Acura RL. Manual - part 115

Fig. 49: Identifying E-Pretensioner ('06-08 Models) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

E-PRETENSIONER UNIT ('06-08 MODELS) 

The e-pretensioner unit operates the motor-driving controls based on F-CAN data it receives from the 
adaptive cruise control unit, VSA modulator-control unit, and the PCM. Also the e-pretensioner unit 
receives seat belt buckle switch signals from the SRS unit by an interactive communication function. The e-
pretensioner unit has a self-diagnostic function, and if it detects a malfunction, it sends its information to the 
SRS unit. The SRS indicator is then turned on by the SRS unit. 

Fig. 50: E-pretensioner Unit Diagram ('06-08 Models) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

SRS UNIT INPUTS AND OUTPUTS AT CONNECTOR A (28P) 

 

2007 Acura RL 

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

  

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Friday, June 05, 2009 2:21:55 PM

Page 44 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 51: Identifying SRS Unit Inputs And Outputs At Connector A (28P) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

TERMINALS DESCRIPTION 

Terminal Number

Wire Color

Terminal Name

Description

1

GRN

LA2+

Power source for driver's 
airbag second inflator

2

PUR

LA2-

Ground for driver's airbag 
second inflator

3

LT GRN

RA2+

Power source for front 
passenger's airbag second 
inflator

4

LT BLU

RA2-

Ground for front 
passenger's airbag second 
inflator

5

LT GRN

MES

Memory delete signal 
input

6

BRN

SCS

Service check signal 
input

7

LT BLU

LA1 +

Power source for driver's 
airbag first inflator

8

BRN

LA1-

Ground for driver's airbag 
first inflator

9

YEL

RA1 +

Power source for front 
passenger's airbag first 
inflator

10

BLU

RA1-

Ground for front 
passenger's airbag first 
inflator

11

LT BLU

WARN

Gauge control module

12

ORN

PTT

Passenger's airbag cutoff 
indicator output line

13

ORN

DIAG-LINE

XM receiver

14

GRN

OPDS

Sends and receives 
communication signal 
with the OPDS unit

15

BRN

LFS-

Ground for left front 
impact sensor

16

LT BLU

RFS

Ground for right front 

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 2:21:55 PM

Page 45 

© 2005 Mitchell Repair Information Company, LLC. 

SRS UNIT INPUTS AND OUTPUTS AT CONNECTOR B (28P) 

Fig. 52: Identifying SRS Unit Inputs And Outputs At Connector B (28P) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

TERMINALS DESCRIPTION 

impact sensor

17

GRN

VA

SRS system sub power 
(common with OPDS)

18

RED

VB

SRS dedicated power 
(dedicated booster 
circuit)

21

YEL

CDS

Multiplex integrated 
control unit (MICU)

22

BLK

SRS GND (1)

Ground circuit for the 
SRS (G505)

23

BLK

SRS GND (2)

Ground circuit for the 
SRS (G505)

24

RED

K-LINE

Sends and receives scan 
tool signal (serial data)

27

RED

LFS+

Power source for left 
front impact sensor

28

GRN

RFS+

Power source for right 
front impact sensor

NOTE:

BLU or BRN wires may be substituted for the wire colors in this table.

Terminal Number

Wire Color

Terminal Name

Description

1

RED

LRP+

Power source for driver's 
seat belt tensioner

2

BRN

LRP-

Ground for driver's seat 
belt tensioner

3

GRN

RRP+

Power source for front 
passenger's seat belt 
tensioner

4

LT BLU

RRP-

Ground for front 
passenger's seat belt 
tensioner

5

GRY

SS-

Ground for driver's seat 

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 2:21:55 PM

Page 46 

© 2005 Mitchell Repair Information Company, LLC. 

SRS UNIT INPUTS AND OUTPUTS AT CONNECTOR C (28P) 

Fig. 53: Identifying SRS Unit Inputs And Outputs At Connector C (28P) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

TERMINALS DESCRIPTION 

position sensor

6

LT GRN

SS+

Power source for driver's 
seat position sensor

11

YEL

LBSC

Driver's seat belt buckle 
switch unbuckled signal

12

LT GRN

LBSO

Driver's seat belt buckle 
switch buckled signal

15

BLU

RBSC

Front passenger's seat 
belt buckle switch 
unbuckled signal

16

ORN

RBSO

Front passenger's seat 
belt buckle switch 
buckled signal

NOTE:

BLU or BRN wires may be substituted for the wire colors in this table.

Terminal Number

Wire Color

Terminal Name

Description

1

GRN

LSA+

Power source for driver's 
airbag inflator

2

RED

LSA-

Ground for driver's 
airbag inflator

3

WHT

RSA+

Power source for front 
passenger's airbag 
inflator

4

BLU

RSA-

Ground for front 
passenger's airbag 
inflator

5

GRN

SSS+

Power source for rear 
safing sensor

6

LT BLU

SSS-

Ground for rear safing 
sensor

7

BRN

LCA+

Power source for left 
side curtain airbag 

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 2:21:55 PM

Page 47 

© 2005 Mitchell Repair Information Company, LLC.