Passenger's Side Power Window Does Not Work

Trouble causes:

Front regulator & motor assembly (passenger's side) power supply circuit failure
Front regulator & motor assembly (passenger's side) failure
Power window main switch failure
Power window sub-switch malfunction
LIN communication error
Body integrated unit malfunction

Wiring diagram:

Power window system Refer to WIRING SYSTEM>POWER WINDOW SYSTEM>WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Refer to POWER WINDOW (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

CHECK BATTERY .
Check the battery. Refer to STARTING/CHARGING SYSTEMS (H4DO)>BATTERY . Refer to STARTING/CHARGING SYSTEMS (H4DOTC)>BATTERY .

Is the battery OK?

Yes : Go to 2.

No : Charge or replace the battery.
CHECK DTC .
Read the DTC of [Power Window (Passenger)] using the Subaru Select Monitor. Refer to POWER WINDOW (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

Are any DTCs displayed? (Current malfunction)

Yes : Perform the diagnosis for the displayed DTCs. Refer to POWER WINDOW (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .

No : Go to 3.
CHECK [Window Lock Switch Signal] (DATA MONITOR) .
1. Turn the ignition switch to ON.
2. Using the Subaru Select Monitor. check the following items in the [Data monitor] of [Power Window (Passenger)]. Refer to POWER WINDOW (DIAGNOSTICS)>DATA MONITOR .
  - Window Lock Switch Signal
Is [Unlock] displayed?

Yes : Go to 4.

No : Unlock the window lock to operate.
CHECK [Power Supply Voltage] (DATA MONITOR) .
1. Turn the ignition switch to ON.
2. Using the Subaru Select Monitor. check the following items in the [Data monitor] of [Power Window (Passenger)]. Refer to POWER WINDOW (DIAGNOSTICS)>DATA MONITOR .
  - Power Supply Voltage
Is the displayed voltage approximately 10.0 [V] or more?

Yes : Go to 5.

No : Replace the front regulator & motor assembly (passenger's side). Refer to GLASS/WINDOWS/MIRRORS>FRONT REGULATOR AND MOTOR ASSEMBLY .
CHECK [Operation Enable Signal] (DATA MONITOR) .
Using the Subaru Select Monitor. check the following items in the [Data monitor] of [Power Window (Passenger)]. Refer to POWER WINDOW (DIAGNOSTICS)>DATA MONITOR .
- Operation Enable Signal
Is [ON] displayed?

Yes : Go to 6.

No : Inspect the body integrated unit. Refer to BODY CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

If no fault is found in the body integrated unit, replace the front regulator & motor assembly (passenger's side). Refer to GLASS/WINDOWS/MIRRORS>FRONT REGULATOR AND MOTOR ASSEMBLY .
CHECK POWER WINDOW SUB-SWITCH .
Operate the power window sub-switch and roll down the window to the full open position. Alternatively, operate the power window sub-switch and roll up the window to the full close position.

Does the window roll up and down?

Yes : Go to 7.

No : Perform unit inspection of power window sub switch. Refer to GLASS/WINDOWS/MIRRORS>POWER WINDOW CONTROL SWITCH .
CHECK HARNESS (OPEN CIRCUIT) .
1. Disconnect the body integrated unit connector.
2. Disconnect the power window main switch connector.
3. Disconnect the power window sub-switch connector.
4. Disconnect the front regulator & motor assembly (passenger's side) connector.
5. Using a tester, measure the resistance between the body integrated unit connector, power window main switch connector and power window sub-switch and the front regulator & motor assembly (passenger's seat) connector.
  Connector & terminal
  
  (i83) No. 2 - (Df51) No. 7:
  
  (Df34) No. 13 - (Df51) No. 7:
  
  (Df35) No. 1 - (Df51) No. 4:
  
  (Df35) No. 5 - (Df51) No. 6:
  
  (Df35) No. 6 - (Df51) No. 8:
Is the resistance less than 1 Ω?

Yes : Replace the front regulator & motor assembly (passenger's side). Refer to GLASS/WINDOWS/MIRRORS>FRONT REGULATOR AND MOTOR ASSEMBLY .

No : Repair the open circuit of harness between the body integrated unit connector, power window main switch connector and power window sub-switch and the front regulator & motor assembly (passenger's seat) connector.