Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 215

3.

CHECK STEERING ANGLE

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

With scan tool check steering angle.

Is the Steering Angle reading within ±15 degrees?

Yes

>> Go To 4

No

>> Go To 5

4.

CHECK STEERING ANGLE CHANGE

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

With scan tool check steering angle.

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?

Yes

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

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

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. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

5.

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.
Turn the ignition off.

Verify that the Steering Angle Sensor is properly installed. Refer to 8 - ELECTRICAL/RESTRAINTS/CLOCKSPRING
- INSTALLATION.

Is the Steering Angle Sensor properly installed?

Yes

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

Perform ABS VERIFICATION TEST. (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. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

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C1232–DRIVE TEST: PRESSURE SENSOR

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
During the Drive Test.

•

Set Condition:
If the Pressure Sensor fails to activate.

Possible Causes

HYDRAULIC / BRAKE SYSTEM COMPONENT INSTALLATION

INTEGRATED CONTROL UNIT

PRESSURE SENSOR (HYDRAULIC CONTROL UNIT)

Diagnostic Test

1.

CHECK FOR A DTC C1232–DRIVE TEST: PRESSURE SENSOR

NOTE: This DTC must be active for the results of this test to be valid.
Turn the ignition on.

With the scan tool, read and record DTCs.

With the scan tool, read and record Freeze Frame information.

Perform ECU initialization with drive test. Refer to ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD
PROCEDURE).

Start the engine.

With the scan tool, read and record DTCs.

Does the scan tool display: C1232–DRIVE TEST: PRESSURE SENSOR?

Yes

>> Go To 2

No

>> Refer to the INTERMITTENT CONDITION diagnostic procedure.

Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TEST-
ING)

2.

CHECK HYDRAULIC SYSTEM & BRAKE SYSTEM COMPONENT INSTALLATION & FUNCTION

Verify that the Anti-Lock Brakes Module and Hydraulic Control Unit are properly installed.

Verify that the hydraulic system is properly filled and bled.

Verify that the brake system components are installed and functioning properly.

Were any problems found?

Yes

>> Repair as necessary.

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

>> Clean contacts in HCU first if problem reoccurs replace the Integrated Control Unit in accordance with

the Service Information.

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

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C1234–DRIVE TEST: SENSOR CLUSTER INSTALLATION

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
During the Drive Test.

•

Set Condition:
If the Anti-Lock Brakes Module detects implausible Dynamics Sensor data.

Possible Causes

DYNAMICS SENSOR INSTALLATION

DYNAMICS SENSOR

ANTI-LOCK BRAKES MODULE

Diagnostic Test

1.

CHECK FOR A DTC C1234–DRIVE TEST: SENSOR CLUSTER INSTALLATION

NOTE: This DTC must be active for the results of this test to be valid.
Turn the ignition on.

With the scan tool, read and record DTCs.

With the scan tool, read and record Freeze Frame information.

Perform ECU initialization with drive test. Refer to ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD
PROCEDURE).

Start the engine.

With the scan tool, read and record DTCs.

Does the scan tool display: C1234–DRIVE TEST: SENSOR CLUSTER INSTALLATION?

Yes

>> Go To 2

No

>> Refer to the INTERMITTENT CONDITION diagnostic procedure.

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

>> Replace the Dynamics Sensor in accordance with the Service Information.

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

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C1238-DRIVE TEST: UNSUCCESSFUL

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
During the Drive Test.

•

Set Condition:
If the Anti-Lock Brakes Module detects a fault with the Steering Angle Sensor, the Pressure Sensor, or the
Dynamics Sensor.

Possible Causes

STEERING ANGLE SENSOR

PRESSURE SENSOR

DYNAMICS SENSOR

ANTI-LOCK BRAKES MODULE

Diagnostic Test

1.

DIAGNOSE & REPAIR ALL DTCs

Repair

Diagnose and repair all DTCs.

C1239–EMISSIONS ROLLS TEST ACTIVE

For a complete wiring diagram Refer to Section 8W.

Theory of Operation

The functional effects are that the output signal for all wheel speeds mimic the wheel with the highest wheel speed.

This DTC sets when the Emissions Rolls Test is active.

Close out the Emissions Rolls Test though the FCM.

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