Acura RL. Instruction — page 130

Fig. 127: Measuring Resistance Between No. 3 And No. 4 Terminals Of SRS Unit Connector B
(28P)

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 — Open or increased resistance in the right side wire harness; replace the right side wire harness.

DTC 22-3X («X» CAN BE 0 THRU 9 OR A THRU F): SHORT TO ANOTHER WIRE OR
DECREASED RESISTANCE IN FRONT PASSENGER’S SEAT BELT TENSIONER

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.

Does the SRS indicator stay on, and is DTC 22-31 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.

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 2:21:56 PM

Page 104 © 2005 Mitchell Repair Information Company, LLC.

Fig. 128: 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 22-3x indicated?

YES — Go to step 9.

NO — Short 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. Disconnect the simulator lead from the right side wire harness.

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

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

Fig. 129: Measuring Resistance Between No. 3 And No. 4 Terminals Of SRS Unit Connector B
(28P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

2007 Acura RL

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

me

Friday, June 05, 2009 2:21:56 PM

Page 105 © 2005 Mitchell Repair Information Company, LLC.

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 — Short in the right side wire harness; replace the right side wire harness.

DTC 22-8X («X» CAN BE 0 THRU 9 OR A THRU F): SHORT TO POWER IN FRONT
PASSENGER’S SEAT BELT TENSIONER

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.

Does the SRS indicator stay on, and is DTC 22-8x 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. 130: Identifying Right Side Wire Harness 4P Connector

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 2:21:56 PM

Page 106 © 2005 Mitchell Repair Information Company, LLC.

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 22-8x indicated?

YES — Go to step 9.

NO — Short to power 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. Disconnect the simulator lead from the right side wire harness.

13. Reconnect the negative cable to the battery.

14. Turn the ignition switch ON (II).

15. Measure the voltage between the No. 3 terminal of SRS unit connector B (28P) and body ground, and

between the No. 4 terminal and body ground. There should be 0.5 V or less.

Fig. 131: Measuring Voltage Between No. 3 [No. 4] Terminal Of SRS Unit Connector B (28P)
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 connector B (28P) and the SRS unit. Check the
connection; if the connection is OK, replace the SRS unit (see SRS UNIT REPLACEMENT ).

NO — Short to power in the right side wire harness; replace the right side wire harness.

DTC 22-9X («X» CAN BE 0 THRU 9 OR A THRU F): SHORT TO GROUND IN FRONT

2007 Acura RL

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

me

Friday, June 05, 2009 2:21:56 PM

Page 107 © 2005 Mitchell Repair Information Company, LLC.

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