Dodge Nitro. Manual — part 174

C1042-RIGHT FRONT TONE WHEEL PERFORMANCE

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

When Monitored:

With the ignition on.

Set Condition:

When the Anti-Lock Brake Module detects periodic drops of a Wheel Speed Sensor (WSS) signal.

Diagnostic Test

1) CHECK FOR A DTC C1042-RIGHT FRONT TONE WHEEL PERFORMANCE

Turn the ignition on.

With the scan tool, read DTCs.

Record DTC and Freeze Frame information.

With the scan tool, erase DTCs.

Cycle the ignition switch off then on.

Test drive the vehicle in a straight line to 40 km/h (25 mph).

With the scan tool, read DTCs.

Does the scan tool display: C1042-RIGHT FRONT TONE WHEEL PERFORMANCE?

Possible Causes

DIRTY TONE WHEEL/SENSOR
IMPROPER RIGHT FRONT TIRE PRESSURE/MISMATCHED TIRES
RIGHT FRONT TONE WHEEL/BEARING DAMAGE

NOTE:

This DTC must be active for the results of this test to be valid.

CAUTION: Ensure brake capability is available before road testing.

NOTE:

Vehicle must be driven above 40 km/h (25 mph) for set conditions to be
met.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

Yes

Go to 3).

No

Go to 2).

2) CHECK WHEEL SPEED SENSOR SIGNALS

Turn the ignition on.

With the scan tool, monitor and graph ALL the WSS speeds and compare graph while an assistant drives
the vehicle.

Slowly accelerate as straight as possible from a stop to 40 km/h (25 mph).

Is the Right Front WSS speed showing 0 km/h (0 mph) or not matching other wheels or showing
erratic behavior?

Yes

Go to 3).

No

Perform the ABS INTERMITTENT CONDITION diagnostic procedure.

3) CHECK FOR IMPROPER RIGHT FRONT TIRE PRESSURE/MISMATCHED TIRES

Turn the ignition off.

Check and adjust the Right Front Tire pressure.

Check and adjust all other tire pressures.

Inspect for mismatched tires on vehicle.

Is the Right Front Tire improperly inflated or mismatched tires on vehicle?

Yes

Repair as necessary.

Perform ABS VERIFICATION TEST.

NOTE:

If graph shows periodic dropouts pay close attention to the tone wheel.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

No

Go to 4).

4) CHECK THE RIGHT FRONT TONE WHEEL/BEARING FOR DAMAGE

Check the Right Front Tone Wheel/Bearing for damage.

Check the Right Front Tone Wheel for dirt.

Was the tone wheel dirty?

Yes

Clean tone wheel and sensor. Clear codes and retest.

Perform ABS VERIFICATION TEST.

No

Replace the Right Front Tone Wheel/Bearing in accordance with the Service Information.

Perform ABS VERIFICATION TEST.

C1043-LEFT REAR TONE WHEEL PERFORMANCE

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

When Monitored:

With the ignition on.

Set Condition:

When the Anti-Lock Brake Module detects periodic drops of a Wheel Speed Sensor (WSS) signal.

Diagnostic Test

1) CHECK FOR A DTC C1043-LEFT REAR TONE WHEEL PERFORMANCE

NOTE:

Check the tone wheel teeth for missing teeth, cracks, or looseness. Teeth
should be perfectly square, not bent, or nicked.

Possible Causes

DIRTY TONE WHEEL/SENSOR
IMPROPER LEFT REAR TIRE PRESSURE/MISMATCHED TIRES
AXLE SHAFT FASTENER HARDWARE
LEFT REAR TONE WHEEL/BEARING DAMAGE

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

Turn the ignition on.

With the scan tool, read DTCs.

Record DTC and Freeze Frame information.

With the scan tool, erase DTCs.

Cycle the ignition switch off then on.

Test drive the vehicle in a straight line to 40 km/h (25 mph).

With the scan tool, read DTCs.

Does the scan tool display: C1043-LEFT REAR TONE WHEEL PERFORMANCE?

Yes

Go to 3).

No

Go to 2).

2) CHECK WHEEL SPEED SENSOR SIGNALS

Turn the ignition on.

With the scan tool, monitor and graph ALL the WSS speeds and compare graph while an assistant drives
the vehicle.

Slowly accelerate as straight as possible from a stop to 40 km/h (25 mph).

Is the Left Rear WSS speed showing 0 km/h (0 mph) or not matching other wheels or showing
erratic behavior?

NOTE:

This DTC must be active for the results of this test to be valid.

CAUTION: Ensure brake capability is available before road testing.

NOTE:

Vehicle must be driven above 40 km/h (25 mph) for set conditions to be
met.

NOTE:

If graph shows periodic dropouts pay close attention to the tone wheel.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro