Dodge Nitro. Manual — part 191

Yes

Repair as necessary.

Perform ABS VERIFICATION TEST.

No

Go to 3).

3) CHECK STEERING ANGLE CHANGE

Turn steering wheel so wheels point in a straight ahead position.

With scan tool check steering angle if reading travels to 720 degrees while rotating wheel from lock to
lock.

Rotate steering wheel to the right and the degrees will decrease and rotate steering wheel to the left and
the degrees will increase.

Did the steering angle change accordingly and display less than 720 degrees from lock to lock?

Yes

Go to 4).

No

Replace the Steering Angle Sensor in accordance with the Service Information and clear offsets by
initializing ECU with wheels pointing straight ahead.

Perform ABS VERIFICATION TEST.

4) CHECK STEERING ANGLE SENSOR INSTALLATION

NOTE:

Sensor damage can occur if wheel is turned over 720 degrees.

WARNING:

To avoid personal injury or death, on vehicles equipped with
airbags, disable the supplemental restraint system before attempting
any steering wheel, steering column, airbag, occupant classification
system, 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 supplemental
restraint system. Failure to take the proper precautions could result
in accidental airbag deployment.

NOTE:

Proper Steering Angle Sensor installation is crucial for proper operation.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

Verify that the Steering Angle Sensor is properly installed. Refer to INSTALLATION .

Is the Steering Angle Sensor properly installed?

Yes

Replace the Steering Angle Sensor and clear offsets by initializing ECU with wheels pointing
straight ahead, in accordance with the Service Information.

Perform ABS VERIFICATION TEST.

No

Repair as necessary and clear offsets by initializing ECU with wheels pointing straight ahead.

Perform ABS VERIFICATION TEST.

C1242-G SENSOR INPUT SIGNAL PERFORMANCE

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

When Monitored:

Continuously, with ignition on and vehicle speed present.

Set Condition:

If the measured acceleration and calculated signal differs or have opposite signs.

Diagnostic Test

1) VERIFY DTC IS ACTIVE

Turn the ignition on.

With the scan tool, read and record ABS DTCs.

With the scan tool, read and record Environmental Data (EV Data).

With the scan tool, erase ABS DTCs.

Cycle the ignition switch.

Perform ECU initialization with drive test. Perform ABS VERIFICATION TEST.

Possible Causes

DYNAMICS SENSOR INSTALLATION
DYNAMICS SENSOR

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity greater than 20
km/hr (12 m.p.h.).

Park the vehicle.

With the scan tool, read ABS DTCs.

Does this DTC reset?

Yes

Go to 2).

No

Perform the ABS INTERMITTENT CONDITION diagnostic proceduren.

2) CHECK THE DYNAMICS SENSOR INSTALLATION

Turn the ignition off.

Check the Dynamics Sensor for damaged, modified, and bent mounting brackets.

Check the Dynamics Sensor mounting bolts for a loose or over tightened condition.

Were any problems found?

Yes

Repair as necessary.

Perform ABS VERIFICATION TEST.

No

Replace the Dynamics Sensor in accordance with the Service Information.

Perform ABS VERIFICATION TEST.

C1243-G SENSOR NOT INITIALIZED

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

WARNING:

To avoid personal injury or death, check brake capability is available
before road testing.

NOTE:

Dynamics Sensor installation and mounting bolt torque is crucial for
proper operation.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

When Monitored:

Once after ignition on.

Set Condition:

If the stored zero point calibration value of the longitudinal acceleration sensor is invalid.

Diagnostic Test

1) PERFORM ECU INITIALIZATION

Turn the ignition on.

With the scan tool, erase ABS DTCs.

Cycle the ignition switch.

Perform ECU initialization with drive test. Perform ABS VERIFICATION TEST.

Park the vehicle.

Go to 2).

2) VERIFY IF DTC IS STILL ACTIVE

Cycle the ignition switch.

Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and
25 km/h (6 and 15 mph).

Possible Causes

DYNAMICS SENSOR NOT CALIBRATED
DYNAMICS SENSOR
ANTI-LOCK BRAKES MODULE

WARNING:

To avoid personal injury or death, check brake capability is available
before road testing.

NOTE:

The ECU Initialization process must include driving the vehicle into a 90°
turn.

WARNING:

To avoid personal injury or death, check brake capability is available
before road testing.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro