GW
GW
GW
GW Power
Power
Power
Power Window
Window
Window
Window
- - 138 - -
Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Testing
Testing
Testing
Testing
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
1. All the door power windows cannot operate.
Step Operation Method
Yes
No
1
Check if F31 50A fuse of engine compartment fuse block, F29 15A fuse, F7
10A fuse, F12 10A fuse of meter fuse block are disconnected.
Go to Step 8 Go to Step 2
2
Check if the power supply for ETACS is normal
①
Turn the ignition switch off and the voltage between Terminal 10 of
ETACS connector M36 and ground is the battery voltage.
②
Turn the ignition switch on and the voltage between Terminal 18, Terminal
9 of ETACS connector M37 and ground is the battery voltage.
Go to Step 3 Go to Step 9
3
Check if the ground for ETACS is normal
Turn the ignition switch off and disconnect the ETACS connector. Terminal
19 of connector M36 and ground are conductive.
Go to Step 4 Go to Step 10
4
Check if the operation of power window relay is normal.
①
Terminal 2 and 4 of relay are constant power supply.
② After the ignition switch is turned on, the voltage for Terminal 1 of relay is
the battery voltage.
Go to Step 7 Go to Step 5
5
Turn the ignition switch on and check if Terminal 3 of power window relay
grounds.
Go to Step 11 Go to Step 6
6
Check if the harnesses of ETACS and power window relay are conductive.
Terminal 15 of ETACS connector M36 should be conductive with Terminal 3
of relay.
Go to Step 13 Go to Step 14
7
Check if the power supply and ground wire for left front door power window
switch are normal
① Turn the ignition switch on and the battery voltage exists between Terminal
11 of left front door power window switch connector D04 and ground.
②
Terminal 10 of left front door power window switch connector D04 and
ground are conductive.
Go to Step 12 Go to Step 15
8
After servicing the fault due to circuit, replace the fuse. Is the fault
eliminated?
Go to Step 2
9
Repair the open or short power supply circuit for ETACS . Is the fault
eliminated?
Go to Step 3
10 Check if the ground circuit for ETACS is open. Go to Step 4
11
Repair the circuit fault and replace the power window relay. Is the fault
eliminated?
Go to Step 7
12 Replace the left front door power window switch.
13 Replace the ETACS . Go to Step 7
14
Repair the connecting circuit between ETACS and power window. Is the fault
eliminated?
Go to Step 13
15
Repair the harnesses of left front door power window switch. Is the fault
eliminated?
Go to Step 12
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