Acura RL. Manual - part 165

DTC 87-3X ("X" CAN BE 0 THRU 9 OR A THRU F): SIDE AIRBAG CUTOFF INDICATOR
STAYS ON/OFF

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?

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

4. Disconnect the OPDS unit harness 8P connector (A) from the OPDS unit.

Fig. 336: Identifying OPDS Unit Harness 8P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

5. Turn the ignition switch ON (II).

6. Measure the voltage between the No. 3 terminal of the OPDS unit harness 8P connector and body

ground. There should be battery voltage.

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 2:21:58 PM

Fig. 337: Measuring Voltage Between No. 3 Terminal Of OPDS Unit Harness 8P Connector And
Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES - Faulty OPDS unit; replace the OPDS unit (see OPDS UNIT REPLACEMENT ).

NO - Go to step 7.

7. Turn the ignition switch OFF.

8. Remove the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).

Disconnect gauge control module connector A (20P) from the gauge control module.

Fig. 338: Identifying Gauge Control Module Connector A (20P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

9. Measure the resistance between the No. 3 terminal of the OPDS unit harness 8P connector and body

ground. There should be an open circuit or at least 1Mohms.

2007 Acura RL

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

Friday, June 05, 2009 2:21:58 PM

Fig. 339: Measuring Resistance Between No. 3 Terminal Of OPDS Unit Harness 8P Connector
And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES - Go to step 10.

NO - Short to ground in the OPDS unit harness, right side wire harness, or dashboard wire harness A;
replace the faulty harness.

10. Measure the resistance between the No. 3 terminal of the OPDS unit harness 8P connector and the No.

11 terminal of gauge control module connector A (20P). There should be 0-1.0 ohms.

Fig. 340: Measuring Resistance Between No. 3 Terminal Of OPDS Unit Harness 8P Connector
And No. 11 Terminal Of Gauge Control Module Connector A (20P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES - Intermittent failure, the system is OK at this time. Go to TROUBLESHOOTING
INTERMITTENT FAILURES .

NO - Open in the OPDS unit harness, right side wire harness, or dashboard wire harness A; replace
the faulty harness.

DTC 91-1X ("X" CAN BE 0 THRU 9 OR A THRU F): INTERNAL FAILURE OF THE SRS UNIT

2007 Acura RL

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

Friday, June 05, 2009 2:21:58 PM

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 91-1x indicated?

YES - Replace the SRS unit (see SRS UNIT 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 91-2X ("X" CAN BE 0 THRU 9 OR A THRU F): SHORT TO GROUND IN THE SRS
INDICATOR CIRCUIT

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 91-2x 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 SRS unit connector A (28P) from the SRS unit (see step 7 ).

5. Remove the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).

Disconnect the gauge control module connector A (20P) from the gauge control module.

NOTE:



Before troubleshooting any of these DTCs, check the battery/system
voltage. If the voltage is low, repair the charging system before
troubleshooting the SRS system. If the battery/system voltage is now
OK, ask the client if the battery ever went dead. A dead battery may
trigger one of these DTCs.



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

NOTE:

2007 Acura RL

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

Friday, June 05, 2009 2:21:58 PM

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