Acura RL. Manual - part 129

Fig. 120: Identifying Left Side Wire Harness 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

5. Connect the SRS inflator simulator (2 ohms connectors) and simulator lead F to the left side wire 

harness.  

6. Reconnect the negative cable to the battery.  

7. Clear the DTC memory.  

8. Read the DTC (see GENERAL TROUBLESHOOTING INFORMATION ). 

Is DTC 21-9x indicated?  

YES - Go to step 9. 

NO - Short to ground in the driver's seat belt tensioner; replace the driver's seat belt (see FRONT 
SEAT BELT REPLACEMENT ). 

9. Turn the ignition switch OFF. Disconnect the negative cable from the battery, then wait for 3 minutes. 

10. Disconnect the front passenger's seat belt tensioner connector (see step 6 ).  

11. Disconnect SRS unit connector B (28P) from the SRS unit (see step 7 ).  

12. Disconnect the simulator lead from the left side wire harness.  

13. Measure the resistance between the No. 1 terminal of SRS unit connector B (28P) and body ground, 

and between the No. 2 terminal and body ground. There should be an open circuit or at least 1 M 
ohms. 

Fig. 121: Measuring Resistance Between No. 1 [No. 2] Terminal Of SRS Unit Connector B (28P) 
And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is the resistance as specified?  

YES - Faulty SRS unit or poor connection at SRS unit connector B (28P) and the SRS unit. Check the 
connection; if the connection is OK, replace the SRS unit (see SRS UNIT REPLACEMENT ). 

NO - Go to step 14. 

14. Disconnect right side wire harness 16P connector C604 (A) from the left side wire harness connector 

C604 (B). 

 

2007 Acura RL 

2005-08 RESTRAINTS SRS (Supplemental Restraint System) - RL

  

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Page 100  © 2005 Mitchell Repair Information Company, LLC. 

'05 model  

Fig. 122: Identifying Right Side Wire Harness 16P Connector C604 And Left Side Wire Harness 
Connector C604 - '05 Model 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

'06-08 models  

Fig. 123: Identifying Right Side Wire Harness 16P Connector C604 And Left Side Wire Harness 
Connector C604 - '06-08 Models 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

15. Measure the resistance between the No. 3 [No. 4] terminal of the right side wire harness 16P 

connector C604 and body ground, and between the No. 4 [No. 5] terminal and body ground. There 
should be an open circuit or at least 1Mohms. 

:'06-08 models 

 

2007 Acura RL 

2005-08 RESTRAINTS SRS (Supplemental Restraint System) - RL

  

me 

 

Friday, June 05, 2009 2:21:56 PM

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Fig. 124: Measuring Resistance Between No. 3 [No. 4] Terminal Of Right Side Wire Harness 
16P Connector C604 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Fig. 125: Measuring Resistance Between No. 4 [No. 5] Terminal Of Right Side Wire Harness 
16P Connector C604 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is the resistance as specified?  

YES - Short to ground in the left side wire harness; replace the left side wire harness. 

NO - Short to ground in the right side wire harness; replace the right side wire harness. 

DTC 22-1X ("X" CAN BE 0 THRU 9 OR A THRU F): OPEN IN FRONT PASSENGER'S SEAT 
BELT TENSIONER; DTC 22-2X ("X" CAN BE 0 THRU 9 OR A THRU F): INCREASED 
RESISTANCE IN FRONT PASSENGER'S SEAT BELT TENSIONER 

Special Tools Required  



SRS inflator simulator 07SAZ-TB4011A  



SRS simulator lead F 07XAZ-SZ30100  

NOTE:

Before doing this troubleshooting procedure, review SRS Precautions and 
Procedures (see PRECAUTIONS AND PROCEDURES ) and General 
Troubleshooting Information (see GENERAL TROUBLESHOOTING 
INFORMATION ).

 

2007 Acura RL 

2005-08 RESTRAINTS SRS (Supplemental Restraint System) - RL

  

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Friday, June 05, 2009 2:21:56 PM

Page 102  © 2005 Mitchell Repair Information Company, LLC. 

1. Clear the DTC memory (see CLEAR THE DTC MEMORY WITH THE HDS ).  

2. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and 

then goes off. 

Does the SRS indicator stay on, and is DTC 22-1x or 22-2x indicated?  

YES - Go to step 3. 

NO - Intermittent failure, the system is OK at this time. Go to TROUBLESHOOTING 
INTERMITTENT FAILURES . If another DTC is indicated, troubleshoot the DTC. 

3. Turn the ignition switch OFF. Disconnect the negative cable from the battery, then wait for 3 minutes. 

4. Disconnect the right side wire harness 4P connector (A) from the front passenger's seat belt tensioner. 

Fig. 126: Identifying Right Side Wire Harness 4P Connector 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

5. Connect the SRS inflator simulator (2 ohms connectors) and simulator lead F to the right side wire 

harness.  

6. Reconnect the negative cable to the battery.  

7. Clear the DTC memory.  

8. Read the DTC (see GENERAL TROUBLESHOOTING INFORMATION ). 

Is DTC 22-1x or 22-2x indicated?  

YES - Go to step 9. 

NO - Open or increased resistance in the front passenger's seat belt tensioner; replace the front 
passenger's seat belt (see FRONT SEAT BELT REPLACEMENT ). 

9. Turn the ignition switch OFF. Disconnect the negative cable from the battery, then wait for 3 minutes. 

10. Disconnect the driver's seat belt tensioner connector (see step 6 ).  

11. Disconnect SRS unit connector B (28P) from the SRS unit (see step 7 ).  

12. Measure the resistance between the No. 3 and the No. 4 terminals of SRS unit connector B (28P). 

There should be 2.0-3.0 ohms. 

 

2007 Acura RL 

2005-08 RESTRAINTS SRS (Supplemental Restraint System) - RL

  

me 

 

Friday, June 05, 2009 2:21:56 PM

Page 103  © 2005 Mitchell Repair Information Company, LLC.