information, refer to CLIMATE CONTROL SYSTEM .

Instrument Cluster

The instrument cluster is on the SCP communication network. The instrument cluster is also called a hybrid electronic cluster (HEC). It is an analog face cluster with a digital odometer. The instrument cluster displays a variety of information. For additional information, refer to INFORMATION, GAUGES AND WARNING DEVICES .

Tire Pressure Monitor Module

The tire pressure monitor module is on the SCP communication network. The tire pressure monitor module uses one sensor mounted in each tire to sense low tire pressure. When low tire pressure is sensed the module will send a warning to the driver. For additional information, refer to INFORMATION, GAUGES AND WARNING DEVICES .

Driver Seat Module (DSM)

The DSM is on the UBP communication network. The DSM controls the positioning and programming of the driver seat, pedals and both outside mirrors. For additional information, refer to SEATING .

Vehicle Security Module

The vehicle security module is on the UBP communication network. The vehicle security module controls the keyless entry functions for the vehicle. For additional information, refer to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .

Parking Aid Module

The parking aid module is connected to the ISO 9141 communication module. The module controls sensors in the rear bumper that detect close objects when the vehicle is in reverse. For additional information, refer to INFORMATION, GAUGES AND WARNING DEVICES .

4-Wheel Drive (4WD) Control Module

The 4WD control module is on the UBP communications network. The 4WD control module engages and disengages the transfer case between 2WD and 4WD when more traction is required. For additional information, refer to FOUR WHEEL DRIVE SYSTEMS .

MODULE CONFIGURATION

Some modules must be programmed as part of the repair procedure. If this procedure is not followed the module will not function correctly and may set a number of DTCs, including B2477 or P1639, which indicate that some necessary data has not been programmed into the module.

Modules that need programming should not be exchanged between vehicles. In most cases the parameter values or settings are unique to that vehicle, and if not set correctly will cause concerns or faults.

Some programmable parameters, such as belt minder on/off, can be changed from the factory setting at the customer's request.

Worldwide Diagnostic System (WDS) will automatically attempt to retrieve the module configuration information from all modules. If the module cannot communicate, the diagnostic tool will either request As-Built data or display a list of items that will need to be manually configured. The WDS will program the module based on the data entered.

There are three different methods that are used for module programming

1. programmable module installation (PMI)
2. calibration update
3. programmable parameters

Some modules do not support all three methods.

Programmable Parameters

This method is used to configure parameters that can be modified in service. These are typically at the preference of the customer. Not all features controlled by the module are listed in this configuration method. Refer to the PROGRAMMABLE PARAMETERS INDEX for a list of features by system.

If a module that has been modified using programmable parameters needs to be installed, the PMI procedure will maintain the parameters in their altered state if WDS is able to communicate with the old module during vehicle ID. Otherwise, programmable parameters may be needed to return them to the altered state.

Scheme 59

Configurable Modules

The vehicle contains the following modules that are configurable

1. tire pressure module
2. driver seat module (DSM)
3. electronic air temperature control (EATC) module
4. vehicle security module
5. anti-lock brake system (ABS) module
6. instrument cluster

MODULE CONTROLLED FUNCTIONS

The multifunction electronic control modules consist of the following

1. vehicle security module
2. driver seat module (DSM)

Possible Causes

1. circuit 693 (OG) shorted to ground or open
2. C3008f
3. in-line C2095
4. DLC C251
5. vehicle security module

Scheme 60

Scheme 61

1. circuit 693 (OG) shorted to ground or open
2. in-line C2108
3. 4WD control module C281b
4. DLC C251
5. 4WD control module

Scheme 62

Scheme 63

1. circuit 70 (LB/WH) shorted to ground or open
2. C310a
3. DLC C251
4. RCM

Scheme 64

1. circuit 914 (TN/OG) or 915 (PK/LB) shorted to ground or open
2. tire pressure monitor module C3183
3. in-line C2095
4. DLC C251
5. tire pressure monitor module

Scheme 65

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Scheme 67

1. circuit 693 (OG) shorted to ground or open
2. C341g
3. in-line C2095
4. in-line C3050
5. DLC C251
6. DSM

Scheme 68

Scheme 69

1. circuit 70 (LB/WH) shorted to ground or open
2. C4014
3. in-line C2095
4. in-line C408
5. DLC C251
6. parking aid module

Scheme 70

Scheme 71

1. circuits 914 (TN/OG) or 915 (PK/LB) shorted to ground or open
2. PCM C175a
3. in-line C263
4. DLC C251
5. PCM

Scheme 72

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Scheme 74

1. circuits 914 (TN/OG) or 915 (PK/LB) shorted to ground or open
2. instrument cluster C220b
3. DLC C251
4. instrument cluster

Scheme 75

1. circuits 914 (TN/OG) or 915 (PK/LB) shorted to ground or open
2. C228b
3. DLC C251
4. EATC module

Scheme 76

Scheme 77

1. circuits 914 (TN/OG) or 915 (PK/LB) shorted to ground or open
2. C155
3. in-line C263
4. in-line C126
5. DLC C251
6. ABS/TC Module or Stability Assist Module

Scheme 78

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Scheme 80

1. circuits 914 (TN/OG) or 915 (PK/LB) shorted to ground or open
2. in-line C2095
3. in-line C263
4. in-line C126
5. DLC C251
6. ABS/TC Module or Stability Assist Module
7. PCM
8. EATC module
9. instrument cluster
10. tire pressure monitor module

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Scheme 91

1. circuit 70 (LB/WH) shorted to ground or open
2. in-line C2095
3. in-line C408
4. DLC C251
5. parking aid module
6. RCM

Scheme 92

Scheme 93

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Scheme 95

1. DLC C251
2. 693 (OG)
3. in-lines C2095, C2108 or C408
4. diagnostic tool
5. vehicle security module
6. DSM
7. 4WD control module
8. instrument cluster

Scheme 96

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Scheme 101

1. circuit 693 (OG) shorted to ground or open
2. instrument cluster C220b
3. DLC C251
4. instrument cluster

Scheme 102

Scheme 103

1. DLC C251
2. diagnostic tool
3. circuit 1001 (WH/YE) open circuit
4. circuit 1205 (BK) open circuit
5. circuit 570 (BK/WH) open circuit

Scheme 104

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Scheme 106

1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of electrical damage.
3. 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.
4. If diagnostic tool still does not communicate with the vehicle, refer to the .
5. Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with: UBP = ALL ECUS NO RESP/NOT EQUIP, GO to Pinpoint Test M. NO RESPONSE/NOT EQUIP for DSM, GO to Pinpoint Test E. SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the DSM.
6. If the DTCs retrieved are related to the concern, go to the Diagnostic Trouble Code (DTC) Index to continue diagnostics.
7. If no DTCs related to the concern are retrieved, refer to the «SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE»(ref-152182) .

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Scheme 112

1. CJB fuses: 20 (5A) 1 (30A)
2. BJB fuses: 1 (60A) 29 (60A)
3. circuit 1003 (GY/YE) open or shorted to ground
4. circuit 566 (DG) open or shorted to ground
5. circuit 1203 (BK/LB) open
6. circuit 1205 (BK) open

Scheme 113

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Scheme 118

1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of electrical damage.
3. 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.
4. If diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
5. Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with: UBP = ALL ECUS NO RESP/NOT EQUIP, GO to Pinpoint Test M. NO RESPONSE/NOT EQUIP for vehicle security module, GO to Pinpoint Test A. SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the vehicle security module.
6. If the DTCs retrieved are related to the concern, go to the Diagnostic Trouble Code (DTC) Index to continue diagnostics.
7. If no DTCs related to the concern are retrieved, refer to «SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE»(ref-152182) .

Scheme 119

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Scheme 123

1. battery junction box (BJB) fuse 2 (30A)
2. central junction box (CBJ) fuse 20 (5A)
3. circuit 645 (WH/LB) open or shorted to ground
4. circuit 456 (DG/OG) open or shorted to ground
5. circuit 1205 (BK) open
6. vehicle security module

Scheme 124

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Scheme 127

1. Remove the driver seat. For additional information, refer to «SEATING»(ref-194073) .
2. Remove the components in the order indicated in the following illustration and the table.
3. To install, reverse the removal procedure.