1996 Explorer Remote Control Anti-theft And Alarm System Diagnosis
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1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 1
Antitheft and Alarm Systems: Testing and Inspection Remote Control Alarm and Lock System Principles of Operation Remote Control Alarm and Lock System The Remote Alarm and Lock system combines the functions of the Electronic Door Lock Control system and the Vehicle Anti-Theft system into a single module called the receiver assembly. In the New Generation Star (NGS) Tester, the system and module are called RAP which stands for Remote Anti-Theft Personality. As a remote entry receiver assembly, the module performs the following functions: Remote Entry (Key Fob) -
Unlock driver's door Unlock all doors and liftgate (40010) Lock all doors and liftgate Panic alarm Issue interior lamps ON (when unlocking) and OFF commands (when locking) to the Generic Electronic Module (GEM) Issue PERSONALITY commands to Memory Seat and Memory Mirror Modules when UNLOCK is pressed on a key fob (Explorer only) Horn chirp verify when fob LOCK pressed twice Double horn chirp notify when door left open Deactivate a triggered perimeter alarm Arm I Disarm Anti-Theft system Allow up to four transmitters to be programmed
Autolock/Relock (Explorer Automatics Only) -
Lock all doors Enabled/Disabled through keypad entries or ignition and door lock sequence
Keyless Entry (Keypad on Explorer Only) -
Unlock driver's door Unlock all doors and liftgate Lock all doors and liftgate Light Keypad Lamp Deactivate a triggered perimeter alarm Arm/Disarm Anti-Theft system Allow one user code to be programmed Issue interior lamps ON (when unlocking) and OFF commands (when locking) to the Generic Electronic Module (GEM)
As an anti-theft receiver assembly the module performs these functions: Anti-Theft -
Perimeter sensing - doors, trunk, hood Ignition tamper sensing Starter interrupt LED flashing when system is armed Perimeter Alarm Worldwide Alarm Configurations
Inputs and Outputs The receiver assembly processes inputs from the following: -
(2) Remote Entry Transmitters (key fobs) Keyless Entry Keypad Door disarm switches (left, right and liftgate key cylinders) Ignition tamper sensor Hood switch
1996 Ford Truck Explorer 4WD V8-302 5.0L -
Copyright © 2008, ALLDATA
9.90
Page 2
Door ajar output from GEM module Door lock switches (left, right and liftgate) Door unlock switches (left, right and liftgate) Stoplight switch (13480) Backup lamp housing (15502)
The system distributes output to the following: -
Driver door unlock relay All door unlock relay Lock all door relay Horn relay Headlamp relay Anti-theft (starter interrupt) relay Illuminated Entry request output to GEM module Memory 1 and 2 outputs to Memory Seat module Keypad lamp THEFT LED (not lamp) in Instrument Cluster. This section covers service procedures directly related to the receiver assembly.
Inspection and Verification Inspection and Verification The receiver assembly communicates on the New Generation Star (NGS) Tester diagnostics interface. Diagnostic testing is controlled by turning on outputs, reading inputs, retrieving DTCs, clearing DTCs, direct memory reference and initiating functional tests. Some of the tester's specific capabilities are listed below. -
Self Test and Fault Code reporting on inputs Recall last eight alarm trigger events (PIDs) Activate all outputs Monitor all inputs Transmitter TIC/Data Menu -
Identities all TICs (Transmitter Identification Codes) programmed to the system Identifies last TIC and button press received The on-demand self test consists of a module self test and a receiver assembly subsystem input/output self test. Continuous DTCs are not affected when running an on-demand self test.
NOTE: Do not press any buttons or switches during the on-demand self test. The receiver assembly is well equipped to identify bad inputs, but can do little to diagnose bad outputs. The individual testing the system must look for certain outputs to operate during the 10-second self test. The self test should be used for a quick overview of the system to determine if certain subsystems are operating correctly. The tester PID / DATA menu and the ACTIVE COMMANDS have a full set of tests for alarm and lock systems. Depending upon the option content of a vehicle, certain inputs or outputs may not respond because they are not installed at the time of vehicle manufacture. Follow the procedure outlined in Pinpoint Test A: NGS System Diagnostics and On-Line Self Test to start the 10-second receiver assembly self test. Using Rotunda New Generation Star (NGS) Tester Rotunda New Generation Star (NGS) Tester 007-00500 is a menu-driven device that allows self test diagnostics and DTC retrieval. Interface The NGS Tester communicates to the receiver assembly through the On-Board Diagnostic (OBD-ll) data link connector. The connector is located in the passenger compartment on the driver's side under the steering column. Retrieving Diagnostic Trouble Codes (DTC) The receiver assembly monitors the system during normal operation and reports concerns in the form of diagnostic trouble codes (DTCs). The DTCs can be retrieved with the NGS Tester through the communication link. The following procedure can be used to retrieve DTCs. 1. Turn the ignition switch to OFF.
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 3
2. Locate the tester data link located below the steering column. 3. NOTE: Only one multi-pin connector is used. Connect the tester connector to the vehicle data link connector. 4. NOTE: If the message LO BAT appears in the upper left corner of the read-out display and stays on, replace the tester's 9-volt battery before continuing with the on-board diagnostics. The message LO BAT appears momentarily when power switch is turned off. Turn on the power switch on the right side of the tester. A steady 00 or blank screen signifies that the tester is ready to start the on-board diagnostics and receive diagnostic trouble codes. 5. With the ignition switch still off, push the button in the center of the tester. 6. Push the button again. This deactivates the sequence. 7. If the tester passes the above test (00 or blank screen with button in TEST position), proceed with the on-board diagnostic procedure. If any diagnostic trouble codes appear during the on-board diagnostics, refer to the symptom chart.
8. Connect Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent to the connector located in the engine compartment. Verify that the tester is in SLOW MODE. 9. Turn on the tester and latch the button down in the TEST position. 10. Turn the ignition switch to RUN. 11. NOTE: Write down all codes. Code 16 indicates system OK. Do not replace anti-lock brake electronic control module. Read the first code output; after approximately 15 seconds the next code will be output.
Parameter Identification (PID) Codes Not all parameter identification (PID) codes displayed on the NGS Tester are functional on Ranger and Explorer vehicles. Following is a list of the applicable PID codes and a description of each code.
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 4
Diagnostic Trouble Codes (DTC's) Remote Control Alarm And Lock System
Parameter Identification (PID) Codes
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
Pinpoint Tests
9.90
Page 5
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 6
Pinpoint Tests
Loose Wiring Connection Diagnosis With NGS Tester
Pinpoint Tests
Wiring Connector Probe Points
To confirm a break in the wiring or a poor connection between a blade and terminal at a connector, use Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent to test receiver assembly circuit inputs. Follow these steps: 1. 2. 3. 4. 5. 6. 7.
Turn ignition switch to ON position. Connect the NGS Tester. Select the vehicle type, Data Link, RAP, ACTIVE COMMANDS Select PID LATCH Select PlDS Select the input to be monitored, LATCHIO and then START. Press or activate the switch on the circuit in question and keep it in its active state. LATCHIO is the latch input/output PID. At this point it counts the number of times that any input or output changes state. All other inputs will lock on the first change in state that is seen while on this PID LATCH screen.
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 7
8. Wiggle the wire at the point where connection is questionable. The LATCHIO PID keeps count of all state changes (even after the specific input looks on the first change in value). If there is a loose connection, the LATCHIO number increase quickly as the wire is wiggled. Probing the Receiver Assembly Harness Hardshells Probe the RAP module harness hardshells through the larger "T" shaped holes. Each "T" shaped hole exposes the same terminal as the smaller slotted hole where the blade enters the hardshell.
Self Test Diagnostic Chart NOTE: Forcing large probes, paper clips, etc. into the smaller slots will distort the terminal and create an intermittent connection between the blade and the terminal.
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Receiver Assembly Connector C1
Page 8
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Receiver Assembly Connector C2
Page 9
Copyright © 2008, ALLDATA
9.90
Page 1
Antitheft and Alarm Systems: Testing and Inspection Remote Control Alarm and Lock System Principles of Operation Remote Control Alarm and Lock System The Remote Alarm and Lock system combines the functions of the Electronic Door Lock Control system and the Vehicle Anti-Theft system into a single module called the receiver assembly. In the New Generation Star (NGS) Tester, the system and module are called RAP which stands for Remote Anti-Theft Personality. As a remote entry receiver assembly, the module performs the following functions: Remote Entry (Key Fob) -
Unlock driver's door Unlock all doors and liftgate (40010) Lock all doors and liftgate Panic alarm Issue interior lamps ON (when unlocking) and OFF commands (when locking) to the Generic Electronic Module (GEM) Issue PERSONALITY commands to Memory Seat and Memory Mirror Modules when UNLOCK is pressed on a key fob (Explorer only) Horn chirp verify when fob LOCK pressed twice Double horn chirp notify when door left open Deactivate a triggered perimeter alarm Arm I Disarm Anti-Theft system Allow up to four transmitters to be programmed
Autolock/Relock (Explorer Automatics Only) -
Lock all doors Enabled/Disabled through keypad entries or ignition and door lock sequence
Keyless Entry (Keypad on Explorer Only) -
Unlock driver's door Unlock all doors and liftgate Lock all doors and liftgate Light Keypad Lamp Deactivate a triggered perimeter alarm Arm/Disarm Anti-Theft system Allow one user code to be programmed Issue interior lamps ON (when unlocking) and OFF commands (when locking) to the Generic Electronic Module (GEM)
As an anti-theft receiver assembly the module performs these functions: Anti-Theft -
Perimeter sensing - doors, trunk, hood Ignition tamper sensing Starter interrupt LED flashing when system is armed Perimeter Alarm Worldwide Alarm Configurations
Inputs and Outputs The receiver assembly processes inputs from the following: -
(2) Remote Entry Transmitters (key fobs) Keyless Entry Keypad Door disarm switches (left, right and liftgate key cylinders) Ignition tamper sensor Hood switch
1996 Ford Truck Explorer 4WD V8-302 5.0L -
Copyright © 2008, ALLDATA
9.90
Page 2
Door ajar output from GEM module Door lock switches (left, right and liftgate) Door unlock switches (left, right and liftgate) Stoplight switch (13480) Backup lamp housing (15502)
The system distributes output to the following: -
Driver door unlock relay All door unlock relay Lock all door relay Horn relay Headlamp relay Anti-theft (starter interrupt) relay Illuminated Entry request output to GEM module Memory 1 and 2 outputs to Memory Seat module Keypad lamp THEFT LED (not lamp) in Instrument Cluster. This section covers service procedures directly related to the receiver assembly.
Inspection and Verification Inspection and Verification The receiver assembly communicates on the New Generation Star (NGS) Tester diagnostics interface. Diagnostic testing is controlled by turning on outputs, reading inputs, retrieving DTCs, clearing DTCs, direct memory reference and initiating functional tests. Some of the tester's specific capabilities are listed below. -
Self Test and Fault Code reporting on inputs Recall last eight alarm trigger events (PIDs) Activate all outputs Monitor all inputs Transmitter TIC/Data Menu -
Identities all TICs (Transmitter Identification Codes) programmed to the system Identifies last TIC and button press received The on-demand self test consists of a module self test and a receiver assembly subsystem input/output self test. Continuous DTCs are not affected when running an on-demand self test.
NOTE: Do not press any buttons or switches during the on-demand self test. The receiver assembly is well equipped to identify bad inputs, but can do little to diagnose bad outputs. The individual testing the system must look for certain outputs to operate during the 10-second self test. The self test should be used for a quick overview of the system to determine if certain subsystems are operating correctly. The tester PID / DATA menu and the ACTIVE COMMANDS have a full set of tests for alarm and lock systems. Depending upon the option content of a vehicle, certain inputs or outputs may not respond because they are not installed at the time of vehicle manufacture. Follow the procedure outlined in Pinpoint Test A: NGS System Diagnostics and On-Line Self Test to start the 10-second receiver assembly self test. Using Rotunda New Generation Star (NGS) Tester Rotunda New Generation Star (NGS) Tester 007-00500 is a menu-driven device that allows self test diagnostics and DTC retrieval. Interface The NGS Tester communicates to the receiver assembly through the On-Board Diagnostic (OBD-ll) data link connector. The connector is located in the passenger compartment on the driver's side under the steering column. Retrieving Diagnostic Trouble Codes (DTC) The receiver assembly monitors the system during normal operation and reports concerns in the form of diagnostic trouble codes (DTCs). The DTCs can be retrieved with the NGS Tester through the communication link. The following procedure can be used to retrieve DTCs. 1. Turn the ignition switch to OFF.
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 3
2. Locate the tester data link located below the steering column. 3. NOTE: Only one multi-pin connector is used. Connect the tester connector to the vehicle data link connector. 4. NOTE: If the message LO BAT appears in the upper left corner of the read-out display and stays on, replace the tester's 9-volt battery before continuing with the on-board diagnostics. The message LO BAT appears momentarily when power switch is turned off. Turn on the power switch on the right side of the tester. A steady 00 or blank screen signifies that the tester is ready to start the on-board diagnostics and receive diagnostic trouble codes. 5. With the ignition switch still off, push the button in the center of the tester. 6. Push the button again. This deactivates the sequence. 7. If the tester passes the above test (00 or blank screen with button in TEST position), proceed with the on-board diagnostic procedure. If any diagnostic trouble codes appear during the on-board diagnostics, refer to the symptom chart.
8. Connect Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent to the connector located in the engine compartment. Verify that the tester is in SLOW MODE. 9. Turn on the tester and latch the button down in the TEST position. 10. Turn the ignition switch to RUN. 11. NOTE: Write down all codes. Code 16 indicates system OK. Do not replace anti-lock brake electronic control module. Read the first code output; after approximately 15 seconds the next code will be output.
Parameter Identification (PID) Codes Not all parameter identification (PID) codes displayed on the NGS Tester are functional on Ranger and Explorer vehicles. Following is a list of the applicable PID codes and a description of each code.
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 4
Diagnostic Trouble Codes (DTC's) Remote Control Alarm And Lock System
Parameter Identification (PID) Codes
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
Pinpoint Tests
9.90
Page 5
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 6
Pinpoint Tests
Loose Wiring Connection Diagnosis With NGS Tester
Pinpoint Tests
Wiring Connector Probe Points
To confirm a break in the wiring or a poor connection between a blade and terminal at a connector, use Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent to test receiver assembly circuit inputs. Follow these steps: 1. 2. 3. 4. 5. 6. 7.
Turn ignition switch to ON position. Connect the NGS Tester. Select the vehicle type, Data Link, RAP, ACTIVE COMMANDS Select PID LATCH Select PlDS Select the input to be monitored, LATCHIO and then START. Press or activate the switch on the circuit in question and keep it in its active state. LATCHIO is the latch input/output PID. At this point it counts the number of times that any input or output changes state. All other inputs will lock on the first change in state that is seen while on this PID LATCH screen.
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Page 7
8. Wiggle the wire at the point where connection is questionable. The LATCHIO PID keeps count of all state changes (even after the specific input looks on the first change in value). If there is a loose connection, the LATCHIO number increase quickly as the wire is wiggled. Probing the Receiver Assembly Harness Hardshells Probe the RAP module harness hardshells through the larger "T" shaped holes. Each "T" shaped hole exposes the same terminal as the smaller slotted hole where the blade enters the hardshell.
Self Test Diagnostic Chart NOTE: Forcing large probes, paper clips, etc. into the smaller slots will distort the terminal and create an intermittent connection between the blade and the terminal.
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Receiver Assembly Connector C1
Page 8
1996 Ford Truck Explorer 4WD V8-302 5.0L
Copyright © 2008, ALLDATA
9.90
Receiver Assembly Connector C2
Page 9
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