Dodge Nitro. Manual — part 190

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).

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 procedure.

2) INSPECT VEHICLE, STEERING COLUMN, & INTERMEDIATE SHAFT FOR DAMAGE

Turn the ignition off.

Inspect the vehicle for damage causing tracking problems or steering wheel misalignment.

Inspect the steering column and intermediate shaft for damage.

Were any problems found?

Yes

Repair as necessary.

Perform ABS VERIFICATION TEST.

No

Go to 3).

3) CHECK STEERING ANGLE SENSOR OUTPUT

Start the engine.

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

WARNING:

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

NOTE:

If possible, check vehicle repair history for collision damage.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

With the scan tool, read the Steering Angle Sensor position.

Is the Steering Angle Sensor Position within ± 15° degrees?

Yes

Go to 5).

No

Go to 4).

4) CHECK STEERING ANGLE SENSOR INSTALLATION

Verify that the Steering Angle Sensor is properly installed.

Is the Steering Angle Sensor properly installed?

Yes

Go to 5).

No

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

Perform ABS VERIFICATION TEST.

5) RE-INITIALIZE THE ESP MODULE

Perform ECU initialization with drive test to clear offsets. Perform ABS VERIFICATION TEST.

Is DTC C123F-STEERING ANGLE SENSOR COMPARATIVE PERFORMANCE still active?

Yes

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

Go to 6).

No

Sensor was probably loose or calibrated with wheels not centered to vehicle. Test complete.

Perform ABS VERIFICATION TEST.

6) CHECK STEERING ANGLE SENSOR OUTPUT WHILE ROTATING THE STEERING
WHEEL

With the scan tool, read the Steering Angle Sensor position while rotating the steering wheel to the right
and then to the left. The Steering Angle Sensor position should decrease when rotating the steering wheel
to the right and increase when rotating the steering wheel to the left.

Did the steering angle change accordingly?

Yes

Replace the Anti-Lock Brake Module in accordance with the Service Information.

Perform ABS VERIFICATION TEST.

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.

C1240-STEERING ANGLE SENSOR OVERTRAVEL PERFORMANCE

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

When Monitored:

With ignition on, but not if a CAN time out failure is detected.

Or, if a fault is detected by the Steering Angle Sensor.

Set Condition:

If the Anti-Lock Brakes Module detects that the absolute value of the measured steering wheel angle is
greater than 720 degrees.

Possible Causes

VEHICLE DAMAGE
STEERING COLUMN/INTERMEDIATE SHAFT DAMAGE
STEERING WHEEL ALIGNMENT

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

Diagnostic Test

1) PERFORM TEST DRIVE & VERIFY DTC IS STILL ACTIVE

Turn the ignition on.

With the scan tool, erase ABS DTCs.

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).

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 procedure.

2) INSPECT VEHICLE, STEERING COLUMN, & INTERMEDIATE SHAFT FOR DAMAGE

Turn the ignition off.

Inspect the vehicle for damage causing tracking problems or steering wheel misalignment.

Inspect the steering column and intermediate shaft for damage.

Were any problems found?

STEERING ANGLE SENSOR LOOSE
STEERING ANGLE SENSOR IMPROPERLY INSTALLED (WRONG MOUNTING POSITION)
STEERING ANGLE SENSOR

WARNING:

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

NOTE:

If possible, check vehicle repair history for collision damage.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro