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 (Gray wire on models with power window control module). Press left front window switch (on master switch) up then down.
If light does not come on in both directions, replace master switch. If light comes on in both directions, on models with power window control module, go to step 3). On models without power window 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 a test light between master switch Brown wire connector terminal and ground. If light comes on, go to step 4). If light does not come on, repair open in Brown wire between POWER WINDOW (30-amp) circuit breaker and master switch.
Connect a test light between master switch Gray wire connector terminal and ground. Press left front window switch (on master switch) down. If light comes on, go to step 5). If light does not come on, repair open in Gray wire between master switch and power window control module.
Connect a test light between master switch Dark Blue wire connector terminal and ground. Press left front window switch (on master 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 window motor connector. Connect a test light between left front window motor Brown wire connector terminal and ground. Press left front window switch (on master 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 left front window motor. If wire is okay, replace power window control module.
Connect a test light between left front window motor Dark Blue wire connector terminal and ground. Press left front window switch (on master 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 left front window motor.