Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 219
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 whiling rotating wheel from lock to lock.
NOTE: Sensor damage can occur if wheel is turned over 720 degrees.
Rotate steering wheel to the right and the degrees will decrease and rotating steering wheel to the left the degrees
will increase.
Did the steering angle change accordingly and display less the 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 ini-
tializing ECU with wheels pointing straight ahead.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
4.
CHECK STEERING ANGLE SENSOR INSTALLATION
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 sys-
tem, 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.
Verify that the Steering Angle Sensor are properly installed. Refer to 8 - ELECTRICAL/RESTRAINTS/CLOCK-
SPRING - 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 - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Repair as necessary and clear offsets by initializing ECU with wheels pointing straight ahead.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
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C1242–G SENSOR INPUT SIGNAL PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Continuously, with ignition on, until vehicle speed exceeds 20 km/h (12.4 m.p.h.) for the first time, but not if the
sensor voltage is out of range,
Or, during diagnostic mode.
Or, if the monitoring was inhibited by a corresponding diagnostics command.
Or, if the vehicle speed has exceeded 20 km/h (12.4 m.p.h.) during the actual ignition cycle.
Or, if at least one over spinning wheel is detected.
Or, if one of the control functions is active.
•
Set Condition:
If the measured acceleration signal is higher than 0.8 g and longer than the specified detection time.
Possible Causes
DYNAMICS SENSOR INSTALLATION
DYNAMICS SENSOR OR ANTI-LOCK BRAKE MODULE
ANTI-LOCK BRAKES MODULE
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.
WARNING: Ensure brake capability is available before road testing.
Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 20 km/hr
(6 and 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 procedure in this Section.
Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TEST-
ING)
2.
CHECK THE DYNAMICS SENSOR INSTALLATION
NOTE: Dynamics Sensor installation and mounting bolt torque is crucial for proper operation.
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. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>>
NOTE: Vehicles without a Dynamics Sensor replace Anti-Lock Brake Module.
Replace the Dynamics Sensor or Anti-Lock Brake Module in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
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C1243–G SENSOR NOT INITIALIZED
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Once after ignition on.
•
Set Condition:
If the stored zero point calibration value of the longitudinal acceleration sensor is invalid.
Possible Causes
DYNAMICS SENSOR NOT CALIBRATED
DYNAMICS SENSOR
ANTI-LOCK BRAKES MODULE
Diagnostic Test
1.
PERFORM ECU INITIALIZATION
Turn the ignition on.
With the scan tool, erase ABS DTCs.
Cycle the ignition switch.
WARNING: Ensure brake capability is available before road testing.
Perform ECU initialization with drive test refer to ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD
PROCEDURE).
NOTE: The ECU Initialization process must include driving the vehicle into a 90° turn.
Park the vehicle.
>> Go To 2
2.
VERIFY IF DTC IS STILL ACTIVE
Cycle the ignition switch.
WARNING: Ensure brake capability is available before road testing.
Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 25 km/hr
(6 and 15 m.p.h.).
Park the vehicle.
With the scan tool, read ABS DTCs.
Does this DTC reset?
Yes
>>
NOTE: Vehicles without a Dynamics Sensor replace Anti-Lock Brake Module.
Replace the Dynamics Sensor or Anti-Lock Brake Module in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Perform the ABS Intermittent Condition diagnostic procedure in this Section.
Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TEST-
ING)
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
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C2100-BATTERY VOLTAGE LOW
For a complete wiring diagram Refer to Section 8W
LX
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 321
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