Dodge Nitro. Manual — part 219

Continuously with the ignition on.

Set Condition:

When the Anti-Lock Brake Module detects an incorrect CAN message from the Totally Integrated Power
Module (TIPM).

Diagnostic Test

1) CHECK IF TIPM CAN BUS DTCs ARE PRESENT

With the scan tool, read TIPM DTCs.

Are there any TIPM CAN BUS DTCs present?

Yes

Refer to DIAGNOSIS AND TESTING and diagnose the appropriate symptom.

Perform ABS VERIFICATION TEST.

No

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

Perform ABS VERIFICATION TEST.

U1601-MISSING APPLICATION FILE

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

When Monitored:

With the ignition on.

Set Condition:

During reflashing of the Anti-Lock Brake Module the process gets interrupted, times out or battery
voltage drops below the minimum voltage requirement.

Possible Causes

TIPM CAN BUS DTCS
ANTI-LOCK BRAKE MODULE

Possible Causes

REFLASH MODULE
ANTI-LOCK BRAKE MODULE

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

Diagnostic Test

1) CHECK FOR A DTC U1601-MISSING APPLICATION FILE

Turn the ignition on.

Connect scan tool, read DTCs.

Follow reprogramming procedure and reflash the module while maintaining voltage as noted above.

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

With the scan tool, read DTCs.

Does the scan tool display: U1601-MISSING APPLICATION FILE?

Yes

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

Perform ABS VERIFICATION TEST.

No

Repair complete.

STANDARD PROCEDURE

ABS VERIFICATION TEST

Diagnostic Test

1) ABS VERIFICATION TEST

NOTE:

This DTC must be active for the results of this test to be valid. Check for a
loose scan tool connection. Verify that battery charger is installed and
charge rate provides approximately 13.5 volts.

WARNING:

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

NOTE:

If the ABM (Anti-Lock Brake Module), SAS (Steering Angle Sensor),
Dynamics Sensor was replaced, it must be initialized using the scan tool. If
not initialized, the ABS indicator will flash continuously with no DTCs. To
initialize the ABM and clear offsets have wheels pointing straight ahead
and follow the directions on the scan tool. The drive test requires a 90°

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

1. Turn the ignition off.

2. Connect all previously disconnected components and connectors.

3. Verify all accessories are turned off and the battery is fully charged.

4. Verify that the ignition is on, with the scan tool, erase all Diagnostic Trouble Codes from All modules.
Start the engine and allow it to run for 2 minutes and fully operate the system that was indicating the
failure.

5. Turn the ignition off and wait 5 seconds. Turn the ignition on and using the scan tool, read DTCs from
all modules.

6. If any Diagnostic Trouble Codes are present, return to symptom list and trouble shoot new or recurring
symptom.

NOTE: For Sensor Signal and Pump Motor faults, the ABM must sense all 4 wheels at 12 km/h (7.5
mph) before it will extinguish the ABS indicator.

7. If there are no DTCs present after turning ignition on, road test the vehicle for at least 5 minutes.
Perform several anti-lock braking stops.

8. Again, with the scan tool read DTCs. If any DTCs are present, refer to the DIAGNOSTIC CODE
INDEX for the diagnostic test procedure and troubleshoot the new or recurring symptom.

9. If there are no Diagnostic Trouble Codes (DTCs) present, and the customer's concern can no longer be
duplicated, the repair is complete.

Are any DTCs present or is the original concern still present?

Yes

Repair is not complete, refer to appropriate symptom.

No

Repair is complete.

turn. If the Dynamics Sensor was replaced, 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).

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

2007 BRAKES

ABS Service Information - Nitro

ABS SERVICE INFORMATION

DESCRIPTION

ELECTRONIC ROLL MITIGATION (ERM)

This system anticipates the potential for wheel lift by monitoring the driver's steering wheel input and the speed
of the vehicle. When ERM determines that the rate of change of the steering wheel angle and vehicles speed are
sufficient to potentially cause wheel lift, it applies the appropriate brake and may reduce engine power to lessen
the chance that wheel lift will occur. ERM will only intervene during very severe or evasive driving maneuvers.

ERM can only reduce the chance of wheel lift occurring during severe or evasive driving maneuvers. It can not
prevent wheel lift due to other factors such as road conditions, leaving the roadway or striking objects or other
vehicles.

ANTILOCK BRAKE SYSTEM WITH TRACTION CONTROL

This vehicle uses the Continental MK25e electronic brake control system. The system includes ABS (Anti-lock
Brake System), EVBP (Electronic Variable Brake Proportioning), TCS (Traction Control System), BAS (Brake
Assist System), ERM (Electronic Roll Mitigation), TSC (Trailer Sway Control) and ESP (Electronic Stability
Program). All seven systems work together to enhance vehicle stability and control in various driving
conditions and are commonly referred to as ESP. ESP is standard

The electronic brake control system uses the following components to operate:

Integrated Control Unit (ICU) - The ICU is a combination of the Anti-Lock Brake Module (ABM) and
the Hydraulic Control Unit (HCU)

Wheel Speed Sensors (WSS) - Four sensors (one at each wheel)

Dynamics Sensor - The Dynamics Sensor includes a yaw rate sensor, (The Dynamics Sensor is located
under the center console near the center of the vehicle).

Lateral accelerometer and, on vehicles equipped with a part time transfer case (143 T-Case), a
longitudinal accelerometer.

Steering Angle Sensor (SAS) - The SAS is part of the clock spring assembly in the steering column.

Brake Pressure Sensor - The brake pressure sensor is located in the HCU and is not serviceable separate
from the HCU.

ALL-SPEED TRACTION CONTROL

The TCS is an all-speed traction control system that functions up to the maximum allowed vehicle speed. TCS
enhances vehicle stability and mobility by reducing wheel spin when accelerating on slippery surfaces. TCS
controls wheel spin by applying the brakes and/or reducing engine power.

2007 Dodge Nitro R/T

2007 BRAKES ABS Service Information - Nitro

2007 Dodge Nitro R/T

2007 BRAKES ABS Service Information - Nitro