Ford Explorer: Supplemental Restraint System / Removal and Installation - Occupant Classification System (OCS) Sensor - Vehicles With: Multi-Contour Seats
Special Tool(s) /
General Equipment
Removal
WARNING:
The following procedure prescribes critical repair steps
required for correct restraint system operation during a crash. Follow
all notes and steps carefully. Failure to follow step instructions may
result in incorrect operation of the restraint system and increases the
risk of serious personal injury or death in a crash.
NOTICE:
To prevent system failure, carry out the OCS (occupant
classification system) reset when a front passenger seat cushion is
disassembled, a new trim cover or heater mat is installed or an OCS
(occupant classification system) service kit is installed. Use a
diagnostic scan tool to carry out the OCS (occupant classification
system) reset command.
NOTE:
OCS (occupant classification system) components (seat
cushion foam, bladder with OCSM (occupant classification system module))
are calibrated to each other and are serviced as an assembly with an
OCS (occupant classification system) service kit. If a new OCS (occupant
classification system) or seat cushion foam are needed, a new OCS
(occupant classification system) service kit must be installed. The
heater mat can be serviced separately.
NOTE:
Removal steps in this procedure may contain installation details.
All seats
-
WARNING:
Before beginning any service procedure in this
manual, refer to health and safety warnings in section 100-00 General
Information. Failure to follow this instruction may result in serious
personal injury.
Refer to: Pyrotechnic Device Health and Safety Precautions (100-00 General Information, Description and Operation).
-
NOTE:
Follow the unique instructions or graphic for this step in the installation.
Remove the front passenger seat.
Refer to: Front Seat (501-10A Front Seats, Removal and Installation).
-
Remove the front seat side shield rear screw.
-
-
Lift up and out, separating the front seat side shield from the recliner bracket.
-
Slide the front seat side shield forward and separate the side shield from the seat.
-
Disconnect the seat control switch electrical connector and remove the front seat side shield.
-
Remove the screws and the front seat valance.
-
Release the front seat backrest panel straps.
-
Detach the electrical connectors, the wiring harness retainers and position the wiring harnesses aside.
-
Disconnect the cushion heater mat electrical connector and detach the wiring harness pin-type retainer.
-
-
Disconnect the OCSM electrical connector.
-
NOTE:
Follow the unique instructions or graphic for this step in the installation.
Bend the tab up.
Use the General Equipment: Flat Headed Screw Driver
-
Slide the OCSM off the bracket.
-
Detach the rear cushion cover retainers and position the cushion cover aside.
-
Remove the front seat cushion blower motor.
Refer to: Front Seat Cushion Blower Motor (501-10A Front Seats, Removal and Installation).
-
-
Detach the front seat cushion cover J-clip.
-
On both sides.
Detach the front seat cushion cover J-clips.
-
Lift the front seat cushion foam. If the front seat cushion foam and OCS bladder are adhered together, then the OCS is a service kit. If nothing is adhered together, then the OCS is OE (original equipment).
Seats with an OE (original equipment) OCS (occupant classification system)
-
NOTE:
For correct installation, note the location of
the cushion heater mat wiring harness pigtail as it passes through the
seat.
Remove the front seat cushion foam and cover as an assembly.
-
Pull the front seat cushion cover, foam and
heater mat pigtail out from between the seat track and backrest.
-
-
Detach the OCS pin-type retainers.
-
Lift the OCS off the front seat track.
-
NOTICE:
During installation, do not kink the OCS
(occupant classification system) hose or the SRS (supplemental restraint
system) will not operate correctly.
NOTE:
For correct installation, note the location of
the OCS (occupant classification system) hose as it passes through the
seat.
Route out the OCS hose and module from between the front seat cushion support wires and remove the OCS.
Seats with a service kit OCS (occupant classification system)
-
-
Remove the OCS pin-type retainers.
-
Lift the cushion foam and service kit OCS to start removal.
-
NOTICE:
During installation, do not kink the OCS
(occupant classification system) hose or the SRS (supplemental restraint
system) will not operate correctly.
NOTE:
For correct installation, note the location of
the OCS (occupant classification system) hose as it passes through the
seat.
Route out the OCS hose and module from between the front seat cushion support wires and continue OCS removal.
-
NOTE:
For correct installation, note the location of
the cushion heater mat wiring harness pigtail as it passes through the
seat.
Route out the front seat cushion heater mat wiring harness pigtail and remove the OCS with cushion cover and foam as an assembly.
All seats
-
NOTE:
This step is only necessary when installing a new OCS (occupant classification system).
Position the rear portion of the front seat cushion cover from the foam.
-
NOTE:
This step is only necessary when installing a new OCS (occupant classification system).
NOTE:
Follow the unique instructions or graphic for this step in the installation.
Remove the front seat cushion cover.
-
Invert the seat cushion cover.
-
NOTICE:
Use care when separating the seat cushion
from the hook-and-arrow or the hook may be torn from the seat cushion
foam pad.
Release the hook and arrows.
-
NOTICE:
Use care when separating the seat cushion
trim cover from the hook-and-loop strips or the hook-and-loop strips may
be torn from the seat cushion foam pad.
Release hook-and-loop strips.
Installation
-
NOTICE:
Inspect the OCS (occupant classification system)
bladder, seat cushion pan and support assembly for any foreign objects
before installing the OCS (occupant classification system) to the seat
cushion pan. Remove any foreign objects. Failure to follow these
instructions may result in incorrect operation of the OCS (occupant
classification system) and may cause system failure.
NOTICE:
Do not trap the pressure sensor hose incorrectly
over the seat's suspension or spring. Route the hose so that it lays in a
natural bend, and is not twisted due to being forced into an unnatural
position. Failure to follow these instructions may result in component
damage and/or system failure.
To install, reverse the removal procedure.
-
If required.
Install a new cushion heater mat.
Refer to: Seat Heater Mat Installation (501-10A Front Seats, General Procedures).
-
Bend the OCS sensor bracket tab back.
-
Install the front passenger seat. Do not prove out the SRS at this time.
Refer to: Front Seat (501-10A Front Seats, Removal and Installation).
-
WARNING:
Occupant Classification System (OCS) parts are
calibrated as an assembly and must only be replaced in the configuration
they are sold. Never separate parts of an assembly. Failure to follow
this instruction may result in incorrect operation of the OCS and
increases the risk of serious personal injury or death in a crash.
WARNING:
Make sure the front passenger seat repair is
complete, the seat and all attached components (head restraint, seat
side shield, etc.) are correctly assembled, and the seat is correctly
installed to the vehicle before using System Reset to rezero the seat
weight. Failure to follow these instructions may result in incorrect
operation of the occupant classification system (OCS) and increases the
risk of serious personal injury or death in a crash.
NOTICE:
To prevent system failure, take the following
precautions before carrying out the OCS (occupant classification system)
reset.
-
Make sure the voltage to the OCSM (occupant
classification system module) is greater than 8 volts and less than 18
volts.
-
Make sure the OCS (occupant classification
system) is not below 6º C (42.8º F) or above 36º C (96.7º F) when
initiating the OCS (occupant classification system) reset process. If
the vehicle has been exposed to extreme cold or hot temperatures, the
vehicle must be exposed and kept at a temperature between 6º C (42.8º F)
to 36º C (96.7º F) for a minimum of 30 minutes.
-
Make sure nothing is present on the
passenger seat before and during the OCS (occupant classification
system) reset process.
-
Prior to carrying out the OCS (occupant
classification system) reset, make sure a minimum of 8 seconds has
elapsed after cycling the ignition switch on.
Using a diagnostic scan tool, carry out the OCS reset. Cycle the ignition switch after the OCS reset.
-
If the first system reset attempt was successful, proceed to prove out the SRS.
-
If the first system reset attempt was not successful, carry out a thorough visual inspection of the OCS
connector and wiring for damage, pressure sensor hose for kinks and or
damage, and seat-related wiring harness and body wiring harness
terminals and connectors for damage. Repair any concerns found and
proceed to the next step.
-
Carry out a second OCS reset. Cycle the ignition switch after the OCS reset. If the second attempt is unsuccessful, install a new OCS service kit.
-
Prove out the SRS.
Verify all airbags are installed and connected and the ignition is OFF.
Wait 10 seconds then turn the ignition ON and monitor the airbag
warning indicator. The airbag warning indicator illuminates continuously
for approximately 6 seconds and turns off. Continue to monitor the
airbag warning indicator for approximately 30 seconds, as this is the
time required for the RCM to complete testing of the SRS.
-
If a SRS
fault is present, the airbag warning indicator either fails to light,
remains lit continuously or flashes. The flashing may not occur until
approximately 30 seconds after the ignition has been turned from OFF to
ON. If this occurs, diagnose and repair any SRS faults before proceeding with other repairs.
-
If, after the ignition has been turned on for 30
seconds, the airbag warning indicator remains unlit with no chime or SRS message displayed in the message center, no SRS fault is present.
-
If the airbag warning indicator is inoperative and a SRS
fault exists, a chime sounds in a pattern of 5 sets of 5 beeps or a
message displays in the message center. If this occurs, diagnose and
repair the airbag warning indicator and any SRS faults before proceeding with other repairs.
-
Using a diagnostic scan tool, clear all Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.
Removal
WARNING:
The following procedure prescribes critical repair steps
required for correct restraint system operation during a crash. Follow
all notes and steps carefully...
Special Tool(s) /
General Equipment
Flat Headed Screw Driver
Removal
WARNING:
The following procedure prescribes critical repair steps
required for correct restraint system ope..
Other information:
Inspect the camshaft lobes for pitting or damage in the
active area. Minor pitting is acceptable outside the active area. The
active area includes the opening ramp and closing ramp. The opening ramp
is the point where the lifter just begins to lift until the point it
reaches the nose of the lobe...
Overview
The interior lighting system consists of:
Courtesy lamps
Demand lamps
Ambient lighting
The courtesy lamps subsystem consists of:
Interior overhead lamps
Puddle lamps
Front door illuminated scuff plates
Cargo lamp
Courtesy lamp switch (integrated into the overhead console)
Door ajar switches (integrated into the door latches)
Liftgat..
Categories
When these locks are set, you cannot open the rear doors from the inside.

A child safety lock is on the rear edge of each rear door. You must set the child
safety lock separately on each door.
Left-Hand Side
read more