Acura RL. Manual - part 737

obtained

A4

GRY

Driver's under-dash 
fuse/relay box connector 
X (39P) and right rear 
power window switch 
14P connector 
disconnected

Check for continuity between the 
A4 terminal and driver's under-
dash fuse/relay box connector X 
(39P) No. 15 terminal, and A4 
terminal and right rear power 
window switch 14P connector 
No. 2 terminal: 
There should be continuity.



Faulty 
passenger's 
under-dash 
fuse/relay box  



An open in the 
wire  

Check for continuity to ground: 

There should be no continuity.



Faulty 
passenger's 
under-dash 
fuse/relay box  



A short to ground 
in the wire  

B2

LT 

BLU Front passenger's power 

window switch in AUTO 
position

Check for continuity between the 
terminals: 
There should be continuity.



Faulty front 
passenger's 
power window 
switch  



An open in the 
wire  

A24

BLU

B2

LT 

BLU Front passenger's power 

window switch released

Check for continuity between the 
terminals: 
There should be no continuity.



Faulty front 
passenger's 
power window 
switch  



A short to ground 
in the wire  

A24

BLU

B13

GRY

Front passenger's power 
window switch in UP 
position

Check for continuity between the 
terminals: 
There should be continuity.



Faulty front 
passenger's 
power window 
switch  



An open in the 
wire  

A24

BLU

B13

GRY

Front passenger's power 
window switch released

Check for continuity between the 
terminals: 
There should be no continuity.



Faulty front 
passenger's 
power window 
switch  



A short to ground 
in the wire  

A24

BLU

B11

BRN

Front passenger's power 
window switch in 
DOWN position

Check for continuity between the 
terminals: 
There should be continuity.



Faulty front 
passenger's 
power window 
switch  



An open in the 
wire  

A24

BLU



Faulty front 

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Power Windows - RL

  

me 

 

Friday, June 05, 2009 3:20:28 PM

Page 52 

© 2005 Mitchell Repair Information Company, LLC. 

B11

BRN

Front passenger's power 
window switch released

Check for continuity between the 
terminals: 
There should no continuity.

passenger's 
power window 
switch  



A short to ground 
in the wire  

A24

BLU

B9

WHT

Under all conditions

Connect battery power to the A24 
terminal and ground the B9 
terminal. The LED should come 
on.



Faulty front 
passenger's 
power window 
switch  



Faulty LED  



An open in the 
wire  

A24

BLU

B10

RED

Front passenger's power 
window switch DOWN

Check for continuity between the 
terminals: 
There should be continuity 
between the B10 and A22 
terminals, and no continuity 
between the B10 and B12 
terminals.



Faulty front 
passenger's 
power window 
switch  



An open in the 
wire  



A short to ground 
in the wire  

B12

PNK

A22

PUR

B10

RED

Front passenger's power 
window switch in 
released

Check for continuity between the 
terminals: 
There should be continuity 
between the B10 and B12 
terminals, and no continuity 
between the B10 and A22 
terminals.



Faulty front 
passenger's 
power window 
switch  



An open in the 
wire  



A short to ground 
in the wire  

B12

PNK

A22

PUR

B1

LTGRN

Connect B8 and B1 
terminals with a jumper 
wire, and connect the B7 
terminal to body ground.

Check the front passenger's power 
window motor operation: 
The motor should run (the 
window should go down).



Blown No. 3 
(30A) fuse in the 
passenger's 
under-dash 
fuse/relay box  



Faulty front 
passenger's 
power window 
motor  



An open in the 
wire  

B7

BLU

Connect B8 and B7 
terminals with a jumper 
wire, and connect the B1 
terminal to body ground.

Check the front passenger's power 
window motor operation: 
The motor should run (the 
window should go up).



Blown No. 3 
(30A) fuse in the 
passenger's 
under-dash 
fuse/relay box  



Faulty front 
passenger's 

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Power Windows - RL

  

me 

 

Friday, June 05, 2009 3:20:28 PM

Page 53 

© 2005 Mitchell Repair Information Company, LLC. 

6. Reconnect the connectors to the front passenger's MPCS unit, and make these input tests at the 

connectors. 



If any test indicates a problem, find and correct the cause, then recheck the system.  



If all the input tests prove OK, the control unit must be faulty; replace the front passenger's 
MPCS unit and go to step 7.  

TEST CONDITION AND POSSIBLE CAUSE REFERENCE CHART 

power window 
motor  



An open in the 
motor  

Cavity Wire

Test condition

Test: Desired result

Possible cause if desired 

result is not obtained

A7

BLK Under all conditions

Measure the voltage to 
ground: 
There should be less than 
0.5 V.



Poor ground 
(G506)  



An open in the 
wire  

B14

BLK Under all conditions

Measure the voltage to 
ground: 
There should be less than 
0.5 V.



Poor ground 
(G506)  



An open in the 
wire  

A2

WHT Under all conditions

Measure the voltage to 
ground: 
There should be battery 
voltage.



Blown No. 15 
(40A) fuse in the 
under-hood 
fuse/relay box  



Blown No. 7 (10A) 
fuse in the driver's 
under-dash 
fuse/relay box  



Faulty passenger's 
under-dash 
fuse/relay box  



An open in the 
wire  

B8

GRN Under all conditions

Measure the voltage to 
ground: 
There should be battery 
voltage.



Blown No. 22 
(70A) fuse in the 
under-hood 
fuse/relay box  



Blown No. 3 (30A) 
fuse in the 
passenger's under-
dash fuse/relay box 



Faulty passenger's 
under-dash 
fuse/relay box  

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Power Windows - RL

  

me 

 

Friday, June 05, 2009 3:20:28 PM

Page 54 

© 2005 Mitchell Repair Information Company, LLC. 

7. Reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL 

UNIT ).  

LEFT REAR POWER WINDOW SWITCH INPUT TEST 

1. Turn the ignition switch OFF.  

2. Remove the left rear power window switch (see POWER WINDOW MASTER SWITCH 



An open in the 
wire  

B3

GRN Ignition switch ON (II)

Measure the voltage to 
ground: 
There should be battery 
voltage.



Faulty front 
passenger's MPCS 
unit  



An open in the 
wire  

B6

YEL Under all conditions

Measure the continuity to 
ground: 
There should be 
continuity.



Poor ground 
(G506)  



Faulty front 
passenger's MPCS 
unit  



An open in the 
wire  

B5

BLU

Ignition switch ON (II) and front 
passenger's power window motor 
runs by connecting the B8 and B1 
terminals with a jumper wire, and 
connect the B7 terminal to body 
ground.

Measure the voltage 
between the B5 and B6 
terminals: 
There should be 0-about 
5 V-0- about 5 V 
repeatedly (a digital 
voltmeter reads about 2.5 
V while the window 
moves).



Blown No. 3 (30A) 
fuse in the 
passenger's under-
dash fuse/relay box 



Faulty front 
passenger's MPCS 
unit  



Faulty front 
passenger's power 
window motor  



An open in the 
wire  

B4

ORN

Ignition switch ON (II) and front 
passenger's power window motor 
runs by connecting the B8 and B1 
terminals with a jumper wire, and 
connect the B7 terminal to body 
ground.

Measure the voltage 
between the B4 and B6 
terminals: 
There should be 0-about 
5 V-0- about 5 V 
repeatedly (a digital 
voltmeter reads about 2.5 
V while the window 
moves).



Blown No. 3 (30A) 
fuse in the 
passenger's under-
dash fuse/relay box 



Faulty front 
passenger's MPCS 
unit  



Faulty front 
passenger's power 
window motor  



An open in the 
wire  

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Power Windows - RL

  

me 

 

Friday, June 05, 2009 3:20:28 PM

Page 55 

© 2005 Mitchell Repair Information Company, LLC.