Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 207

4.

RIGHT FRONT WHEEL SPEED SENSOR

Replace the Right Front Wheel Speed Sensor in accordance with the Service Information.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

CAUTION: Ensure brake capability is available before road testing.
Road test the vehicle over 40 km/h (25 m.p.h.).

NOTE: Vehicle must be driven above 40 km/h (25 m.p.h.) for set conditions to be meet.
With the scan tool, read ABS DTCs.

NOTE: The Anti-Lock Brake Module must sense ALL 4 wheels at 12 km/h (7.5 mph) before it will extinguish
the ABS indicators.

Did DTC C1047–RIGHT FRONT WHEEL PRESSURE PHASE MONITORING reset?

Yes

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

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

>> Test Complete.

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C1048-LEFT REAR WHEEL PRESSURE PHASE MONITORING

For a complete wiring diagram Refer to Section 8W.

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•

When Monitored:
During active ABS control.

•

Set Condition:
If the Anti-Lock Brakes Module detects a pressure reduction phase and the following pressure hold phase is
too long.

Possible Causes

LEFT REAR TONE WHEEL/WHEEL BEARING

WHEEL SPEED SIGNALS SWAPPED

LEFT REAR WSS

ANTI-LOCK BRAKES MODULE

Diagnostic Test

1.

COMPARE WHEEL SPEED SENSOR SIGNALS

WARNING: Ensure brake capability is available before road testing.
With the scan tool, monitor ALL the WSS speeds while an assistant drives the vehicle.

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

Does the Left Rear WSS speed differ from the other WSS speeds by 8 km/h (5 m.p.h.) or show NO
speed?

Yes

>> Go To 2

No

>> Perform the ABS Intermittent Condition diagnostic procedure in this Section.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

2.

INSPECT TONE WHEEL/BEARING

Turn the ignition off.

Visually inspect the tone wheel and bearing for damage.

•

Check the tone wheel teeth for missing teeth, cracks, and looseness. The teeth must be perfectly square, not
bent, or nicked. Check the wheel bearing for worn/looseness.

Were any problems found?

Yes

>> Repair as necessary.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

>> Go To 3

3.

CHECK WHEEL SPEED SENSOR WIRING

Check the Anti-Lock Brakes Module and Wheel Speed Sensors harness connectors for incorrectly wired connectors.

Were any problems found?

Yes

>> Repair as necessary.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

>> Go To 4

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4.

LEFT REAR WHEEL SPEED SENSOR

Replace the Left Rear Wheel Speed Sensor in accordance with the Service Information.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

CAUTION: Ensure brake capability is available before road testing.
Road test the vehicle over 40 km/h (25 m.p.h.).

NOTE: Vehicle must be driven above 40 km/h (25 m.p.h.) for set conditions to be meet.
With the scan tool, read ABS DTCs.

NOTE: The Anti-Lock Brake Module must sense ALL 4 wheels at 12 km/h (7.5 mph) before it will extinguish
the ABS indicators.

Did DTC C1048–LEFT REAR WHEEL PRESSURE PHASE MONITORING reset?

Yes

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

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

>> Test Complete.

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