Acura RL. Manual - part 406

PROBLEM SYMPTOM CHART 

While monitoring cruise control inputs, flex their circuits, and note if 
any of the test results change.

Signal to be 

tested

Test condition

Parameter: Desired result

Possible cause if result is not 

obtained

Brake switch 
signal

Brake pedal 
pressed, then 
released

CRUISE BRAKE SW should 
indicate OFF when the brake pedal 
is pressed and ON when the brake 
pedal is released.



Faulty brake pedal 
position switch  



Blown No. 18 (15A) 
fuse in the driver's 
under-dash fuse/relay 
box  



An open in the wire 
between the powertrain 
control module (PCM) 
and the brake pedal 
position switch  



A wire shorted to 
ground between the 
PCM and the brake 
pedal position switch  

Transmission 
range switch 
signal

Shift lever in D 
or D3

SHIFT/CLUTCH SW should 
indicate OFF in P, R, and N and 
ON in D and D3.



Faulty transmission 
range switch  



An open in the wire 
between the PCM and 
the transmission range 
switch  



A wire shorted to 
ground between the 
PCM and the 
transmission range 
switch  



Poor ground G101 and 
G102  

Cruise control 
main switch 
signal

Cruise control 
main switch ON 
and OFF

CRUISE CONTROL MAIN SW 
should indicate ON when the cruise 
control main switch is turned ON 
and OFF when the cruise control 
main switch is turned OFF.



Faulty cruise control 
combination switch  



An open in the wire 
between the gauge 
control module and the 
cruise control 
combination switch  



A wire shorted to 
ground between the 
gauge control module 
and the cruise control 
combination switch  



An open in the wire 

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Cruise Control - RL

  

me 

 

Friday, June 05, 2009 3:38:58 PM

Page 5 

© 2005 Mitchell Repair Information Company, LLC. 

CRUISE CONTROL COMBINATION SWITCH TEST/REPLACEMENT 

There are SRS components located in this area. Review the SRS component locations (see COMPONENT 
LOCATION INDEX ), and the precautions and procedures (see PRECAUTIONS AND 
PROCEDURES ), in the SRS before doing repairs or service. 

1. Remove the driver's airbag (see DRIVER'S AIRBAG REPLACEMENT ).  

2. Disconnect the connectors, then remove the switch. 

between the cruise 
control combination 
switch and ground  

Set switch 
signal

Set/decel switch 
pressed and 
released

CRUISE CONTROL SET SW 
should indicate ON when the 
set/decel switch is pressed and OFF 
when the set/decel switch is 
released.



Faulty cruise control 
combination switch  



An open in the wire 
between the gauge 
control module and the 
cruise control 
combination switch  



A wire shorted to 
ground between the 
gauge control module 
and the cruise control 
combination switch  

Resume switch 
signal

Resume/accel 
switch pressed 
and released

CRUISE CONTROL RESUME 
SW should indicate ON when the 
resume/accel switch is pressed and 
OFF when the resume/accel switch 
is released.



Faulty cruise control 
combination switch  



An open in the wire 
between the gauge 
control module and the 
cruise control 
combination switch  



A wire shorted to 
ground between the 
gauge control module 
and the cruise control 
combination switch  

Cancel switch 
signal

Cancel switch 
pressed and 
released

CRUISE CONTROL CANCEL SW 
should indicate ON when the cancel 
switch is pressed and OFF when the 
cancel switch is released.

Faulty cruise control 
combination switch

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Cruise Control - RL

  

me 

 

Friday, June 05, 2009 3:38:59 PM

Page 6 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 3: Identifying Cruise Control Combination Switch Connector And Terminals 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

3. Check for continuity between the terminals in each switch position (see Fig. 4). 



If there is continuity, and it matches the table, but switch failure occurred on the cruise control 
input test, check and repair the wire harness on the switch circuit.  



If there is no continuity in one or both positions, replace the switch. 

Fig. 4: Checking For Continuity Between Terminals In Each Switch Position 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

4. Check for continuity between the terminals (see Fig. 5). 



If there is continuity, and it matches the table, check and repair the wire harness on the switch 
circuit.  



If there is no continuity in one or more positions, replace the switch. 

Fig. 5: Checking for continuity between terminals

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Cruise Control - RL

  

me 

 

Friday, June 05, 2009 3:38:59 PM

Page 7 

© 2005 Mitchell Repair Information Company, LLC. 

Courtesy of AMERICAN HONDA MOTOR CO., INC.

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Cruise Control - RL

  

me 

 

Friday, June 05, 2009 3:38:59 PM

Page 8 

© 2005 Mitchell Repair Information Company, LLC.