Acura RL. Manual - part 162

Fig. 321: Measuring Resistance Between No. 14 Terminal Of SRS Unit Connector B (28P) And
No. 11 Terminal Of Right Side Wire Harness 16P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES - Open in the left side wire harness; replace the left side wire harness.

NO - Open in the right side wire harness; replace the right side wire harness.

21. Disconnect dashboard wire harness A 23P connector C601 (A) from left side wire harness C601 (B).

Fig. 322: Identifying Dashboard Wire Harness A 23P Connector C601 (A) And Left Side Wire
Harness C601 (B)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

22. Measure the resistance between the No. 14 terminal of SRS unit connector A (28P) and body ground.

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

2007 Acura RL

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

Friday, June 05, 2009 2:21:57 PM

Fig. 323: Measuring Resistance Between No. 14 Terminal Of SRS Unit Connector A (28P) And
Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES - Short to ground in dashboard wire harness A; replace dashboard harness A.

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

DTC 81-4X, 81-5X, 81-63,81-64 ("X" CAN BE 0 THRU 9 OR A THRU F): INTERNAL FAILURE
OF THE FRONT PASSENGER'S WEIGHT SENSOR UNIT; DTC 85-4X, 85-5X, 85-63,85-64 ("X"
CAN BE 0 THRU 9 OR A THRU F): INTERNAL FAILURE OF THE OPDS UNIT

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 81-4X, 81-5x, 81-63, 81-64, 85-4x, 85-5X, 85-63, or 85-
64 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. Calibrate the front passenger's weight sensor unit (see FRONT PASSENGER'S WEIGHT

SENSOR UNIT CALIBRATION ) or initialize the OPDS unit (see OPDS UNIT
INITIALIZATION ).

4. 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 go 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

Friday, June 05, 2009 2:21:57 PM

YES - The system is OK.

NO - Go to step 5.

5. Replace the front passenger's weight sensor unit (see FRONT PASSENGER'S WEIGHT SENSOR

UNIT REPLACEMENT ) or replace the OPDS unit (see OPDS UNIT REPLACEMENT ).

6. 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 go off?

YES - The system is OK.

NO - Replace the SRS unit (see SRS UNIT REPLACEMENT ).

DTC 81-79: FRONT PASSENGER'S WEIGHT SENSORS INITIAL CHECK FAILURE

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 81-79 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.

4. Make sure nothing is on the front passenger's seat.

5. 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 go off?

YES - The system is OK.

NO - Remove the front passenger's seat assembly (see FRONT SEAT
REMOVAL/INSTALLATION ) and the front passenger's weight sensors (see FRONT
PASSENGER'S WEIGHT SENSOR REPLACEMENT ), then reinstall them. Calibrate the front
passenger's weight sensor unit (see FRONT PASSENGER'S WEIGHT SENSOR UNIT
CALIBRATION ). Retry the troubleshooting.

DTC 82-1X ("X" CAN BE 0 THRU 9 OR A THRU F): NO SIGNAL FROM THE INNER SIDE

NOTE:

2007 Acura RL

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

Friday, June 05, 2009 2:21:57 PM

FRONT PASSENGER'S WEIGHT SENSOR; DTC 83-2X ("X" CAN BE 0 THRU 9 OR A THRU F):
NO SIGNAL FROM THE OUTER SIDE FRONT PASSENGER'S WEIGHT SENSOR

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 82-1x or 83-2x indicated?

YES - Replace the inner or outer side front passenger's weight sensor (see FRONT PASSENGER'S
WEIGHT SENSOR REPLACEMENT ).

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

DTC 85-61: NO SIGNAL FROM OPDS UNIT

1. Make sure nothing is on the front passenger's seat.

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

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

Is DTC 85-61 indicated?

YES - Go to step 4.

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

4. Check the connection between the OPDS unit harness 8P connector and the OPDS unit.

Is the connection OK?

YES - Go to step 6.

NO - Repair the poor connection and retest. If DTC 85-61 is still present, go to step 5.

5. Clear the DTC.

6. Read the DTC.

NOTE:

2007 Acura RL

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

Friday, June 05, 2009 2:21:57 PM

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