Some info on the SRS issue.
Service Bulletin
© 2009 American Honda Motor Co., Inc. – All Rights Reserved BTB 41927 (0909) 1 of 10
CLIENT INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and
training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume this
bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized
Acura automobile dealer.
September 23, 2009
09-024
Applies To: 2007–08 MDX – ALL
2009 MDX – From VIN 2HNYD28..9H500001 thru 2HNYD28..9H517547
SRS Indicator Is On With DTC 61-1x or 62-1x
SYMPTOM
The SRS indicator is on, and DTC 61-1x (open in
driver’s seat belt buckle switch) or DTC 62-1x (open in
front passenger’s seat belt buckle switch) is stored.
NOTE: The “x” digit at the end of each DTC can be any
one of these: 0 thru 9, or A thru F.
PROBABLE CAUSE
• If DTC 61-1x or 62-1x returns after you clear it, the
probable cause is the detection item (an open in the
driver’s or front passenger’s seat belt buckle switch).
• If DTC 61-1x or 62-1x does not return after you clear
it, the probable cause is a poor connection in the
floor wire harness junction connector (C608).
CORRECTIVE ACTION
Depending on the result of your diagnosis,
troubleshoot the SRS DTC or replace the floor wire
harness.
PARTS INFORMATION
NOTE: To make sure the correct floor wire harness is
ordered, enter the VIN in your parts catalog search.
Quarter Pillar Trim Clip (eight required):
P/N 91561-SJD-003
Floor Wire Harness:
MDX Base -
P/N 32107-STX-A00
MDX Tech Package without power tailgate –
P/N 32107-STX-A10
MDX Tech Package with power tailgate –
P/N 32107-STX-D00
MDX Tech Package with RES and power tailgate –
P/N 32107-STX-A20
MDX Sport without power tailgate –
P/N 32107-STX-A30
MDX Sport with power tailgate -
P/N 32107-STX-D10
MDX Sport with RES and power tailgate -
P/N 32107-STX-A40
REQUIRED MATERIALS
Hondalock 2: P/N 08713-0002
(One bottle repairs about 3 vehicles.)
TOOL INFORMATION
KTC Trim Tool Set: T/N SOJATP2014
WARRANTY CLAIM INFORMATION
In warranty: The normal warranty applies.
Failed Part: P/N 32107-STX-A00
Defect Code: 03214
Symptom Code: 03205
Skill Level: Repair Technician
Out of warranty: Any repair performed after warranty
expiration may be eligible for goodwill consideration by
the District Parts and Service Manager or your Zone
Office. You must request consideration, and get a
decision, before starting work.
DIAGNOSIS
1. Connect the HDS to the vehicle’s DLC, and check
for DTCs.
Is SRS DTC 61-1x or 62-1x indicated?
Yes - Clear the DTCs, then go to step 2.
No - This service bulletin does not apply.
Troubleshoot any other DTCs that you found.
2. With the ignition switch in ON (II), buckle and
unbuckle the driver’s and the front passenger’s
seat belts several times.
3. Recheck for DTCs.
Is SRS DTC 61-1x or 62-1x indicated?
Yes - Troubleshooting the indicated SRS DTC.
No - Go to REPAIR PROCEDURE.
OP# Description FRT
7371B9 Replace the floor wire harness. 7.6
D Add for Tech Package model. 0.2
Add E for Sport model. 0.4
2 of 10 09-024
REPAIR PROCEDURE
NOTE:
• Before you begin, make sure you know the SRS
component locations, and that you read and
understand the SRS precautions and procedures
explained in the service manual.
• This procedure is in an outline form that you can also
use as a checklist for the repair. If you need more
details on the topics listed below, bookmark them in
the 07–09 MDX Service Manual, or view them
online:
- Battery Terminal Disconnection and Reconnection
- Front Inner Fender Replacement
- Rear Fender Cover Replacement
- Carpet Replacement
- B-Pillar Upper/Lower Trim
- Quarter Pillar Trim
- Rear Side Trim Panel Removal/Installation
- Center Console Removal/Installation
- Under-Dash Fuse/Relay Box Removal and
Installation
- Front Seat Belt Replacement
- AcuraLink Control Unit (XM Receiver) Removal/
Installation
- SH-AWD Control Unit Replacement
- Active Damper Control Unit Replacement
- Cargo Area Light Test/Replacement
Floor Wire Harness Removal
NOTE: Refer to the floor wire harness chart/illustration
on pages 7 thru 10 as needed.
1. Disconnect the negative cable from the battery, and
wait at least 3 minutes.
2. Raise the vehicle on a lift, then remove the right
front wheel and the rear wheels.
3. Remove the right front inner fender.
4. Inside the fender, disconnect the rear washer hose
at the T- fitting, and plug both ends of the hose.
5. Push the end of the rear washer hose and its
grommet into the passenger compartment.
NOTE: The rear washer hose is attached to the
main wire bundle of the floor wire harness. The new
floor wire harness comes with the washer hose
already attached.
6. Remove both rear fender covers, then disconnect
the rear TPMS initiator connectors and the rear
damper connectors (if equipped). Push the wire
harness grommet, the wire harness, and the
connectors into the passenger compartment.
CLIPS
(5 places)
GROMMET
WASHER HOSE
WASHER RESERVOIR
REAR TPMS
INITIATOR
REAR DAMPER
CONNECTOR
GROMMET
09-024 3 of 10
7. Disconnect the C613 (23P) floor wire harness to
rear subframe wire harness connector. Push the
wire harness grommet, the wire harness, and the
connector into the passenger compartment.
8. Remove the EVAP canister cover, then disconnect
the FTP sensor connector and the EVAP canister
shut valve connector. Push the wire harness
grommet, the wire harness, and the connectors into
the passenger compartment.
9. Remove the carpet. To remove the carpet, you first
need to remove these parts:
• Seats
• Door sill trims
• Kick panels
• Dashboard undercovers
• Steering joint cover
10. Remove the left and right B-pillar lower trim.
11. Remove the left and right quarter pillar trim.
NOTE: The four upper clips on each quarter pillar
trim must be replaced.
12. Remove the left and right rear side trim panels.
13. Remove the center console.
14. Remove the under-dash fuse/relay box.
15. Remove the driver’s and front passenger’s seat belt
retractors and the retractor protectors.
16. Remove the XM receiver.
17. Remove the SH-AWD control unit.
18. Remove the active damper control unit (if
equipped).
19. Remove the cargo area light.
20. At the rear of the vehicle, detach the rear clip on the
headliner, then carefully bend the headliner down a
few inches. Disconnect the AM/FM antenna
amplifier, the XM antenna, and the rear washer
hose.
21. Detach the rear washer hose clips, then push the
rear washer hose, the wire harness, and the
connectors into the passenger compartment.
GROMMET
SPARE TIRE EXHAUST
C613
SHUT VALVE
CONNECTOR
FTP SENSOR
CONNECTOR
GROMMET EVAP CANNISTER
AM/FM ANTENNA AMPLIFIER
XM ANTENNA
CONNECTOR
HEADLINER
REAR
WASHER
HOSE
4 of 10 09-024
22. Remove the third row seat rear heater duct.
23. Disconnect the floor wire harness connectors and
the clips from the front HVAC unit.
24. Remove the second row seat heater duct.
25. Remove the rear bracket from the rear HVAC unit.
26. Remove the six ground bolts from the floor wire
harness. then remove the harness from the vehicle.
THIRD ROW SEAT
HEATER DUCT
CLIPS
CONNECTOR CLIP
CONNECTORS
CLIPS
SECOND ROW SEAT
HEATER DUCT
CLIPS
HVAC UNIT
REAR BRACKET
WIRE HARNESS
(3 clips)
09-024 5 of 10
27. Detach the rear washer hose ciips, then remove the
floor wire harness and the rear washer hose.
Floor Wire Harness Installation
NOTE:
• Refer to the floor wire harness chart/illustration on
pages 7 thru 10 and the illustrations in Floor Wire
Harness Removal as needed.
• Do not bend or twist the new wire harness
excessively, and make sure it is not pinched or too
loose in any areas.
• Make sure all connectors on the new wire harness
are secure.
• Replace any damaged interior trim clips.
1. Bring the new floor wire harness and rear wiper
hose into the passenger compartment. Place the
various wire harness leads and connectors in their
approximate locations.
2. Attach the rear washer hose to the clips on and
near the tailgate.
3. ReInstall the six ground bolts in their correct
locations on the floor wire harness.
4. Reinstall the rear bracket to the rear HVAC unit.
5. Reinstall the second row seat heater duct, and
make sure the mounting clips are secure.
6. Connect the floor wire harness clips and the
connectors to the front HVAC unit.
7. Reinstall the third row seat rear heater duct.
8. At the rear of the vehicle, carefully bend the
headliner down, then connect the rear washer
hose, the XM antenna connector, and the AM/FM
antenna amplifier connector. Reattach the
headliner rear clip.
9. Reinstall the cargo area light.
10. Reinstall the active damper control unit (if
equipped), torque the mounting bolts to
9.8 N.m (7.2 lb-ft), and connect the connectors.
11. Reinstall the SH-AWD control unit:
• Torque the mounting bolt and the mounting nut
to 12 N.m (8.7 lb-ft).
• Connect the control unit connectors.
12. Reinstall the XM receiver:
• Torque the mounting bolts to 12 N.m
(8.7 lb-ft)
• Connect the receiver connectors.
13. Reinstall the driver’s and front passenger’s seat
belt retractor protectors and the retractors:
• Torque the retractor upper mounting bolts to
9.8 N.m (7.2 lb-ft).
• Torque the retractor lower mounting bolts to
32 N.m (24 lb-ft).
• Connect the retractor connectors.
14. Reinstall the under-dash fuse/relay box, and
connect the connectors.
REAR WASHER HOSE
6 of 10 09-024
15. Reinstall the center console:
• Torque the console front mounting bolts to
22 N.m (16 lb-ft).
• Torque the console rear mounting bolts to
9.8 N.m (7.2 lb-ft).
• Torque the rear blower motor relay mounting
bolt, the second row seat heater relay mounting
bolt (if equipped), and the ground bolt to
9.8 N.m (7.2 lb-ft).
• Connect the parking pin shift connector and the
shift lock solenoid connector.
16. Reinstall the left and right rear side trim panels.
17. Reinstall the left and right quarter pillar trim. The
four upper clips on each quarter pillar trim must be
replaced.
18. Reinstall the left and right B-pillar lower trim.
19. Reinstall the carpet:
• Do not wrinkle or twist the carpet.
• Make sure the seat harness connectors are
routed correctly.
• Slip the slits in the carpet over the heater ducts at
the second row and third row seats.
• Properly slip the carpet under the center console,
under the B-pillar lower trims, and under the rear
side trim panels.
• Torque the footrest nut to 6 N.m (4 lb-ft).
20. Reinstall the steering joint cover.
21. Reinstall the dashboard undercovers:
• On the driver’s side, attach the harness clip,
connect the ambient light connector, and connect
the footwell light connector.
• On the passenger’s side, connect the ambient
light connector, and the footwell light connector.
22. Reinstall the kick panels.
23. Reinstall the front and rear door sill trims.
24. Reinstall the seats:
• Connect power seat connectors and the side
airbag connectors to the connectors on the front
seats.
• Connect ODS connector to the connector on the
front passenger’s seat.
• If equipped, connect the navigation unit
connectors to the connectors on the driver’s seat.
• If equipped, connect the seat heater connectors
to the connectors on the second row seats.
• Apply Hondalock 2 Threadlock to the seat bolts,
then reinstall the bolts, and torque them to
47 N.m (35 lb-ft)
• Torque the seat belt lower anchor bolts on the
front seats to 32 N.m (24 lb-ft).
25. Insert these parts of the floor wire harness into their
openings in the passenger compartment, then push
them through to the outside of the vehicle:
• Middle of floor: EVAP canister shut valve
connector and FTP sensor connector
• Rear of floor: C613 (23P) floor wire harness
connector and grommet
• Rear fenders: Rear damper connectors (if
equipped) and rear TPMS initiator connectors
• Right front fender: rear washer hose and
grommet
26. Raise the vehicle on a lift.
27. Connect the EVAP canister shut valve connector
and the FTP sensor connector to the EVAP
canister. Make sure the wire harness grommet is
securely fitted to the vehicle body.
28. Reinstall the EVAP canister cover, and torque the
cover bolts to 22 N.m (16 lb-ft)
29. Connect the C613 (23P) floor wire harness
connector to the rear subframe wire harness
connector. Make sure the wire harness grommet is
securely fitted to the vehicle body.
30. Connect the rear damper connectors (if equipped)
and the rear TPMS initiator connectors. Make sure
the wire harness grommet is securely fitted to the
vehicle body.
31. Reinstall the rear fender covers:
• Torque the wheel arch bolts to 9.8 N.m
(7.2 lb-ft).
• Replace any damaged mounting clips.
32. Attach the new rear washer hose to the existing
hose inside the right front fender. Make sure the
hose grommet is securely fitted to the vehicle body.
33. Reinstall the right front fender cover:
• Torque the front lower bolt to 9.8 N.m
(7.2 lb-ft).
• Replace any damaged mounting clips.
34. Reinstall the right front inner fender.
35. Reinstall the wheels.
36. Reconnect the negative cable to the battery.
37. Test-drive the vehicle, and make sure that all
vehicle systems and controls work properly.
38. Use the HDS to check for DTCs, and clear any that
you find.
09-024 7 of 10
Floor Wire Harness (Left Branch)
Ref Connector or Terminal Cavities/
Color Location
1 C601 (Male) 20-WHT Under left side of dash
2 Under-dash Fuse/Relay Box Connector Q 14-GRN Left kick panel
3 Under-dash Fuse/Relay Box Connector E 16-GRN Left kick panel
4 Under-dash Fuse/Relay Box Connector F 14-GRN Left kick panel
5 Under-dash Fuse/Relay Box Connector G 6-GRN Left kick panel
6 Under-dash Fuse/Relay Box Connector H 14-GRN Left kick panel
7 C303 (Female) 7-BRN Behind left kick panel
8 C609 (Female) 23-WHT Under driver’s seat
9 Driver’s Side Airbag Inflator 2-YEL Under driver’s seat
10 Navigation Unit Connector A 20-BLK Under driver’s seat
11 Navigation Unit Connector B 14-GRN Under driver’s seat
12 Navigation Unit Connector C 8-BLK Under driver’s seat
13 Navigation Unit Connector D 7-GRN Under driver’s seat
14 Navigation Unit Connector F 5-GRN Under driver’s seat
14 Navigation Unit Connector F 5-GRN Under driver’s seat
14 Navigation Unit Connector E 2-GRY Under driver’s seat
15 C602 (Female) 20-WHT Under center console
16 C603 (Female) 5-WHT Under center console
17 EVAP Canister Vent Shut Valve 2-BLK Fuel tank
18 Fuel Tank Pressure (FTP) Sensor 3-BLK Fuel tank
19 Left Side Curtain Airbag Inflator 2-YEL Left C-pillar
20 Rear Safing Sensor 4-YEL Middle of floor
21 Left Second Row Seat Heater 3-WHT Under left second row seat
22 G603 — Left side of cargo area
23 Fuel Fill Door Opener Solenoid 2-GRY Left side of cargo area
24 C611 (Female) 4-WHT Left side of cargo area
24 C611 (Female) 12-WHT Left side of cargo area
25 C613 (Female) 23-BLK Under rear of floor
26 Cargo Area Accessory Power Socket 2-BLK Left side of cargo area
27 Rear Fuse/Relay Box Connector B 34-WHT/
GRN
Left side of cargo area
28 Rear Fuse/Relay Box Connector A 2-WHT Left side of cargo area
29 Active Damper Control Unit Connector A 20-LT BLU Left side of cargo area
30 Active Damper Control Unit Connector B 14-LT BLU Left side of cargo area
31 SH-AWD Control Unit Connector A 20-GRY Left side of cargo area
32 SH-AWD Control Unit Connector B 8-WHT Left side of cargo area
33 C612 (Junction Connector) 12-WHT Left side of cargo area
34 Fuel Pump Control Module 10-WHT Left side of cargo area
35 Left Rear TPMS Initiator 3-BLK Behind left rear fenderwell
36 Left Rear Vertical Acceleration Sensor 3-BLK Left side of cargo area
37 G604 — Left side of cargo area
38 C617 (Female) 2-BLU/BLK Behind left rear fenderwell
40 Left Side Impact Sensor (2nd) 2-YEL Left C-pillar
41 Left Rear Door Switch 1-WHT Left C-pillar
42 Fuel Tank Unit 4-GRY Fuel tank
43 Navigation Service Check Connector 2-WHT Under driver’s seat
44 Driver’s Seat Belt Tensioner 4-YEL Left B-pillar
45 C781 (Female) 18-WHT Left B-pillar
46 Left Side Impact Sensor (1st) 4-YEL Left B-pillar
47 Driver’s Door Switch 1-WHT Left B-pillar
48 G602 — Under driver’s seat
49 G601 — Left kick panel
8 of 10 09-024
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12
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17 18 19
20
21
22
23
24
25
26
27
28
29
34 33 32 31 30
35
36
37
38
39
LEFT REAR
DAMPER
SUB-HARNESS
40
42 41
43
44
45
46
47
48
49
FLOOR WIRE
HARNESS
10
6 8
09-024 9 of 10
Floor Wire Harness (Right Branch)
Ref Connector or Terminal Cavities/
Color Location
1 SRS Unit Connector C 16-YEL Under middle of dash
2 SRS Unit Connector B 28-YEL Under middle of dash
3 C606 (Female) 24-WHT Under middle of dash
4 C604 (Male) 12-WHT Behind right kick panel
5 C605 (Male) 18-WHT Behind right kick panel
6 C204 (Male) 23-WHT Behind right kick panel
7 G605 — Under front passenger’s seat
8 C610 (Female) 14-WHT Under front passenger’s seat
9 Front Passenger’s Door Switch 1-WHT Right B-pillar
10 Right Side Impact Sensor (1st) 4-YEL Right B-pillar
11 Front Passenger’s Seat Belt Tensioner 4-YEL Right B-pillar
12 C791 (Female) 18-WHT Right B-pillar
13 G606 — Right B-pillar
14 Right Rear Door Switch 1-WHT Right C-pillar
15 Right Side Impact Sensor (2nd) 2-YEL Right C-pillar
16 Right Rear TPMS Initiator 3-BLK Under right side of fender liner
18 C618 (Female) 2-BLU/BLK Behind right rear fenderwell
19 C615 (Junction Connector) 12-WHT Right side of floor
20 Subwoofer 8-GRY/WHT Right side of cargo area
21 Right Rear Vertical Acceleration Sensor 3-BLK Right side of cargo area
22 AcuraLink Control Unit (XM Receiver) Connector A 20-BLK/
WHT
Right side of cargo area
22 XM Receiver Connector A 14-WHT Right side of cargo area
23 AcuraLink Control Unit (XM Receiver) Connector B 16-BLK/
WHT
Right side of cargo area
24 AcuraLink Reprogramming Connector (C620) 5-WHT Right side of cargo area
25 C614 (Female) 2-WHT Right side of cargo area
25 C614 (Female) 13-WHT Right side of cargo area
26 Right Second Row Seat Heater 3-WHT Under right second row seat
27 Roll Rate Sensor 2-YEL Middle of floor
28 Right Side Curtain Airbag Inflator 2-YEL Right C-pillar
29 C608 (Junction Connector) 20-ORN Under middle of dash
30 Front Passenger’s Side Airbag Inflator 2-YEL Front passenger’s seat
31 C616 (Female) 4-GRY Under front passenger’s seat
10 of 10 09-024
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FLOOR WIRE
HARNESS
27
28 29
30 31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
RIGHT REAR
DAMPER
20 19 18 SUB-HARNESS
24 23 22 21
25
