Acura RL. Manual - part 537

Fig. 4: Identifying Passenger's Under-Dash Fuse/Relay Box Terminals 
Courtesy of AMERICAN HONDA MOTOR CO., INC.

A

1

1

Engine compartment wire harness (see ENGINE 
COMPARTMENT WIRE HARNESS (RIGHT BRANCH) )

B

2

10

Engine compartment wire harness (see ENGINE 
COMPARTMENT WIRE HARNESS (RIGHT BRANCH) )

C

9

5

Right side wire harness (see RIGHT SIDE WIRE HARNESS 
(FRONT BRANCH) )

D

6

17

Dashboard wire harness A (see DASHBOARD WIRE 
HARNESS A (RIGHT BRANCH) )

E

11

14

Dashboard wire harness A (see DASHBOARD WIRE 
HARNESS A (RIGHT BRANCH) )

Fuel fill door open 
relay

5

4

 

F

7

8

Right side wire harness (see RIGHT SIDE WIRE HARNESS 
(FRONT BRANCH) )

G

8

14

Right side wire harness (see RIGHT SIDE WIRE HARNESS 
(FRONT BRANCH) )

H

10

3

Dashboard wire harness A (see DASHBOARD WIRE 
HARNESS A (RIGHT BRANCH) )

J

3

13

Engine compartment wire harness (see ENGINE 
COMPARTMENT WIRE HARNESS (RIGHT BRANCH) )

Headlight washer 
relay

(1)

12

4

 

Seat heater relay

4

4

 

Throttle actuator 
control relay

13

4

 

(1)

Canada models

 

2007 Acura RL 

2005-08 ELECTRICAL Fuse/Relay Boxes - RL

  

me 

 

Friday, June 05, 2009 2:41:06 PM

Page 5 

© 2005 Mitchell Repair Information Company, LLC. 

AUXILIARY UNDER-DASH RELAY HOLDER

AUXILIARY UNDER-DASH RELAY HOLDER REFERENCE 

Fig. 5: Identifying Auxiliary Under-Dash Relay Holder Terminals 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

AUXILIARY UNDER-DASH RELAY BOX 

AUXILIARY UNDER-DASH RELAY BOX REFERENCE 

Fig. 6: Identifying Auxiliary Under-Dash Relay Box Terminals 
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Socket

Ref Terminal

Connects to

Starter cut 
relay 1

1

4

Engine compartment wire harness (see ENGINE COMPARTMENT 
WIRE HARNESS (LEFT BRANCH) )

Socket

Ref Terminal

Connects to

ACC cut 
relay

3

5

Dashboard wire harness B (see DASHBOARD WIRE HARNESS B ('05 
MODEL) )

(1)

 

Dashboard Wire Harness A (See DASHBOARD WIRE HARNESS A 
(AROUND THE STEERING COLUMN) ('06-08 MODELS) )

(2)

Ig2 Cut 
Relay

2

5

Dashboard Wire Harness B (See DASHBOARD WIRE HARNESS B ('05 
MODEL) )

(1)

 

Dashboard Wire Harness A (See DASHBOARD WIRE HARNESS A 
(AROUND THE STEERING COLUMN) ('06-08 MODELS) )

(2)

(1)

'05 Model

(2)

'06-08 Models

 

2007 Acura RL 

2005-08 ELECTRICAL Fuse/Relay Boxes - RL

  

me 

 

Friday, June 05, 2009 2:41:06 PM

Page 6 

© 2005 Mitchell Repair Information Company, LLC. 

2005-08 ACCESSORIES AND EQUIPMENT

Gauges - RL 

COMPONENT LOCATION INDEX 

Fig. 1: Identifying Gauges Component Location (1 Of 2) 
Courtesy of AMERICAN HONDA MOTOR CO., INC.

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Gauges - RL

  

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Gauges - RL

  

me 

 

Friday, June 05, 2009 3:33:40 PM

Page 1 

© 2005 Mitchell Repair Information Company, LLC. 

me 

 

Friday, June 05, 2009 3:33:44 PM

Page 1 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 2: Identifying Gauges Component Location (2 Of 2) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

SELF-DIAGNOSTIC FUNCTION 

The gauge control module has a self-diagnostic function. 



The beeper drive circuit check.  



The indicator drive circuit check.  



The switch input test.  



The LCD segments check.  



The gauges drive circuit check (speedometer, tachometer, fuel gauge, coolant temperature gauge).  



The communication line check (of the body-controller area network (B-CAN) communication line 
and the fast-controller area network (F-CAN) communication line between the gauges).  

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Gauges - RL

  

me 

 

Friday, June 05, 2009 3:33:40 PM

Page 2 

© 2005 Mitchell Repair Information Company, LLC.