Mike's Workshop Manuals
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2021
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Grand Cherokee L Altitude, AWD
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Repair and Diagnosis
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Brakes
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Traction Control
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Brake System Control Module (BSCM) - DTCS C0558-00 To P05DC-00
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DTC Troubleshooting
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C121A-00-Steering Angle Sensor Not Initialized
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Set Condition
Set Condition
Steering Angle Sensor (SAS) has not been properly initialized.
Brake System Control Module (BSCM) detects an invalid signal from the Steering Angle Sensor (SAS).