Acura RL. Manual - part 371



Do not use wires or harnesses with broken insulation. Replace them or repair them by wrapping the 
break with electrical tape.  



After installing parts, make sure that no wires are pinched under them.  



When using electrical test equipment, follow the manufacturer's instructions and those described in 
this manual.  



If possible, insert the probe of the tester from the wire side (except waterproof connector). 

Fig. 11: Inserting Probe Of Tester Wire Side Connector 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 



Use back probe adaptor 07TAZ-001020A. 

Fig. 12: Identifying Back Probe Adaptor 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 



Refer to the instructions in the Honda Terminal Kit for identification and replacement of connector 
terminals.  

FIVE-STEP TROUBLESHOOTING 

1. Verify The Complaint 

Turn on all the components in the problem circuit to verify the clients complaint. Note the symptoms. 
Do not begin disassembly or testing until you have narrowed down the problem area. 

2. Analyze The Schematic 

Look up the schematic for the problem circuit. Determine how the circuit is supposed to work by 
tracing the current paths from the power feed through the circuit components to ground. If several 
circuits fail at the same time, the fuse or ground is a likely cause. 

Based on the symptoms and your understanding of the circuit operation, identify one or more possible 
causes of the problem. 

3. Isolate The Problem By Testing The Circuit 

Make circuit tests to check the diagnosis you made in step 2. Keep in mind that a logical, simple 
procedure is the key to efficient troubleshooting. Test for the most likely cause of failure first. Try to 

 

2007 Acura RL 

2007-08 ELECTRICAL Body Electrical - RL

  

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make tests at points that are easily accessible.

4. Fix The Problem 

Once the specific problem is identified, make the repair. Be sure to use proper tools and safe 
procedures. 

5. Make Sure The Circuit Works 

Turn on all components in the repaired circuit in all modes to make sure you've fixed the entire 
problem. If the problem was a blown fuse, be sure to test all of the circuits on the fuse. Make sure no 
new problems turn up and the original problem does not recur. 

WIRE COLOR CODES 

The following abbreviations are used to identify wire colors in the circuit schematics: 

WIRE COLOR CODES REFERENCE 

The wire insulation has one color or one color with another color stripe. The second color is the stripe. 

Fig. 13: Identifying Wire Color With Color Stripe 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

HOW TO CHECK FOR DTCS WITH THE HONDA DIAGNOSTIC SYSTEM (HDS) 

1. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (A) located under the 

WHT

White

YEL

Yellow

BLK

Black

BLU

Blue

GRN

Green

RED

Red

ORN

Orange

PNK

Pink

BRN

Brown

GRY

Gray

PUR

Purple

LT BLU

Light Blue

LT GRN

Light Green

 

2007 Acura RL 

2007-08 ELECTRICAL Body Electrical - RL

  

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© 2005 Mitchell Repair Information Company, LLC. 

driver's side of the dashboard. 

Fig. 14: Identifying Data Link Connector Location 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

2. Select the TEST MODE MENU and check for Diagnostic Trouble Code (DTCs), and note them. 

Refer to the Troubleshooting Index and begin the appropriate troubleshooting procedure.  

REMOTE REGISTRATION AND REPROGRAMMING FOR KEYLESS 
ACCESS SYSTEM AND IMMOBILIZER SYSTEM 

KEYLESS ACCESS SYSTEM 

Registration by the HDS is necessary when: 



Any of the remotes (A) are replaced.  



All of the remotes (A) are replaced.  



A new remote (A) is added.  



New remotes (A) are added.  



The keyless access control unit (B) is replaced.  



The ignition switch control unit (C) is replaced.  



The imoes unit (D) is replaced.  



Deleting the registration of a lost remote(s).  



The PCM is replaced. 

NOTE:

For specific operations, refer to the user's manual that came with the 
Honda Diagnostic System (HDS).

NOTE:

The keyless access control unit can store up to six remotes.

 

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Fig. 15: Identifying Keyless Access System Components 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

IMMOBILIZER SYSTEM 

Registration by the HDS is necessary when: 



A built-in key (A) is added or replaced.  



The immobilizer control unit-receiver (B) is replaced.  



The imoes unit (C) is replaced.  



The PCM is replaced. 

Fig. 16: Identifying Immobilizer System Components 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

REGISTRATION 

1. Turn the ignition switch ON (II) with the built-in key.  

2. Connect the HDS to the data link connector.  

3. Select KEYLESS ACCESS or IMMOBILIZER (depending on the part replaced)* from the SYSTEM 

SELECT menu. 

* : If registering the imoes unit, select IMMOBILIZER from the SYSTEM SELECT menu. (This is 
not necessary to register as a keyless access composed part.) 

4. Enter the TEST MODE menu, then select the suitable menu from the HDS indications.  

NOTE:

The immobilizer control unit-receiver can store up to six built-in keys.

 

2007 Acura RL 

2007-08 ELECTRICAL Body Electrical - RL

  

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© 2005 Mitchell Repair Information Company, LLC.