Dodge Nitro. Manual - part 254

Fig. 88: Identifying Passenger Side Front Seat Adjuster, Seat Weight Sensor, Nuts & Seat Track 
Risers 
Courtesy of CHRYSLER LLC 

6. With the alignment tool securing the body of the seat weight sensor (2), remove the nut (4) that secures 

the sensor stud to the seat track riser (5).  

7. Transfer the special tool to each weight sensor, one at a time, and remove the nuts that secure the sensor 

studs to the seat track risers until all four nuts have been removed.  

8. Carefully separate the seat track risers from the seat weight sensor studs.  

9. Remove the two nuts (3) that secure the sensor to the studs on the lower track of the seat adjuster (1).  

10. Remove the seat weight sensor from the seat adjuster.  

INSTALLATION 

SEAT WEIGHT SENSOR 

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable 
the Supplemental Restraint System (SRS) before attempting any steering 
wheel, steering column, airbag, Occupant Classification System (OCS), 
seat belt tensioner, impact sensor, or instrument panel component 
diagnosis or service. Disconnect and isolate the battery negative (ground) 
cable, then wait two minutes for the system capacitor to discharge before 
performing further diagnosis or service. This is the only sure way to 
disable the SRS. Failure to take the proper precautions could result in 
accidental airbag deployment.

WARNING:

To avoid serious or fatal injury on vehicles equipped with the Occupant 
Classification System (OCS), do not modify the front passenger seat 
assembly or center floor console in any way. Do not use any prior year, 
subsequent year, secondary or aftermarket seat trim covers. At no time 
should any Supplemental Restraint System (SRS) or OCS component be 
modified or replaced with any part except those which are specified for 
the particular vehicle application . Failure to observe these precautions 
could cause an OCS miscalibration condition, which may result in the 
passenger airbag failing to deploy when required or deploying when not 
required.

WARNING:

To avoid serious or fatal injury, never strike or drop a seat weight sensor 
or the passenger side front seat assembly to which the sensors are 
secured as it can damage the sensors or affect their calibration. The seat 
weight sensors and the passenger side front seat assembly must be 
handled with care to avoid damage to the sensors. Do not sit upon or 
place any loads upon a passenger side front seat while it is removed from 
its mounts in or outside of the vehicle. If an individual sensor is dropped 
or damaged, replace the sensor with a new and unused unit. If a seat has 

 

2007 Dodge Nitro R/T 

2007 RESTRAINTS Service Information - Nitro

  

Fig. 89: Identifying Passenger Side Front Seat Adjuster, Seat Weight Sensor, Nuts & Seat Track Risers 
Courtesy of CHRYSLER LLC 

1. Position the seat weight sensor (2) over the studs on the lower track of the passenger side front seat 

adjuster (1).  

2. Install and tighten the two nuts (3) that secure the sensor to the studs. Tighten the nuts to 28 N.m (21 ft. 

lbs.).  

3. Carefully position the seat track risers (5) over all four seat weight sensor studs. 

been dropped during removal or loaded while removed from its mounts, 
replace each of the seat weight sensors with new and unused units. 
Failure to observe this warning could result in an accidental, incomplete, 
or improper passenger side front supplemental restraint deployment.

WARNING:

To avoid serious or fatal injury on vehicles equipped with the Occupant 
Classification System (OCS), any time the passenger side front seat 
assembly has been removed or loosened from the vehicle for service of 
any vehicle component or system the Occupant Classification System 
(OCS) Verification Test must be performed using a diagnostic scan tool 
and the Occupant Classification Seat Weight special tool following 
reinstallation. Refer to the appropriate diagnostic procedures. Failure to 
observe this warning could result in an accidental, incomplete, or 
improper passenger side front supplemental restraint deployment.

 

2007 Dodge Nitro R/T 

2007 RESTRAINTS Service Information - Nitro

  

Fig. 90: Strain Gauge Alignment Tool (Special Tool No. 9689) Used To Secure Body Of Seat Weight 
Sensor 
Courtesy of CHRYSLER LLC 

CAUTION: A strain gauge alignment tool (Special Tool No. 9689) (2) must be 

used to secure the body of the seat weight sensor (1) from any 
rotation during removal or installation of the nut that secures the 
sensor stud to the seat track riser. In addition, the sensor fasteners 
should always be serviced using hand tools ONLY, and not electric 
or pneumatic power tools. Failure to observe these cautions may 
result in irreversible sensor damage requiring sensor replacement.

 

2007 Dodge Nitro R/T 

2007 RESTRAINTS Service Information - Nitro

  

Fig. 91: Identifying Center Fork & Tool Support Yoke 
Courtesy of CHRYSLER LLC 

4. Install the strain gauge alignment tool (Special Tool 9689) on the sensors by inserting the center fork (1) 

of the tool between the flats on each side of the sensor body and inside of the cage, then seating the tool 
support yoke (2) firmly against the outside of the sensor cage.  

5. With the alignment tool securing the body of the seat weight sensor, install and tighten the nut that 

secures the sensor stud to the seat track riser. Tighten the nut to 44.5 N.m (33 ft. lbs.).  

6. Transfer the special tool to each weight sensor, one at a time, then install and tighten the nuts that secure 

each of the four sensor studs to the seat track risers until all four nuts have been installed and tightened.  

7. From the underside of the seat, reconnect the seat wire harness to the connector receptacle of the seat 

track position sensor located on the inboard side of the inboard seat adjuster upper track near the rear of 
the seat track.  

8. Reconnect the seat wire harness to the connector receptacles of each of the four weight sensors.  

9. Reinstall the passenger side front seat into the vehicle. Refer to INSTALLATION .  

10. Do not reconnect the battery negative cable at this time. The Supplemental Restraint System (SRS) 

verification test procedure should be performed following service of any SRS component. See 
VERIFICATION TEST - SUPPLEMENTAL RESTRAINT SYSTEM.  

11. Following successful completion of the SRS verification test procedure, perform the Occupant 

Classification System (OCS) Verification Test using a diagnostic scan tool and the Occupant 

 

2007 Dodge Nitro R/T 

2007 RESTRAINTS Service Information - Nitro