Power Window System Cadillac Seville V

DESCRIPTION & OPERATION

POWER WINDOWS

A permanent-magnet motor operates each power window. Each motor raises and lowers window when voltage is supplied by appropriate door module. Motor direction depends on polarity of supply voltage. Switches control supply voltage polarity.

The following components are used to control power windows

1. Driver Door Module (DDM).
2. Passenger Door Module (PDM).
3. Left Rear Door Module (LRDM).
4. Right Rear Door Module (RRDM).
5. Driver Door Switch Assembly (DDSA).
6. Right front power window switch.
7. Left rear power window switch.
8. Right rear power window switch.
9. Left front power window motor.
10. Right front power window motor.
11. Left rear power window motor.
12. Right rear power window motor.
13. PWR WDO (30-amp) circuit breaker.

Vehicle is equipped with power windows, controlled by door modules. If Driver Door Module (DDM) receives a window switch request from a window switch integral to Driver Door Switch Assembly (DDSA), DDM check class 2 serial to verify if data status information is correct. If status information is correct, DDM will either supply power and ground to an associated window motor, or send a command through power door serial data line to appropriate door module, controlling window. Appropriate door module controlling window then supplies power and ground to an associated window motor, to move in requested direction.

When a window switch is operated, an associated door module examines request, and verifys if any messages from DDM are prohibiting movement. If conditions are correct, and no prohibitive messages have been received from DDM, associated door module then supplies power and ground to an associated window motor, to move in requested direction.

WINDOWS POWER & GROUND

Each door module has a separate battery voltage supply circuit for power window operation, but are all supplied by same 30-amp PWR EDO circuit breaker, located in rear fuse block. Each door module has a separate ground circuit for power window operation. These circuits are in same dedicated connector, as window motor drive circuits of each door module.

WINDOW MOTORS

Each door module has supplied battery voltage and ground, through window motor drive circuits, to appropriate window motor. Window motors are reversible. Direction window moves depends on which motor drive circuit battery voltage is applied to, and motor drive circuit ground is applied to. To move window in up direction, appropriate door module applies battery voltage to window motor up drive circuit, and ground to window motor down drive circuit. When a window movement in opposite direction is needed, appropriate door module reverses polarity, and supplies power and ground to opposite circuits to move window in reverse direction.

WINDOWS EXPRESS FEATURE

Driver Door Module (DDM) and Passenger Door Module PDM) have express up feature. This allows windows to be fully close by momentarily pressing appropriate window switch to second detent of window down position. Each front door window motor has a sensor mounted to it. These window sensors detect differences in their respective window motors electrical pulses, to determine if there is an obstruction of window glass. If a sensors detects that a passenger, or other obstacle, has become trapped between a window and window frame, it sends this information, through 2 communication circuits, to an associated door module. Door module then takes appropriate action and, either disables express up function, or reverses direction of window travel.

Each door module and corresponding sensor are wired to each other by 4 separate circuits to control express up function. Each front door module supplies battery voltage, through window sensor battery voltage circuit. Ground is supplied through window sensor low reference circuit, to sensor. Each door module communicates with sensor through 2 other separate and unique communication circuits. Communication circuits are, window sensor high speed communications circuit, which is a one-way communications line from sensor to associated module. Window sensor normal speed communications circuit, which is a 2-way communications line that carries information both ways, from sensor to associated module, and module to sensor. These communication lines are used for State-Of-Health (SOH) messages. Window switch command status, and communicate actual position of window glass in relationship to distance traveled by window.

If a any door module looses power for any reason, such as disconnecting battery, window motor must be reprogrammed, once power has been restored to door modules. Express up is available only on driver and passenger front door switch. Express down is available on all power window switches.

REAR WINDOW LOCK-OUT FEATURE

Rear window lock-out switch is integral to Driver Door Switch Assembly (DDSA). When it is pressed momentarily, LED indicator is illuminated, and DDSA receives switch signal. DDSA sends a message over power door serial data line to Driver Door Module (DDM) indicating switch is active. DDM then sends a message over power door serial data line to both rear door modules, prohibiting rear windows from being operated from rear door window switches. Rear windows can still be operated from DDSA.

COMPONENT LOCATIONS

COMPONENT LOCATIONS

WINDOW MOTOR - EXPRESS MODE

Note. Procedure is necessary if battery power is lost, either by battery or front door module(s) being disconnected.

Note. Procedure is written for programming express up/down function using power window switches. Express up/down is available only on driver's door switch, and passenger front door switch. Express down mode is available for all power windows.

Perform the following procedure to program door window regulator motors

1. Press and hold power window switch until window is fully down.
2. Continue holding power window switch for about 3 seconds.
3. Press and hold power window switch until window is fully up.
4. Continue holding power window switch for about 3 seconds.
5. Power window regulator motor is now programmed for express mode.
6. Repeat this process for all power windows.

ADJUSTMENTS

Note. For adjustment procedure, refer to window motor regulator installation. See WINDOW MOTOR REGULATOR under REMOVAL & INSTALLATION.

PRELIMINARY INSPECTION

Verify customer complaint by operating system. Visually inspect for obvious signs of mechanical and electrical damage. Inspect for blown fuses. For fuse and/or relay identification, refer to illustrations. (Scheme 1) Inspect for loose or corroded connections, damaged wiring harnesses and/or switches. Check for a broken or partially broken wire inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected. Check and ensure grounds are clean and tight. Ensure any aftermarket electronic equipment is properly installed. If fault is found, repair as necessary. If no fault is found, perform self-diagnostics. See SELF-DIAGNOSTIC SYSTEM.

Scheme 1

PROBLEM DIAGNOSIS

Intermittent problem diagnosis requires duplication of circuit or component failure in order to identify problem. See TEST PROCEDURES . These procedures may lead to Powertrain Control Module (PCM) recording a DTC which may help diagnosis.

If system does not set a DTC, use scan tool or DVOM to monitor voltage or resistance values while attempting to reproduce conditions which will create an intermittent problem.

When monitoring voltage, ensure specified test conditions are met. When monitoring resistance, ensure ignition switch is in OFF position or negative battery cable is disconnected. A status change on scan tool or DVOM while performing test procedures indicates area of problem.

Intermittent Simulation

Use the following methods to reproduce conditions causing intermittent problem(s)

1. Apply light vibration to components.
2. Apply small amount of heat to component.
3. Wiggle or bend wiring harness.
4. Remove/apply vacuum supply source.

Monitor circuit/component voltage or resistance while attempting to simulate intermittent. If vehicle is running, monitor for DTCs. Use test results to identify problem component or circuit.

Symptom Definition

Malfunction Indicator Light (MIL) comes on but does not stay on. A stored DTC may or may not exist.

Possible Causes & Corrections

This procedure is to determine possible causes of intermittent MIL operation. If problem is not found, duplicate intermittent condition, by performing the following

1. Check for poor mating of one connector to another. Terminals may not be fully seated. Check for improperly formed or damaged terminals. Check wire-to-terminal connections.
2. Check for poor connection from ignition coil to ground or arcing at spark plug wires or plugs.
3. Check for poor connections at PCM ground terminals.
4. Check for electrical system interference caused by defective relay, PCM-driven solenoid or switch, which may cause sharp electrical surge. This type of problem will normally occur when problem component is operated.
5. Check for aftermarket parts which may not have been produced to manufacturer's specifications. Solenoids without original equipment diodes for circuit protection or voltage regulators using transistors instead of silicone-chip circuitry may cause voltage surges (up to 300 volts) in PCM wiring, causing temporary PCM shutdown. PCM shutdown is a normal response to system over voltage (over 16 volts on most models). PCM re-powers when condition ceases to exist. A rapid shutdown and re-power could cause a flickering MIL with no DTCs set in memory.
6. Check for improper installation of electrical accessories such as auxiliary lights, cell phones or 2-way radios.
7. Ensure ground wire from PCM to distributor or ignition module is connected to a good ground.
8. Check for intermittent short to ground on data circuits of DLC or in MIL circuit. See ENGINE PERFORMANCE article in WIRING DIAGRAMS.
9. On vehicles not equipped with a driver information center, use scan tool to check for intermittent wiring problem. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

SELF-DIAGNOSTIC SYSTEM

Note. Diagnostic trouble code tests are written specifically for use with GM Tech I or Tech II scan tools. Generic scan tool can be used, but may have limited functions. This article only covers portion of those systems which relates to power window diagnosis.

DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK

1. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, near steering column. If scan tool powers up, go to next step. If scan tool does not power up, perform TEST A: SCAN TOOL DOES NOT POWER UP under SYSTEM TESTS in BODY CONTROL MODULES - SEVILLE article.
2. Turn ignition switch to RUN position, turn headlights switch to ON. Attempt to establish communications with Driver Door Module (DDM), Powertrain Control Module (PCM) and Rear Integration Module (RIM). If scan tool communicates with each module, go to next step. If scan tool does not communicate with each module, perform TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS in BODY CONTROL MODULES - SEVILLE article.
3. Using scan tool, access class 2 power mode from diagnostic circuit check. Cycle ignition switch through all positions while observing ignition switch power mode parameter. If parameter matches ignition switch positions, go to next step. If parameter does not match ignition switch positions, perform TEST C: POWER MODE MISMATCH under SYSTEM TESTS in BODY CONTROL MODULES - SEVILLE.
4. Using scan tool, select display DTC function for DDM. Record all displayed DTCs, status of displayed DTCs and module that set DTC. If any DTCs are retrieved, go to next step. If no DTCs are retrieved, repair power windows by symptom. See «SYMPTOM INDEX»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system) table under SYSTEM TESTS.
5. If scan tool displays any codes which begin with "U", perform TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS in BODY CONTROL MODULES - SEVILLE article. If scan tool does not display any codes which begin with "U", go to next step.
6. If scan tool displays DTC B1000, B1004, B1007 or B1009, perform appropriate test in accordance with DTC retrieved. See BODY CONTROL MODULES - SEVILLE. If scan tool does not display DTC B1004, B1007 or B1009, go to next step.
7. If scan tool displays DTC B1327 or B1328, perform appropriate test in accordance with DTC retrieved. See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS. If scan tool displays any other DTCs, perform appropriate test in accordance with DTC retrieved. See «DIAGNOSTIC TROUBLE CODE DEFINITIONS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__diagnostic-trouble-code-definitions) .
8. If scan tool displays B2757, B2762, 2767 or B2772, perform appropriate test in accordance with DTC retrieved. See POWER SEATS - SEVILLE. If scan tool displays any other DTCs, perform appropriate test in accordance with DTC retrieved. See «DIAGNOSTIC TROUBLE CODE DEFINITIONS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__diagnostic-trouble-code-definitions) .

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DIAGNOSTIC TESTS

Description

Window switch that failed and generated this Diagnostic Trouble Code (DTC) is mounted on passenger door and wired to appropriate door module. When switch is activated, appropriate door module examines switch signal and determines if conditions are correct for window function. If conditions are correct, door module then supplies power and ground to appropriate window motor and circuits to operate window. Window motors are reversible. When an up movement is requested, module applies battery voltage to up circuit and ground to down circuit. When a down movement is requested, module reverses polarity, and applies battery voltage to down circuit, and ground to up circuit. If Driver Door Module (DDM) receives a message from a door module indicating a window switch is closed for 15 continuous seconds or more, DDM will store DTC. When DTC is stored, action taken depends on which switch contacts are closed for 15 continuous seconds or more. The following are possible actions taken, when DTC is stored

1. If up switch contact is closed for 15 continuous seconds or more, both up and down movements are disabled until up switch contact is no longer closed, or ignition switch is cycled from OFF to RUN positions.
2. If down switch contact is closed for 15 continuous seconds or more, only down movement is disabled until down switch contact is no longer closed, or ignition switch is cycled from OFF to RUN positions. Up movement is operational regardless of down switch state.
3. If express switch contact is closed for 15 continuous seconds or more, express movement is disabled until express switch contact is no longer closed, or ignition switch is cycled from OFF to RUN position.

DDM clears current DTC, when switch message is not received, or ignition switch is cycled from OFF to RUN positions.

Code Enable Criteria

The following criteria must be met for DTC to run

1. PDM, LRDM, or RRDM must be powered.
2. DTCs B1327 or B1328 cannot be stored.

Testing

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, near steering column. Turn ignition switch to RUN position. Using scan tool, observe suspect door window switch parameter in Driver Door Module (DDM) inputs list. If parameter displays IDLE, go to next step. If parameter does not display IDLE, go to step 4 .
3. Activate suspect window switch through all positions. Using scan tool, observe suspect door window switch parameter in DDM inputs lists. If parameter does not change state, go to next step. If parameter changes state, problem may be intermittent. See «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING.
4. Turn ignition switch to OFF position. Disconnect suspect window switch 5-pin harness connector. Window switches are located on appropriate door panel. Turn ignition switch to RUN position. Using scan tool, observe suspect door window switch parameter in DDM inputs list. If parameter does not display IDLE go to next step. If parameter displays IDLE, go to step 7 .
5. Check for short to ground in suspect window switch signal circuit(s) between ground and suspect window switch harness connector. See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system) . If problem does not exist, go to next step. If problem exists, repair as necessary. After repair, go to step 10 .
6. Check for poor, loose or corroded terminals in suspect door module harness connector. If problem does not exist, go to step 8 . If problem exists, repair as necessary. After repair, go to step 10 .
7. Check for poor, loose or corroded terminals in suspect window switch harness connector. If problem does not exist, go to step 9 . If problem exists, repair as necessary. After repair, go to step 10 .
8. Replace suspect door module. See «DOOR MODULE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-module) under REMOVAL & INSTALLATION. Perform window motor programming. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. After repair, go to step 10 .
9. Replace suspect window switch. See «WINDOW SWITCH ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-switch-assembly) under REMOVAL & INSTALLATION. After repair, go to next step.
10. Using scan tool, clear DTCs. Operate vehicle within code enable criteria. See «CODE ENABLE CRITERIA»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__code-enable-criteria) . If DTCs does not reset, testing is complete. If DTCs reset, go to step 2 .

Window switch that failed and generated this Diagnostic Trouble Code (DTC) is a window switch integral to Driver Door Switch Assembly (DDSA). There are no external circuits involved. DDSA contains a microprocessor which takes signal generated by switch and assigns a digital message to it. DDSA then sends this message over class 2 serial data line to appropriate door module. Door module controlling window operation requested examines information to determine if conditions are correct for operation to occur. If conditions are correct, door module controlling window then provides power and ground to appropriate window motor. Window motors are reversible. When an up movement is requested, door module applies battery voltage to up circuit and ground to down circuit. For a down movement, door module reverses polarity, and applies battery voltage to down circuit, and ground to up circuit.

If Driver Door Module (DDM) receives a message from a door module indicating a window switch is closed for 15 continuous seconds or more, DDM will store DTC. When DTC is stored, action taken depends on which switch contacts are closed for 15 continuous seconds or more. The following are possible actions taken, when DTC is stored

1. If DDSA up window switch is closed for 15 continuous seconds or more, both up and down signals from switch will be ignored until input is no longer detected, or ignition switch is cycled from OFF to RUN positions.
2. If DDSA down window switch is closed for 15 continuous seconds or more, down signals from switch will be ignored until input is no longer detected, or ignition switch is cycled from OFF to RUN positions. Window up function from that switch will still be operational.
3. If DDSA express window switch is closed for 15 continuous seconds or more, express signals from switch will be ignored until DDSA no longer detects input.
4. All windows will operate normally from respective window switch.

DDM clears current DTC when switch signal is no longer received, or ignition switch cycled from OFF to RUN positions.

The following criteria must be met for DTC to run

1. DDM and DDSA must be powered
2. DTCs B1327 or B1328 cannot be stored.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Connect scan tool to Data Link Connector (DLC). DLC is located under left side of instrument panel. Turn ignition switch to RUN position. Using scan tool, observe suspect driver window switch parameter in Driver Door Module (DDM) inputs list. If parameter displays IDLE, go to next step. If parameter does not display IDLE, go to step 4 .
3. Using scan tool, observe suspect driver window switch parameter in DDM inputs list. Activate window switch through all positions, and observe scan tool. If parameter does not change state, go to next step. If parameter changes state, problem may be intermittent. For aid in diagnosing intermittents, see «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING.
4. Check for poor, loose or corroded terminals in DDSA harness connector. If problem does not exist, go to next step. If problem exists, repair as necessary. After repair, go to step 6 .
5. Replace DDSA. See «WINDOW SWITCH ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-switch-assembly) under REMOVAL & INSTALLATION. After repair, go to next step.
6. Using scan tool, clear DTCs. Operate vehicle within code enable criteria. See «CODE ENABLE CRITERIA»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system) . If DTCs do not reset, testing is complete. If DTCs reset, go to step 2 .

Window lock-out switch that failed and generated this Diagnostic Trouble Code (DTC) is integral to Driver Door Switch Assembly (DDSA). There are no external circuits involved. DDSA contains a microprocessor which takes ground signal generated by window lock-out switch and assigns a digital message. DDSA then sends this message over class 2 serial data line to Left Rear Door Module (LRDM) and Right Rear Door Module (RRDM) prohibiting window operation from either rear window switch. When lock-out is active, rear windows will not be operational from either rear window switch. Rear windows can still function using DDSA. When Driver Door Module (DDM) receives information that switch has been closed for 30 continuous seconds or more, DTC will be stored. When DTC is stored, DDM ignores inputs from window lock-out switch. DDM clears current DTC when message is no longer received from switch.

The following criteria must be met for DTC to set

1. Switch input is checked every 300 milliseconds regardless of source voltage.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Connect scan tool to data link connector (dlc). dlc is located below left side of instrument panel, near steering column. turn ignition switch to run position. using scan tool, observe window lock-out switch parameter in Driver Door Switch Assembly (DDSA) inputs list. If parameter displays IDLE, go to next step. If parameter does not display IDLE, go to step 4 .
3. Activate window lock-out switch through all positions. Using scan tool, observe window lock-out switch parameter in DDSA inputs list. If parameter does not change state, go to next step. If parameter changes state, problem may be intermittent. For aid in diagnosing intermittents, see «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING.
4. Check for poor, loose or corroded terminals in DDSA harness connector. If problem does not exist, go to next step. If problem exists, repair as necessary. After repair, go to step 6 .
5. Replace DDSA. See «WINDOW SWITCH ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-switch-assembly) under REMOVAL & INSTALLATION. After repair, go to next step.
6. Using scan tool, clear DTCs. Operate vehicle within code enable criteria. See «CODE ENABLE CRITERIA»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system) . If DTC does not reset, testing is complete. If DTC resets, go to step 2 .

Diagnostic Aids

An intermittently sticking switch can cause this DTC to store.

Express up function of front door power windows is monitored and controlled by both front door modules and window sensors. Each front door window motor has a window sensor mounted to it. Driver door module (DDM) and Passenger Door Module (PDM) each supply battery voltage and ground to power their respective window sensors. Each door module communicates with sensor through window sensor high speed communications circuit, and a window sensor normal speed communications circuit. Window sensor detects differences in window motors electrical pulses to determine if an obstruction to travel of front door window glass. Door modules use this information generated by sensors to disable express up movement of a window, or reverse direction of travel, in event a passenger, or other obstacle, has become trapped in it. Window sensor normal speed communications circuit is a 2-way serial data link between appropriate door module and sensor. Actual position of window glass is communicated through this circuit, as well as State-Of-Health (SOH) messages, and window switch command status. When sensor does not know actual position of window glass, and a "not normalized/not initialized" message is sent, DTC will be stored to appropriate door module. When DTC is stored, DDM or PDM will not allow express up function for appropriate window. All other window functions will still operate. DDM will clear current DTC when either DDM or PDM detects a corresponding sensor is no longer sending message.

The following criteria must be met for DTC to set

1. DDM and PDM must be powered.
2. DTCs B1327 or B1328 cannot be stored.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, near steering column. Turn ignition switch to RUN position. Using scan tool, retrieve DTCs. If no other DTCs are retrieved with B3832 or B3832, go to next step. If DTC B3832 is retrieved with U1713 and U1714, repair "U" DTCs first. If DTC B3833 is retrieved with DTCs U1715 and U1716, repair "U" DTCs first. See BODY CONTROL MODULES - SEVILLE article.
3. Attempt to operate suspect window to UP, DOWN, and EXPRESS DOWN positions. If window operates in all positions, go to next step. If window does not operate in any position, repair by symptom. See «SYMPTOM INDEX»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system) table under SYSTEM TESTS.
4. Perform window motor programming procedure. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. After programming, go to next step.
5. Using scan tool, clear DTCs. Operate vehicle within code enable criteria. See «CODE ENABLE CRITERIA»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system) . If DTC does not reset, problem may be intermittent. For aid in diagnosing intermittents, see «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING. If DTC resets, go to next step.
6. Check for poor, loose or corroded terminals in window motor harness connector. If problem does not exist, go to next step. If problem exists, repair as necessary. After repair, go to step 8 .
7. Replace suspect window motor. See «WINDOW MOTOR REGULATOR»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-regulator) under REMOVAL & INSTALLATION. After repair, go to next step.
8. Perform window motor programming procedure. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. Using scan tool, clear DTCs. Operate vehicle within code enable criteria. See «CODE ENABLE CRITERIA»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system) . If DTC does not reset, testing is complete. If DTC resets, go to step 2 .

If DTC B3832 or B3833 are retrieved with DTCs U1714 or U1716, diagnose "U" DTCs first. See BODY CONTROL MODULES - SEVILLE article. Express up function will be disabled when DTC B3832 or B3833 is stored. If power has been lost due to disconnecting battery, perform window motor programming. See WINDOW MOTOR - EXPRESS MODE under PROGRAMMING. If DTC B3832 or B3833 are retrieved, and power has not been lost, possible cause for DTC may be window sensor failure.

SYMPTOM TESTS

Note. Connector Test Adapter Kit (J 35616-A) must be used whenever a diagnostic procedure requires checking or probing a terminal to prevent damage to terminal. To locate and identify connectors and terminals, see WIRING DIAGRAMS .

Note. Before performing following tests, perform preliminary inspection. See PRELIMINARY INSPECTION under TROUBLE SHOOTING. To identify connectors and wire colors, see WIRING DIAGRAMS .

Note. Before replacing any control module, ensure all module ground and power circuits are functioning properly. For circuit identification, see GROUND DISTRIBUTION and POWER DISTRIBUTION articles in WIRING DIAGRAMS.

SYMPTOM INDEX

TEST A: ALL POWER WINDOWS INOPERATIVE

Note. Vehicle is equipped with express up, torque sensitive front door windows. When battery or power has been removed from either front door module, programming procedure will need to be performed, once power has been restored. See WINDOW MOTOR - EXPRESS MODE under PROGRAMMING.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Turn ignition switch to RUN position. Attempt to operate power windows from both Driver Door Switch Assembly (DDSA), and passenger side window switches. If all windows are inoperative, go to next step. If any window operates, problem may be intermittent. For aid in diagnosing intermittents, see «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING.
3. Remove PWR WDO circuit breaker (30-amp) from rear fuse block. Rear fuse block is located below left side of rear passenger seat. Using test light connected to ground, probe battery supply voltage socket of PWR WDO circuit breaker. See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). If test light illuminates, go to next step. If test light does not illuminate, go to step 9.
4. Connect a test light between PWR WDO circuit breaker sockets. If test light does not illuminate, leave test light connected, and go to next step. If test light illuminates, go to step 6.
5. Operate any window switch, while observing test light. If test light does not illuminate, go to step 8. If test light illuminates, go to step 13.
6. Gain access to door modules. Door modules are located behind respective door trim panel. Disconnect door module harness connectors one at a time, while observing test light. If test light goes out after any module is disconnected, go to next step. If test light remains illuminated after all modules are disconnected, go to step 10.
7. Check for poor, loose or corroded terminals in suspect door module harness connector. If problem does not exist, go to step 11. If problem exists, repair as necessary. After repair, go to step 14.
8. Check for poor, loose or corroded terminals in rear fuse block sockets. If problem does not exist, go to step 12. If problem exists, repair as necessary. After repair, go to step 14.
9. Repair open in battery supply circuit (Black wire) between battery and rear fuse block. See POWER DISTRIBUTION article in WIRING DIAGRAMS. After repair, go to step 14.
10. Repair short to ground in Orange wire between rear fuse block and suspect door module harness connector C5 terminal "A". (Scheme 2) See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). After repair, go to step 14.
11. Replace suspect door module. See «DOOR MODULE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-module) under REMOVAL & INSTALLATION. Perform window motor programming. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. After repair, go to step 14.
12. Replace rear fuse block. After repair, go to step 14.
13. Replace PWR WDO circuit breaker. After repair, go to next step.
14. Operate system to verify repair. If system operates normally, testing is complete. If system does not operate normally, go to step 2.

Scheme 2

Each door module has own battery voltage circuit for window operation This circuit is associated with door module harness connectors C5. Battery voltage circuits are all fed by PWR WDO circuit breaker located in rear fuse block.

TEST B: POWER WINDOWS EXPRESS UP FUNCTION INOPERATIVE

Note. Vehicle is equipped with express up, torque sensitive front door windows. When battery or power has been removed from either front door module, programming procedure will need to be performed, once power has been restored. See WINDOW MOTOR - EXPRESS MODE under PROGRAMMING.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Verify express up function, by using Driver Door Switch Assembly (DDSA). Operate front windows for both doors. If windows do not operate normally, go to next step. If windows operate normally, problem may be intermittent. See «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING.
3. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, near steering column. Turn ignition switch to RUN position. Using scan tool, observe suspect driver window switch parameter in DDSA inputs list. Using DDSA, operate each switch through express up positions. Window switch parameter should change from IDLE to EXPRESS UP, as commanded. If parameter is as specified, go to next step. If parameter is not as specified, go to step 12 .
4. If suspect express up is passenger window, go to next step. If suspect window is any other window, go to step 6 .
5. Using scan tool, observe window switch parameter in. DDM inputs list. Operate passenger front window switch to EXPRESS UP position. Window switch parameter should change from IDLE to EXPRESS UP as commanded. If parameter is as specified, go to next step. If parameter is not display as specified, go to step 12 .
6. Disconnect window motor harness connector. Using a DVOM, measure voltage of high speed communications circuit between ground and window motor harness connector terminal "D" (Light Green wire). Voltage should be 7.0-9.25 volts. If voltage is not as specified, go to next step. If voltage is as specified, go to step 11 .
7. Test high speed communications circuit (Light Green wire) for a short to ground, an open, or a high resistance between suspect window motor harness connector terminal "D" and suspect door module harness connector C1 terminal No. 18. See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system) . If problem does not exist, go to next step. If problem exists, repair as necessary. After repair, go to step 17 .
8. Test high speed communications circuit (Light Green wire) for a short to voltage between suspect window motor harness connector terminal "D" and suspect door module harness connector C1 terminal No. 18. If problem does not exist, go to next step. If problem exists, repair as necessary. After repair, go to step 17 .
9. Inspect for poor connections in suspect door module harness connector. If problem does not exist, go to step 13 . If problem exists, repair as necessary. After repair, go to step 17 .
10. Check for poor, loose or corroded terminals in DDSA harness connector. If problem does not exist, go to step 14 . If problem exists, repair as necessary. After repair, go to step 17 .
11. Check for poor, loose or corroded terminals in window motor harness connector. If problem does not exist, go step 15 . If problem exists, repair as necessary. After repair, go to step 17 .
12. Check for poor, loose or corroded terminals in suspect window switch harness connector. If problem does not exist, go to step 16 . If problem exists, repair as necessary. After repair, go to step 17 .
13. Replace suspect door module. See «DOOR MODULE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-module) under REMOVAL & INSTALLATION. Perform window motor programming. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. After repair, go to step 17 .
14. Replace DDSA. See «WINDOW SWITCH ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-switch-assembly) under REMOVAL & INSTALLATION. After repair, go to step 17 .
15. Replace suspect window motor. See «WINDOW MOTOR REGULATOR»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-regulator) under REMOVAL & INSTALLATION. After repair, go to step 17 .
16. Replace suspect window switch. See «WINDOW SWITCH ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-switch-assembly) under REMOVAL & INSTALLATION. After repair, go to next step.
17. Perform window motor programming. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. Operate system to verify repair. If system operates normally, testing is complete. If system does not operate normally, go to step 2

TEST C: POWER WINDOWS LOCK-OUT FUNCTION INOPERATIVE

Note. This test assumes all DTCs have been diagnosed.

Note. Vehicle is equipped with express up, torque sensitive front door windows. When battery or power has been removed from either front door module, programming procedure will need to be performed, once power has been restored. See WINDOW MOTOR - EXPRESS MODE under PROGRAMMING.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Using Driver Door Switch Assembly (DDSA), operate all power windows to verify if lock-out function is operating normally. If lock-out function does not operate normally, go to next step. If lock-out function operates normally, problem may be intermittent. See «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING.
3. Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, near steering column. Turn ignition switch to RUN position. Using scan tool, observe window lock-out switch parameter in Driver Door Switch Assembly (DDSA) inputs list. Momentarily press lock-out switch. Press lock-out switch a second time. Parameter should display ACTIVE with switch pressed, and IDLE when pressed a second time. If parameter is as specified, go to next step. If parameter is not as specified, go to step 6 .
4. Turn ignition switch to RUN position. Observe lock-out LED indicator while momentarily pressing lock-out switch to ON and OFF positions. Lock-out LED should illuminate with switch pressed on, then go out when switch is pressed off. If lock-out LED indicator illuminates as specified, go to next step. If lock-out LED indicator does not illuminate as specified, go to step 6 .
5. Check for poor, loose or corroded terminals in suspect door module harness connector. If problem does not exist, go to step 7 . If problem exists, repair as necessary. After repair, go to step 9 .
6. Check for poor, loose or corroded terminals in DDSA harness connector. If problem does not exist, go to step 8 . If problem exists, repair as necessary. After repair, go to step 9 .
7. Replace DDM. See «DOOR MODULE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-module) under REMOVAL & INSTALLATION. Perform window motor programming. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. After repair, go to step 9 .
8. Replace DDSA. See «WINDOW SWITCH ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-switch-assembly) under REMOVAL & INSTALLATION. After repair, go to next step.
9. Operate system to verify repair. If system operates normally, testing is complete. If system does not operate normally, go to step 2 .

A momentary press of lock-out switch will activate rear window lock-out function. When system has been activated, LED indicator on switch will be illuminated. Scan tool parameter will only display active when switch is being pressed. When switch is released, parameter displayed will return to IDLE regardless if system has become active or not.

TEST D: PASSENGER DOOR POWER WINDOW INOPERATIVE

Note. Vehicle is equipped with express up, torque sensitive front door windows. When battery or power has been removed from either front door module, programming procedure will need to be performed, once power has been restored. See WINDOW MOTOR - EXPRESS MODE under PROGRAMMING.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Operate passenger side windows. If windows do not operate normally, go to next step. If windows operate normally, problem may be intermittent. See «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING.
3. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, near steering column. Turn ignition switch to RUN position. Using scan tool, observe suspect passenger door window switch parameter in Driver Door Module (DDM) inputs list. Operate passenger door window switch to UP, DOWN and EXPRESS DOWN positions. Window switch parameter should change from IDLE to UP, DOWN and EXPRESS DOWN. If parameter is as specified, go to next step. If parameter is not as specified, go to step 8.
4. Turn ignition switch to OFF position. Disconnect Passenger Door Module (PDM) Black 4-pin harness connector C5. Turn ignition switch to RUN position. Connect test light between PDM harness connector C5 terminals "A" (Orange wire) and "D" (Black wire). (Scheme 2) If test light illuminates, go to next step. If test light does not illuminate, go to step 11.
5. Turn ignition switch to OFF position. Connect PDM harness connector. Disconnect suspect window motor Gray 2-pin harness connector. Turn ignition switch to RUN position. Using test light connected to ground, probe power window motor up circuit (Dark Blue wire) at suspect window motor harness connector terminal "A" (right front door window motor) or "B" (right rear door or left rear door window motor). (Scheme 3)and (Scheme 4). See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). Operate suspect passenger window switch to UP position. If test light illuminates, go to next step. If test light does not illuminate, go to step 12.
6. Using test light connected to ground, probe power window motor down circuit (Brown wire) at suspect window motor harness connector terminal "A". Operate passenger window switch to DOWN position. If test light illuminates, go to next step. If test light does not illuminate, go to step 12.
7. Connect test light between window motor harness connector terminals "A" (Brown wire) and "B" (Dark Blue wire). Operate suspect passenger window switch to UP and DOWN positions. If test light illuminates in both positions, go to step 16. If test light does not illuminate in both positions, go to step 17.
8. Turn ignition switch to OFF position. Disconnect suspect window switch 5-pin harness connector. Connect a fused (3-amp) jumper wire between window switch harness connector terminals No. 1 (switch up signal circuit) and 4 (ground circuit). (Scheme 5) See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). Turn ignition switch to RUN position. Using scan tool, observe suspect window switch parameter. If parameter displays UP, go to next step. If parameter does not display UP, go to step 13.
9. Turn ignition switch to OFF position. Connect a fused (3-amp) jumper wire between window switch harness connector terminals No. 2 (switch down circuit) and 4 (ground circuit). See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). Turn ignition switch to RUN position. Using scan tool, observe suspect door window switch parameter. If parameter displays DOWN, leave jumper wire connected, and go to next step. If parameter does not display DOWN, go to step 14.
10. Connect a second fused (3-amp) jumper wire between window switch harness connector terminals No. 3 (switch express down signal) and 4 (ground circuit). Using scan tool, observe suspect window switch parameter. If parameter does not display EXPRESS DOWN, go to step 14. If parameter displays EXPRESS DOWN, go to step 15.
11. Inspect Orange wire for an open between suspect door module harness connector C5 terminal "A" and rear fuse block. (Scheme 2) If problem does not exist, go to step 18. If problem exists, repair as necessary. After repair, go to step 22.
12. Inspect suspect window motor control circuits for opens, shorts to ground, or shorts to each other between suspect door module and suspect window motor. See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). If problem does not exist, go to step 17. If problem exists, repair as necessary. After repair, go to step 22.
13. Inspect for an open in ground circuit (Black/White wire) between suspect door module harness connector C1 terminal No. 10 and window switch harness connector terminal No. 4. (Scheme 5) See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). If problem does not exist, go to next step. If problem exists, repair as necessary. After repair, go to step 22.
14. Inspect for an open or short to voltage in appropriate signal circuits between suspect window switch and motor harness connector. See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). If problem does not exist, go to step 17. If problem exists, repair as necessary. After repair, go to step 22.
15. Check for poor, loose or corroded terminals in suspect window switch harness connector. If problem does not exist, go to step 19. If problem exists, repair as necessary. After repair, go to step 22.
16. Check for poor, loose or corroded terminals in suspect window motor harness connector. If problem does not exist, go to step 20. If problem exists, repair as necessary. After repair, go to step 22.
17. Check for poor, loose or corroded terminals in suspect door module harness connector. If problem does not exist, go to step 21. If problem exists, repair as necessary. After repair, go to step 22.
18. Repair open in ground circuit between ground and suspect door module harness connector C5 terminal "D" (Black wire). Ground point is located on right front corner, below front of sill trim or below right front seat. See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). After repair, go to step 22.
19. Replace suspect window switch. See «WINDOW SWITCH ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-switch-assembly) under REMOVAL & INSTALLATION. After repair, go to step 22.
20. Replace suspect window motor. See «WINDOW MOTOR REGULATOR»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-regulator) under REMOVAL & INSTALLATION. After repair, go to step 22.
21. Replace suspect door module. See «DOOR MODULE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-module) under REMOVAL & INSTALLATION. Perform window motor programming. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. After repair, go to next step.
22. Operate system to verify repair. If system operates normally, testing is complete. If system does not operate normally, go to step 2.

Scheme 3

Scheme 4

Scheme 5

TEST E: POWER WINDOW INOPERATIVE FROM MASTER SWITCH

Note. Vehicle is equipped with express up, torque sensitive front door windows. When battery or power has been removed from either front door module, programming procedure will need to be performed, once power has been restored. See WINDOW MOTOR - EXPRESS MODE under PROGRAMMING.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-systems-diagnostic-system-check) under SELF-DIAGNOSTIC SYSTEM.
2. Verify operation of power windows, by using Driver Door Switch Assembly (DDSA). If power windows do not operate normally, go to next step. If power windows operate normally, problem may be intermittent. See «PRELIMINARY INSPECTION»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__preliminary-inspection) under TROUBLE SHOOTING.
3. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, near steering column. Turn ignition switch to RUN position. Using scan tool, observe suspect driver window switch parameter in DDSA inputs list. Operate DDSA to UP, DOWN and EXPRESS DOWN positions. Window switch parameter should change from IDLE to UP, DOWN and EXPRESS DOWN as commanded. If parameter is as specified, go to next step. If parameter is not as specified, go to step 12.
4. If inoperative window is driver window, go to next step. If inoperative window is passenger window, perform «TEST D: PASSENGER DOOR POWER WINDOW INOPERATIVE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__test-d-passenger-door-power-window).
5. Turn ignition switch to OFF position. Disconnect Driver Door Module (DDM) Black 4-pin harness connector C5. Turn ignition switch to RUN position. Connect test light between DDM harness connector C5 terminals "A" (Orange wire) and "D" (Black wire). (Scheme 2) If test light illuminates, go to next step. If test light does not illuminate, go to step 11.
6. Connect DDM harness connector C5. Disconnect driver window motor Gray 2-pin harness connector. Turn ignition switch to RUN position. Using test light connected to ground, probe window motor harness connector terminal "A" (Dark Blue wire). (Scheme 3) See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). Operate driver window switch to UP position. If test light illuminates, go to next step. If test light does not illuminate, go to step 9.
7. Using test light connected to ground, probe driver window motor harness connector terminal "C" (Brown wire). Operate driver window switch to DOWN position. If test light illuminates, go to next step. If test light does not illuminate, go to step 10.
8. Connect test light between driver window motor harness connector terminals "A" (Dark Blue wire) and "C" (Brown wire). Operate driver window switch to UP and DOWN positions. If test light illuminates in both positions, go to step 13. If test light does not illuminate in both positions, go to step 14.
9. Check for short to ground, open, or high resistance in left front up circuit (Dark Blue wire) between driver window motor harness connector terminal "A" and DDM harness connector C5 terminal "C". See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). If problem does not exist, go to step 14. If problem exists, repair as necessary. After repair, go to step 19.
10. Check for short to ground, open, or high resistance in left front down circuit (Brown wire) between driver window motor harness connector terminal "C" and DDM harness connector C5 terminal "B". See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). If problem does not exist, go to step 14. If problem exists, repair as necessary. After repair, go to step 19.
11. Check for open, or high resistance in Orange wire between rear fuse block and DDM harness connector C5 terminal "A". See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). If problem does not exist, go to step 15. If problem exists, repair as necessary. After repair, go to step 19.
12. Check for poor, loose or corroded terminals in DDSA harness connector. If problem does not exist, go to step 16. If problem exists, repair as necessary. After repair, go to step 19.
13. Check for poor, loose or corroded terminals in driver window motor harness connector. If problem does not exist, go to step 17. If problem exists, repair as necessary. After repair, go to step 19.
14. Check for poor, loose or corroded terminals in DDM harness connector. If problem does not exist, go to step 18. If problem exists, repair as necessary. After repair, go to step 19.
15. Repair open in ground circuit between ground and DDM harness connector C5 (Black wire). Ground point is located on left front corner, below front of sill trim. See «WIRING DIAGRAMS»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system). After repair, go to step 19.
16. Replace DDSA. See «WINDOW SWITCH ASSEMBLY»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-switch-assembly) under REMOVAL & INSTALLATION. After repair, go to step 19.
17. Replace driver window motor. See «WINDOW MOTOR REGULATOR»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-regulator) under REMOVAL & INSTALLATION. After repair, go to step 19.
18. Replace DDM. See «DOOR MODULE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-module) under REMOVAL & INSTALLATION. Perform window motor programming. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING. After repair, go to next step.
19. Operate system to verify repair. If system operates normally, testing is complete. If system does not operate normally, go to step 2.

Scheme 6

REMOVAL & INSTALLATION

Note. Vehicle is equipped with express up, torque sensitive front door windows. When battery or power has been removed from either front door module, programming procedure will need to be performed, once power has been restored. See WINDOW MOTOR - EXPRESS MODE under PROGRAMMING.

Note. Use correct fastener in correct location. Replacement fasteners must be correct part number for application. Fasteners requiring replacement or fasteners requiring use of thread locking compound or sealant are identified in service procedures. DO NOT use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage fastener. Use correct tightening sequence and specifications when installing fasteners in order to avoid damage to part and systems.

DOOR MODULE

Note. This procedure is for all doors.

1. Remove door trim panel. See «DOOR TRIM PANEL»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-trim-panel).
2. Disconnect door module harness connectors. Release tabs from top and bottom from door module. (Scheme 7) Remove door module. To install, reverse removal procedure. Program window motor procedure. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode).

Scheme 7

DOOR TRIM PANEL

Note. This procedure is for all doors.

Remove inside door handle trim plate, and remove hidden fastener. (Scheme 8) Near center of trim panel lift flap inside pull handle opening, and remove 2 fasteners. (Scheme 9) Remove 2 lower trim panel fasteners. (Scheme 10) Using Door Trim Pad and Garnish Clip Remove (J-38778), release 8 trim panel push fasteners. (Scheme 11) Lift up and gently pull out slightly on trim panel to access door latch cable. Disconnect door latch cable from inside door handle. Disconnect harness connector. Remove door trim panel from door, and set aside. To install, reverse removal procedure.

Scheme 8

Scheme 9

Scheme 10

Scheme 11

WINDOW SWITCH ASSEMBLY

Note. This procedure is for all doors.

Note. Retainer clip must be fully disengaged before switch plate is removed. Damage to switch plate could result.

Insert a flat-bladed tool under rear edge of front window switch plate. (Scheme 12)or (Scheme 13). Push tool firmly towards switch plate, in order to disengage retainer. Lift up on rear of switch plate in order to remove switch assembly from door trim panel. Disconnect harness connectors. (Scheme 14)or (Scheme 15). Remove switch assembly. Remove appropriate switch from switch plate by disengaging side snap walls with small flat bladed tool. To install, reverse removal procedure.

Scheme 12

Scheme 13

Scheme 14

Scheme 15

WINDOW MOTOR REGULATOR

Note. Window must be in full UP position.

Note. This procedure is for all doors.

Removal

1. Remove door trim panel. See «DOOR TRIM PANEL»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-trim-panel). Remove door control module. See «DOOR MODULE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__door-module). Remove retainers and remove water shield. (Scheme 16) Connect window switch and door module. Using window switch, raise window to up position. Secure in place with tape.
2. Loosen window clamp fasteners. Lower regulator clamps to full down position. Remove retainer bolts from window. (Scheme 17) Disconnect window motor harness connector. Remove window motor regulator.

Scheme 16

Scheme 17

Identifying Rear Door Water Shield & Retainers (Other Rear Door Similar). Scheme 18

Scheme 19

Installation

1. Install window motor into door.
2. Locate captured fasteners (2) into keyhole slots. (Scheme 19)
3. Install remaining window motor fasteners. Tight fasteners to 80 INCH lbs (9 N.m).
4. Connect window motor harness connector.
5. Carefully raise window regulator clamps to full up position, engaging window.
6. Remove tape from window.
7. Complete the following to properly adjust window: Lower window to about 2". Seat window fully rearward against center pillar. Adjust window forward 5/64-1/8" (2-3 mm). Raise window to full up position.
8. Set glass with clamp fasteners. Tighten window clamp fasteners to 93 INCH lbs (10.5 N.m).
9. Disconnect window switch and door module harness connectors.
10. Install water deflector.
11. Install door module.
12. Install door trim panel.
13. Perform window motor programming procedure. See «WINDOW MOTOR - EXPRESS MODE»(/cadillac/seville/v-1998-2004/remont/windows/#power-window-system__window-motor-express-mode) under PROGRAMMING.

See also:
• WINDOW MOTOR REGULATOR
• SELF-DIAGNOSTIC SYSTEM
• TEST PROCEDURES
• DIAGNOSTIC TROUBLE CODE DEFINITIONS
• DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK
• PRELIMINARY INSPECTION
• DOOR MODULE
• WINDOW MOTOR - EXPRESS MODE
• WINDOW SWITCH ASSEMBLY
• CODE ENABLE CRITERIA
• A
• B
• C
• D
• E
• REAR WINDOW LOCK-OUT FEATURE
• DOOR TRIM PANEL