DESCRIPTION
Power window system uses a permanent magnet motor to operate each window. Motor operation is controlled by a master switch assembly alone or in combination with individual window switches. Window is lifted or lowered depending on polarity of current applied to window motor.
Some models use a control module to access an express mode of operation. When left front window switch is held in down position for .3 seconds, module activates relay to apply full battery voltage to window motor. This provides current to quickly and fully open window.
OPERATION
When ignition switch is in RUN position, power for window system is supplied to master switch assembly through fuse block 30-amp circuit breaker. When any master switch is operated, power is applied through related window switch to motor, driving drive motor in either direction to either raise or lower window. Each motor is protected by an internal circuit breaker which will reset after switch is released (voltage removed).
SYSTEM CHECK
- Before beginning system check, turn ignition on. Ensure there is battery voltage from PWR WDO (30-amp) circuit breaker, located in fuse block. Ensure master switch ground circuit is complete.
- With all windows closed, turn ignition switch to RUN position. Briefly (less than .3 second) press left front window switch down. Window should descend a small distance, then stop.
- Press left front window switch down and release (more than .3 second). Window should descend completely (express mode).
- Press left front window switch up. Window should raise as long as switch is held up, then stop when switch is released (no express). Repeat step 3). While window is moving down in express mode, press switch upward. Window should stop express decent.
- Lower and raise other windows from master switch. All windows should operate quietly and smoothly through full range of travel.
- Lower and raise each window from window switches. All windows should operate quietly and smoothly through full range of travel. Note any symptoms and proceed to SYMPTOM DIAGNOSIS.
None Of The Windows Operate
Go to TEST 1 under TESTING.
Left Front Window Does Not Operate
Go to TEST 2 under TESTING.
Right Front Window Does Not Operate
Go to TEST 3 under TESTING.
Left Rear Window Does Not Operate
Go to TEST 4 under TESTING.
Right Rear Window Does Not Operate
Go to TEST 5 under TESTING.
Window(s) Do Not Operate From Individual Switch But Operate From Master Switch
Go to TEST 6 under TESTING.
Left Front Window Operates But With No Express Mode
On vehicles without power window control module, replace master switch assembly. On vehicles with power window control module, check for open in power feed to module (Pink wire) circuit. If circuit is okay, replace window control module.
Window(s) Operate From Individual Switches But Do Not Operate From Master Switch
Replace Master Switch Assembly.
TESTING
Note. To identify specific circuits, see WIRING DIAGRAMS section.
TEST 1
- With ignition switch in RUN position, measure voltage at master switch Pink wire connector terminal. If battery voltage is present, go to step 2). If battery voltage is not present, repair open in Pink wire between PWR WDO (30-amp) circuit breaker and, master switch.
- Measure voltage between master switch Pink wire connector terminal and master switch Black wire (ground) connector terminal. If battery voltage is present, ensure connector is properly seated. If connector is okay, replace master switch. If battery voltage is not present, repair open in Black wire between master switch and ground.
TEST 2
- With ignition switch in RUN position, connect a test light between master switch Dark Blue wire connector terminal and Brown wire connector terminal (Brown/White on models with power window control module). Press master switch left window switch upward then downward.
- If light does not comes on in both directions, replace master switch. If light comes on in both directions, on models with control module, go to step 3). On models without control module, check for open in Dark Blue and Brown wires between master switch and left front window motor. If wires are okay, replace motor.
- Disconnect power window control module connector. Connect test light between master switch Pink wire connector terminal and ground. If light comes on, go to step 4). If light does not come on, repair open in Pink wire between master switch and PWR WDO circuit breaker (in fuse block).
- Connect test light between master switch Brown/White wire connector terminal and ground. Press left front window switch down. If light comes on, go to step 5). If light does not come on, repair open in Brown/White wire between master switch and power window control module.
- Connect test light between master switch Dark Blue wire connector terminal and ground. Press left front window switch up. If light comes on, go to step 6). If light does not come on, repair open in Dark Blue wire between master switch and power window control module.
- Reconnect power window control module. Disconnect left front power window motor electrical connector. Connect test light between motor wire harness Brown wire connector terminal and ground. Press left front window switch down. If light comes on, go to step 7). If light does not come on, check for open in Brown wire between power window control module and motor. If wire is okay, replace power window control module.
- Connect test light between motor wire harness Dark Blue wire connector terminal and ground. Press left front window switch up. If light comes on, replace left front power window motor. If light does not come on, repair open in Dark Blue wire between power window control module and motor.
Without Power Window Control Module
- With ignition switch in RUN position, connect a test light between master switch Dark Blue/White wire connector terminal and Tan wire connector terminal. Press master switch right window switch upward then downward.
- If light does not comes on in both directions, replace master switch. If light comes on in both directions, check for open in Dark Blue/White and Tan wires between master switch and right front window motor. If wires are okay, replace motor.
With Power Window Control Module
- Disconnect right front window switch connector. With ignition switch in RUN position, connect a test light between right front window switch Dark Blue/White wire connector terminal and Tan wire connector terminal. Press right front window switch (on master switch) upward then downward.
- If light comes on in both directions, go to step 3). If light does not comes on in both directions, check for open in Dark Blue/White and Tan wires between master switch and right front window switch. If wires are okay, replace master switch.
- Connect a jumper wire between right front window switch connector Dark Blue/White wire and Dark Blue wire (going to right front window motor). Connect a jumper wire between right front window switch connector Tan wire and Brown wire.
- Press right front window switch (on master switch) up and down. If window motor operates, replace right front window switch. If window motor does not operate, check for open in Dark Blue and Brown wires between right front window switch and right front window motor. If wires are okay, replace motor.
TEST 4
- Disconnect left rear window switch connector. With ignition switch in RUN position, connect a test light between left rear window switch Dark Green wire connector terminal and Purple wire connector terminal. Press left rear window switch (on master switch) upward then downward.
- If light comes on in both directions, go to step 3). If light does not comes on in both directions, check for open in Dark Green and Purple wires between master switch and left rear window switch. If wires are okay, replace master switch.
- Connect a jumper wire between left rear window switch connector Dark Green wire and Dark Blue wire (going to left rear window motor). Connect a jumper wire between left rear window switch connector Purple wire and Brown wire.
- Press left rear window switch (on master switch) up and down. If window motor operates, replace left rear window switch. If window motor does not operate, check for open in Dark Blue and Brown wires between left rear window switch and left rear window motor. If wires are okay, replace motor.
TEST 5
- Disconnect right rear window switch connector. With ignition switch in RUN position, connect a test light between right rear window switch Light Green wire connector terminal and Purple/White wire connector terminal. Press right rear window switch (on master switch) upward then downward.
- If light comes on in both directions, go to step 3). If light does not comes on in both directions, check for open in Light Green and Purple/White wires between master switch and right rear window switch. If wires are okay, replace master switch.
- Connect a jumper wire between right rear window switch connector Light Green wire and Dark Blue wire (going to right rear window motor). Connect a jumper wire between right rear window switch connector Purple/White wire and Brown wire.
- Press right rear window switch (on master switch) up and down. If window motor operates, replace right rear window switch. If window motor does not operate, check for open in Dark Blue and Brown wires between right rear window switch and right rear window motor. If wires are okay, replace motor.
TEST 6
- Disconnect suspect individual switch connector. Ensure passenger window lockout switch is off. With ignition switch in RUN position, connect a test light between suspect window switch Dark Blue wire (from master switch) connector terminal and ground.
- If light comes on, replace suspect individual switch. If light does not comes on, check for open in Dark Blue wire between master switch and suspect switch. If wire is okay, replace master switch.
Removal
- Raise window to full up position and secure in place. Remove door panel covering and insulator. Window may be disengaged from regulator and removed from vehicle. If motor is held to door and regulator with nuts and bolts, remove nuts and bolts as necessary.
- If motor is held to door and regulator with rivets, punch out center of regulator-to-door rivets and drill out rivets using a 1/4" drill bit. Disconnect window from regulator.
- Move regulator and motor assembly rearward to access motor-to-regulator rivets. Punch out center of motor-to-regulator rivets and drill out rivets using a 3/16" drill bit. On all types, disconnect electrical connector and remove motor from door.
Installation
To install, reverse removal procedure. On models attached with rivets, use Rivet Installer (J-34940) with 3/16" rivets for motor-to-regulator attachment and 1/4" rivets for regulator-to-door attachment.
Removal & Installation
Using a thin-blade screwdriver, probe between switch and door panel for spring clip (if equipped). Press down on clip to release switch and pry outward. Disconnect electrical connector and remove switch. To install, reverse removal procedure.
