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Acura RL. Manual - part 157

faulty harness.

DTC 71-11: OPEN IN DRIVER'S SEAT POSITION 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 71-11 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. Check the connection between the seat position sensor harness 2P connector and the driver's seat

position sensor.

4. Clear the DTC memory.

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

Is DTC 71-11 indicated?

YES - Go to step 6.

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

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

7. Disconnect the left side wire harness 2P connector from the driver's seat position sensor (A).

NOTE:



Use the HDS to confirm the driver's seat position before proceeding
with troubleshooting (see DRIVER'S SEAT POSITION SENSOR
OPERATION CHECK ).



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

Fig. 292: Identifying Left Side Driver's Seat Position Sensor And 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

8. Connect the No. 1 and No. 2 terminals of the left side wire harness 2P connector with a jumper wire.

9. Disconnect both seat belt tensioner 4P connectors (see step 6 ).

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

11. Measure the resistance between the No. 5 and No. 6 terminals of SRS unit connector B (28P). There

should be 0-1.0 ohms.

Fig. 293: Measuring Resistance Between No. 5 And No. 6 Terminals Of SRS Unit Connector B
(28P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES - Faulty driver's seat position sensor or SRS unit; replace the driver's seat position sensor (see
DRIVER'S SEAT POSITION SENSOR REPLACEMENT ). If the problem is still present,
replace the SRS unit (see SRS UNIT REPLACEMENT ).

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

DTC 71-21: SHORT IN DRIVER'S SEAT POSITION SENSOR

NOTE:



Use the HDS to confirm the driver's seat position before proceeding
with troubleshooting (see DRIVER'S SEAT POSITION SENSOR
OPERATION CHECK ).

2007 Acura RL

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

Friday, June 05, 2009 2:21:57 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 71-21 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 driver's seat wire harness 2P connector from the driver's seat position sensor (A) (see

COMPONENT LOCATION INDEX ).

Fig. 294: Identifying Left Side Driver's Seat Position Sensor And 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

5. Reconnect the negative cable to the battery.

6. Clear the DTC memory.

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

Is DTC 71-21 indicated?

YES - Go to step 8.

NO - Faulty driver's seat position sensor; replace the driver's seat position sensor (see DRIVER'S
SEAT POSITION SENSOR REPLACEMENT ).

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

9. Disconnect both seat belt tensioner 4P connectors (see step 6 ).



2007 Acura RL

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

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

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

11. Measure the resistance between the No. 5 and No. 6 terminals of SRS unit connector B (28P). There

should be an open circuit or at least 1Mohms.

Fig. 295: Measuring Resistance Between No. 5 And No. 6 Terminals Of SRS Unit Connector B
(28P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES - Go to step 12.

NO - Short in the right side wire harness or left side wire harness; replace the faulty harness.

12. Measure the resistance between the No. 5 terminal of SRS unit connector B (28P) and body ground,

and between the No. 6 terminal and body ground. There should be an open circuit or at least 1 M
ohms.

Fig. 296: Measuring Resistance Between No. 5 [No. 6] Terminal Of SRS Unit Connector B (28P)
And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

2007 Acura RL

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

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

Content .. 155 156 157 158 ..