Acura RL. Manual - part 159

Fig. 302: Measuring Resistance Between No. 13 And No. 14 Terminals 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 ).

NO - Faulty e-pretensioner motor; replace the front passenger's e-pretensioner motor (see
COMPONENT LOCATION INDEX ).

DTC 76-3X ("X" CAN BE 0 THRU 9 OR A THRU F): FAULTY F-CAN COMMUNICATION OR
INTERNAL FAILURE OF E-PRETENSIONER UNIT ('06-08 MODELS)

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

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

Is DTC 76-3x 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 for DTCs in the PCM.

Are any DTCs indicated?

YES - Troubleshoot the PCM DTCs.

NO - Go to step 4.

4. Turn the ignition switch OFF.

5. Disconnect e-pretensioner subharness 14P connector B from the e-pretensioner unit (see

COMPONENT LOCATION INDEX ).

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

6. Disconnect PCM connector E (31P) (see PCM REPLACEMENT ).

7. Measure the resistance between e-pretensioner unit connector B(14P) terminal No. 3 and PCM

connector E (31P) terminal No. 15, and between e-pretensioner unit connector B (14P) terminal No. 5
and PCM connector E (31P) terminal No. 26. There should be 0-1.0ohms.

Fig. 303: Measuring Resistance Between E-Pretensioner Unit Connector B(14P) Terminal No. 3
And PCM Connector E (31P) Terminal No. 15
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES - Check for loose terminals and poor connections at e-pretensioner control unit connector B
(14P) terminals No. 3 and No. 5. If the terminals and connections are OK, replace the e-pretensioner
control unit, and recheck.

NO - Repair high resistance or an open circuit between C662 and the e-pretensioner control unit
connector B(14P).

DTC 76-4X, 76-5X, 76-63 ("X" CAN BE 0 THRU 9 OR A THRU F): INTERNAL FAILURE OF E-
PRETENSIONER UNIT ('06-08 MODELS)

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 76-4x, 76-5x, or 76-63 indicated?

YES - Replace the e-pretensioner unit (see E-PRETENSIONER 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.

NOTE:

2007 Acura RL

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

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

DTC 76-61: NO SIGNAL FROM THE E-PRETENSIONER UNIT ('06-08 MODELS)

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

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

Is DTC 76-61 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 No. 31 (7.5 A) fuse in the driver's under-dash fuse/relay box and No. 4 (30 A) fuse and No.

8 (30 A) fuse in the passenger's under-dash fuse/relay box.

Are the fuses OK?

YES - Go to step 4.

NO - Replace the faulty fuse. If the problem is still present, short to ground in the driver's under-dash
fuse/relay box or passenger's under-dash fuse/relay box circuit.

4. Disconnect e-pretensioner subharness 14P connector B from the e-pretensioner unit.

5. Turn the ignition switch ON (II).

6. Measure the voltage between the No. 8 terminal of e-pretensioner unit connector B (14P) and body

ground. There should be battery voltage.

Fig. 304: Measuring Voltage Between No. 8 Terminal Of E-Pretensioner Unit Connector B
(14P) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES - Go to step 7.

NOTE:

2007 Acura RL

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

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

NO - Open between the No. 31 (7.5 A) fuse in the driver's under-dash fuse/relay box and the No. 8
terminal of e-pretensioner unit connector B (14P).

7. Measure the voltage between the No. 12 terminal of e-pretensioner unit connector B (14P) and body

ground. There should be battery voltage.

Fig. 305: Measuring Voltage Between No. 12 Terminal Of E-Pretensioner Unit Connector B
(14P) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the battery voltage?

YES - Go to step 8.

NO - Open between No. 8 (30 A) fuse in the passenger's under-dash fuse/relay box and the No. 12
terminal of e-pretensioner unit connector B(14P).

8. Disconnect e-pretensioner subharness 5P connector A from the e-pretensioner unit.

9. Measure the voltage between the No. 2 terminal of e-pretensioner unit connector A (5P) and body

ground. There should be battery voltage.

Fig. 306: Measuring Voltage Between No. 2 Terminal Of E-Pretensioner Unit Connector A (5P)
And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES - Go to step 10.

NO - Open between No. 4 (30 A) fuse in the passenger's under-dash fuse/relay box and the No. 1
terminal of e-pretensioner unit connector A(5P).

2007 Acura RL

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

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

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