Acura RL. Instruction — page 160

10. Turn the ignition switch OFF.

11. Measure the resistance between the No. 10 terminal of e-pretensioner unit connector B (14P) and

body ground, and between the No. 11 terminal of e-pretensioner unit connector B (14P) and body
ground. There should be 0-1.0ohms.

Fig. 307: Measuring Resistance Between No. 10 Terminal Of E-Pretensioner Unit Connector B
(14P) And Body Ground

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Are the resistances as specified?

YES — Go to step 12.

NO — Open between the No. 10 terminal of e-pretensioner unit connector B (14P) and body ground, or
between the No. 11 terminal of e-pretensioner unit connector B (14P) and body ground or poor
connection at G653 (see RIGHT SIDE WIRE HARNESS (FRONT BRANCH) ).

12. Measure the resistance between the No. 5 terminals of e-pretensioner unit connector A (5P) and body

ground. There should be 0-1.0 ohms.

Fig. 308: Measuring Resistance Between No. 5 Terminals Of E-Pretensioner Unit Connector A
(5P) And Body Ground

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES — Go to step 13.

NO — Open between the No. 5 terminal of e-pretensioner unit connector A (5P) and body ground or
poor connection G653 (see RIGHT SIDE WIRE HARNESS (FRONT BRANCH) ).

13. Disconnect the negative cable from the battery, then wait for 3 minutes.

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14. Disconnect SRS unit connect A (28P) from the SRS unit (see step 7 ).

15. 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 Mohms.

Fig. 309: 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 — Go to step 16.

NO — Short to ground between the No. 14 terminal of SRS unit connector A (28P) and the No. 6
terminal of e-pretensioner unit connector B (14P).

16. Measure the resistance between the No. 14 terminal of SRS unit connector A (28P) and the No. 6

terminal of e-pretensioner unit connector B (14P). There should be 0-1.0 ohms.

Fig. 310: Measuring Resistance Between No. 14 Terminal Of SRS Unit Connector A (28P) And
No. 6 Terminal Of E-Pretensioner Unit Connector B (14P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES — Faulty e-pretensioner unit; replace the e-pretensioner unit (see E-PRETENSIONER UNIT
REPLACEMENT
).

2007 Acura RL

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

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Page 225 © 2005 Mitchell Repair Information Company, LLC.

NO — Open between the No. 14 terminal of SRS unit connector A (28P) and the No. 6 terminal of e-
pretensioner unit connector B (14P).

DTC 81-61: NO SIGNAL FROM FRONT PASSENGER’S WEIGHT SENSOR UNIT; DTC 81-62:
RESPONSE DATA ERROR FROM THE FRONT PASSENGER’S WEIGHT SENSOR UNIT

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

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

Is DTC 81-61 or 81-62 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 floor wire harness 6P connector and the front passenger’s weight

sensor unit (see FRONT PASSENGER’S WEIGHT SENSOR UNIT REPLACEMENT ).

Is the connection OK?

YES — Go to step 4.

NO — Repair the poor connection and retest. If DTC 81-61 or 81-62 is still present, go to step 4.

4. Turn the ignition switch OFF.

5. Check the No. 10 (7.5 A) fuse in the driver’s under-dash fuse/relay box.

Is the fuse OK?

YES — Go to step 6.

NO — Replace the fuse, then turn the ignition switch ON (II). If the fuse blows again, check for a short
in the No. 10 (7.5 A) fuse circuit (dashboard wire harness A or right side wire harness).

6. Disconnect the right side wire harness 6R connector (A) from the front passenger’s weight sensor unit.

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

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Page 226 © 2005 Mitchell Repair Information Company, LLC.

Fig. 311: Identifying Right Side Front Passenger’s Weight Sensor Unit And 6R Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

7. Turn the ignition switch ON (II).

8. Measure the voltage between the No. 3 terminal of the front passenger’s weight sensor unit 6P

connector C and body ground. There should be battery voltage.

Fig. 312: Measuring Voltage Between No. 3 Terminal Of Front Passenger’s Weight Sensor Unit
6P Connector C And Body Ground

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES — Go to step 13.

NO — Go to step 9.

9. Turn the ignition switch OFF.

10. Disconnect dashboard wire harness A 34P connector C651 (A) from the right side wire harness C651

(B).

2007 Acura RL

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

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Page 227 © 2005 Mitchell Repair Information Company, LLC.

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