Acura RL. Instruction — page 125

NO — Short in the front passenger’s airbag first or second inflator; replace the front passenger’s airbag
(see FRONT PASSENGER’S AIRBAG REPLACEMENT ).

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

10. Disconnect SRS unit connector A (28P) from the SRS unit (see step 7 ).

11. Disconnect the SRS inflator simulator from the SRS simulator lead.

12. Connect a SRS short canceller (070AZ-SAA0100) to No. 9 and No. 10 terminals and the No. 3 and

No. 4 terminals of SRS unit connector A (28P) (see OPENING THE SRS UNIT SHORTING
CONNECTORS FOR DIAGNOSIS
).

13. Measure the resistance between the terminals of the SRS simulator lead. There should be an open

circuit or at least 1 Mohms.

Fig. 97: Measuring Resistance Between Terminals Of SRS Simulator Lead
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES — Faulty SRS unit or poor connection at SRS unit connection A (28P) and the SRS unit. Check
the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit
(see SRS UNIT REPLACEMENT ).

NO — Short in dashboard wire harness A; replace dashboard wire harness A.

DTC 12-8X («X» CAN BE 0 THRU 9 OR A THRU F): SHORT TO POWER IN FRONT
PASSENGER’S AIRBAG FIRST INFLATOR; DTC 12-AX («X» CAN BE 0 THRU 9 OR A THRU
F): SHORT TO POWER IN FRONT PASSENGER’S AIRBAG SECOND INFLATOR

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

2007 Acura RL

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

me

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Page 84

© 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 12-8x or 12-Ax 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 front passenger’s airbag 4P connector (A) from dashboard wire harness A.

Fig. 98: Identifying Front Passenger’s Airbag 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

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

harness A.

6. Reconnect the negative cable to the battery.

7. Clear the DTC memory.

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

Is DTC 12-8x or 12-Ax indicated?

YES — Go to step 9.

NO — Short to power in the front passenger’s airbag first or second inflator; replace the front
passenger’s airbag (see FRONT PASSENGER’S AIRBAG REPLACEMENT ).

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

INFORMATION ).

2007 Acura RL

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

me

Friday, June 05, 2009 2:21:55 PM

Page 85

© 2005 Mitchell Repair Information Company, LLC.

10. Disconnect SRS unit connector A (28P) from the SRS unit (see step 7 ).

11. Disconnect the SRS inflator simulator from the SRS simulator lead.

12. Reconnect the negative cable to the battery.

13. Turn the ignition switch ON (II).

14. Measure the voltage between each terminal of the SRS simulator lead and body ground. There should

be 0.5 V or less.

Fig. 99: Measuring Voltage Between Each Terminal Of SRS Simulator Lead And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the voltage as specified?

YES — Faulty SRS unit or poor connection at SRS unit connection A (28P) and the SRS unit. Check
the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit
(see SRS UNIT REPLACEMENT ).

NO — Short to power in dashboard wire harness A; replace dashboard wire harness A.

DTC 12-9X («X» CAN BE 0 THRU 9 OR A THRU F): SHORT TO GROUND IN FRONT
PASSENGER’S AIRBAG FIRST INFLATOR; DTC 12-BX («X» CAN BE 0 THRU 9 OR A THRU
F): SHORT TO GROUND IN FRONT PASSENGER’S AIRBAG SECOND INFLATOR

Special Tools Required

SRS inflator simulator 07SAZ-TB4011A

SRS simulator lead F 07XAZ-SZ30100

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.

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

me

Friday, June 05, 2009 2:21:55 PM

Page 86

© 2005 Mitchell Repair Information Company, LLC.

Does the SRS indicator stay on, and is DTC 12-9x or 12-Bx 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 front passenger’s airbag 4P connector (A) from dashboard wire harness A.

Fig. 100: Identifying Front Passenger’s Airbag 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

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

harness A.

6. Reconnect the negative cable to the battery.

7. Clear the DTC memory.

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

Is DTC 12-91 or 12-B1 indicated?

YES — Go to step 9.

NO — Short to ground in the front passenger’s airbag first or second inflator; replace the front
passenger’s airbag (see FRONT PASSENGER’S AIRBAG REPLACEMENT ).

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

10. Disconnect SRS unit connector A (28P)from the SRS unit (see step 7 ).

11. Disconnect the SRS inflator simulator from the SRS simulator lead.

12. Measure the resistance between each terminal of the SRS simulator lead and body ground. There

should be an open circuit or at least 1M ohms.

2007 Acura RL

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

me

Friday, June 05, 2009 2:21:55 PM

Page 87

© 2005 Mitchell Repair Information Company, LLC.

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