Dodge Nitro. Manual - part 537

Fig. 4: Speed Control Switch 
Courtesy of CHRYSLER LLC 

Mounting hole (1) uses a screw. Depending on model line, mounting holes (2) may use either two screws, or 
one screw and a locating pin. 

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Speed Control - Nitro

  

Fig. 5: Speed Control Switch Mounting Screws
Courtesy of CHRYSLER LLC 

1. Connect electrical connector to speed control switch.  

2. Install speed control switch mounting screws.  

3. Tighten screws (1) to 1.6 N.m (15 in. lbs.). Make sure rubber seal is in place around switch. 

Fig. 6: Horn Switch 
Courtesy of CHRYSLER LLC 

4. Install horn switch.  

5. Install three mounting fasteners.  

6. Connect electrical connector to clockspring.  

7. Install driver airbag. Refer to INSTALLATION . 

8. Reconnect battery using Airbag System Test procedure in Restraints. Refer to DIAGNOSIS AND 

TESTING .  

9. Close hood.  

10. Verify vehicle and system operation. 

WARNING:

Do not connect battery negative cable yet. Refer first to airbag 
system test. Refer to DIAGNOSIS AND TESTING .

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Speed Control - Nitro

  

2007 ACCESSORIES AND EQUIPMENT

Heated Glass - Service Information - Nitro 

HEATED GLASS - SERVICE INFORMATION 

DESCRIPTION 

REAR WINDOW DEFOGGER (EBL) SYSTEM 

Fig. 1: Identifying Vertical Bus Bars, Grid Lines & Rear Window 
Courtesy of CHRYSLER LLC 

The rear window defogger system, also known as electric backlight (EBL), consists of two vertical bus bars (1) 
and a series of grid lines (2) fired onto the inside surface of the rear window (3). 

The EBL system is turned on or off by a push-button switch located in the A/C-heater control. Refer to 
DESCRIPTION . 

OPERATION 

REAR WINDOW DEFOGGER (EBL) SYSTEM 

CAUTION: Grid lines can be damaged or scraped off with sharp instruments. Care 

should be taken in cleaning glass or removing foreign materials, decals or 
stickers. Normal glass cleaning solvents or hot water used with rags or 
toweling is recommended.

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Heated Glass - Service Information - Nitro

  

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Heated Glass - Service Information - Nitro

  

Fig. 2: Identifying Push-Button Switch & A/C-Heater Control 
Courtesy of CHRYSLER LLC 

The electric backlight (EBL) system is controlled by a momentary push-button switch (1) located on the A/C-
heater control (2) in the instrument panel center bezel. When the rear window defogger switch is pressed to the 
On position with the ignition switch in RUN, the switch sends a request signal over the CAN-IHS bus to the 
totally integrated power module (TIPM), which provides a ground path to energize the coil in the EBL relay. 
When energized, the EBL relay provides battery current through a fuse to the rear window defogger grid lines 
and to the heated side view mirrors, when equipped. The grid lines heat the glass to help clear the rear window 
and side mirror surfaces of fog or frost. 

An amber indicator (3) in the A/C-heater control will illuminate to indicate when the EBL system is operating. 

The EBL system will be automatically turned off after an initial programmed time interval of about 10 minutes 
as long as the ignition switch is in RUN. After the initial time interval has expired, if the rear window defogger 
switch is pressed to the On position again during the same ignition cycle, the EBL system will automatically 
turn off after about 5 minutes. The EBL system will also turn off if the ignition switch is turned to any position 
other than RUN or by manually pressing the rear window defogger switch a second time. 

Repair of the rear window defogger grid lines, bus bars, terminals or pigtail wires can be accomplished using 
the Mopar® Rear Window Defogger Repair Kit (Part Number 04549275) or equivalent. See STANDARD 
PROCEDURE. 

Circuit protection for the EBL system is provided by fuse 13 located in the TIPM. 

DIAGNOSIS AND TESTING 

REAR WINDOW DEFOGGER (EBL) SYSTEM 

NOTE:

The EBL system turns off automatically after 10 minutes of initial operation. 
Each following activation cycle of the EBL system will last 5 minutes.

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Heated Glass - Service Information - Nitro