Content .. 668 669 670 671 ..

Acura CSX. Manual - part 670

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−

YES

HFL Switch

Position

Resistance

23-387

HFL Switch Test

HANDSFREELINK CONTROL UNIT 28P CONNECTOR

HFL ICON (LT GRN)

NAVIGATION UNIT CONNECTOR B (24P)

HFL ICON (LT GRN)

4. Check for continuity between HandsFreeLink

control unit 28P connector terminal No. 19 and
navigation unit connector B (24P) terminal No. 20.

Substitute a known-good HandsFreeLink

control unit (see page 23-388) and recheck. If the
symptom/indication goes away, replace the
original HandsFreeLink control unit. If the symptom
/indication is still present, replace the navigation
unit (see page 23-355).

Repair open in the wire between

HandsFreeLink control unit and navigation unit.

1. Remove the HFL-voice control switch (see page

23-357).

2. Measure resistance between the terminals No. 3

and No. 4 in each switch position according to the
table.

No button pressed

About 1 k

HFL Talk button pressed

About 185

HFL Back button pressed

About 45

3. If the resistance is not as specified, replace the HFL-

voice control switch.

Wire side of female terminals

Is ther e continuity?

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Cavity

Wire

Test condition

Test: Desired result

Possible cause if result is not obtained

Cavity

Wire

Test condition

Test: Desired result

Possible cause if result is not obtained

23-388

HandsFreeLink System

Control Unit Input Test/Replacement

WHT

PUR

PNK

BLK

1. Remove the center console (see page 20-92).

2. Remove the console lower box (see page 20-95).

3. Disconnect the 28P connector (A) from the HandsFreeLink control unit (B).

4. Inspect the connector and socket terminals for a good pinfit to be sure they are all making good contact.

• If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
• If the terminals look OK, go to step 5.

5. Reconnect the connector and make these input tests at the connector.

• If any test indicates a problem, find and correct the cause, then recheck the system.
• If all the input tests prove OK, go to step 6.

•
•
•

•
•

•

BLK

Under all conditions

Check for voltage to ground:
There should be less than 0.5 V.

Poor ground (G501)
An open in the wire

WHT

Under all conditions

Check for voltage to ground:
There should be battery voltage.

Blown No. 23 (10 A) fuse in the
under-hood fuse/relay box
An open in the wire

PUR

Ignition switch ON (II)

Check for voltage to ground:
There should be battery voltage.

Blown No. 35 (7.5 A) fuse in the
under-dash fuse/relay box
An open in the wire

6. Disconnect the 28P connector again, and make this input test at the connector.

• If the test indicates a problem, find and correct the cause, then recheck the system.
• If the input test proves OK, the HandsFreeLink control unit must be faulty, replace it.

PNK

Under all conditions

Check for continuity between No. 18
terminal and the driver’s under-dash
fuse/relay box connector Q (16P)
terminal No. 6:
There should be continuity.

An open in the wire

Driver’s under-dash fuse/relay
box connector Q (16P)
disconnected

Check for continuity to ground:
There should be no continuity.

Short to ground

Wire side of female terminals

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Restraints

Seat Belts

SRS (Supplemental Restraint System)

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Special Tools

. 24-2

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Component Location Index

. 24-3

Front Seat Belt Replacement

. 24-4

Rear Seat Belt Replacement

. 24-7

Inspection

. 24-9

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Component Location Index

. 24-11

Precautions and Procedures

. 24-13

General Troubleshooting Information

. 24-22

ODS Unit Initialization

. 24-26

ODS Unit Calibration

. 24-27

ODS Unit Operation Check

. 24-28

Driver’s Seat Position Sensor Operation Check

. 24-29

DTC Troubleshooting Index

. 24-30

Symptom Troubleshooting Index

. 24-34

System Description

. 24-35

Circuit Diagram

. 24-40

DTC Troubleshooting

. 24-48

Symptom Troubleshooting

. 24-181

Component Replacement/Inspection After

Deployment

. 24-185

Driver’s Airbag Replacement

. 24-188

Front Passenger’s Airbag Replacement

. 24-189

Side Airbag Replacement

. 24-191

Side Curtain Airbag Replacement

. 24-192

Airbag and Tensioner Disposal

. 24-196

Cable Reel Replacement

. 24-200

SRS Unit Replacement

. 24-203

Side Impact Sensor (First) Replacement

. 24-204

Side Impact Sensor (Second) Replacement

. 24-205

Rear Safing Sensor Replacement

. 24-206

Front Passenger’s Weight Sensor Replacement

. 24-207

ODS Unit Replacement

. 24-209

Front Impact Sensor Replacement

. 24-210

Driver’s Seat Position Sensor Replacement

. 24-211

Passenger’s Airbag Cutoff Indicator

Illumination Bulb Test/Replacement

. 24-212

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Ref. No.

Tool Number

Description

Qty

24-2

Restraints

Special Tools

07HAZ-SG00500

Deployment Tool

07SAZ-TB4011A

SRS Inflator Simulator

070AZ-SNAA100

SRS Simulator Lead J

07TAZ-001020A

Backprobe Adapter, 17 mm

070AZ-SNAA200

SRS Simulator Lead K

070AZ-SNAA300

SRS Simulator Lead L

070AZ-SAA0100

SRS Short Canceller

07744-0010300

Pin Driver, 3.5 mm

07PAZ-001010A

SCS Service Connector

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Content .. 668 669 670 671 ..