Dodge Nitro. Manual - part 208

 

2007 Dodge Nitro R/T 

2007 BRAKES ABS - Electrical Diagnostics - Nitro

  

Fig. 72: Measuring Resistance Of (D51) Dynamics Sensor Low Data Link Circuit Between 
Dynamics Sensor Harness Connector And Anti-Lock Brakes Module Harness Connector 
Courtesy of CHRYSLER LLC 

Measure the resistance of the (D51) Dynamics Sensor Low Data Link circuit between the Dynamics 
Sensor harness connector and the Anti-Lock Brakes Module harness connector. 

Is the resistance below 5.0 ohms?  

Yes  

Replace the Dynamics Sensor in accordance with the Service Information.  

Perform ABS VERIFICATION TEST.  

No  

Repair the (D51) Dynamics Sensor Low Data Link circuit for an open.  

Perform ABS VERIFICATION TEST.  

U0126-LOST COMMUNICATION WITH STEERING ANGLE SENSOR 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

With the ignition on  

Battery voltage between 10 and 16 volts  

IOD fuse installed  

Set Condition: 

If the Anti-Lock Brakes Module fails to receive bus messages from the Steering Angle Sensor for 
approximately 500 ms. 

Diagnostic Test 

Possible Causes 

DTCs RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE
(F202) FUSED B(+) CIRCUIT OPEN
(Z937) GROUND CIRCUIT OPEN
CAN C BUS CIRCUITS OPEN OR SHORTED
STEERING ANGLE SENSOR POWER AND GROUND
STEERING ANGLE SENSOR
ANTI-LOCK BRAKES MODULE

 

2007 Dodge Nitro R/T 

2007 BRAKES ABS - Electrical Diagnostics - Nitro

  

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. 

With the scan tool, read ABS DTCs. 

Does this DTC reset?  

Yes  

Go to 2).  

No  

The condition that caused the symptom is currently not present. Inspect the related wiring for a 
possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.  

Refer to the ABS INTERMITTENT CONDITION.  

2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCs 

With the scan tool, read all active DTCs from all CAN C Bus modules. 

Does the scan tool display any active DTCs related to the conditions listed above?  

Yes  

Diagnose and repair the DTC(s). Refer to the DIAGNOSTIC CODE INDEX .  

Perform BODY VERIFICATION TEST - VER 1 .  

No  

Go to 3).  

NOTE:

Ensure the IOD fuse is installed and battery voltage is between 10 and 16 
volts before proceeding.

NOTE:

Check for CAN C hardware electrical, VIN Missing/Mismatch, battery or 
ignition related DTCs.

 

2007 Dodge Nitro R/T 

2007 BRAKES ABS - Electrical Diagnostics - Nitro

  

3) VERIFY THAT THE STEERING ANGLE SENSOR IS ACTIVE ON THE BUS 

With the scan tool, select ECU View. 

Verify that the Steering Angle Sensor is active on the bus. 

Is the Steering Angle Sensor active on the bus?  

Yes  

Go to 4).  

No  

Refer to the Stored Lost Communication test procedure. Refer to the DIAGNOSTIC CODE 
INDEX .  

Perform BODY VERIFICATION TEST - VER 1 .  

4) CHECK THE WIRING HARNESS, TERMINALS, AND CONNECTORS 

Check the Steering Angle Sensor installation. 

Visually inspect the related wiring harness. Look for any bruised, chafed, pierced, or partially broken 
wires. 

Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded 
terminals. 

Were any problems found?  

Yes  

Repair as necessary.  

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