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LS 500h RWD
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Repair and Diagnosis
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Brakes
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Mechanical - Hydraulic
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Electronically Controlled Brake System (W/ Advanced Park) - Diagnostic Codes (3 Of 5)
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ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Advanced Park)
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DTC C124A-05: ECM Communication System Programming Failure [11/2021 - 10/2023]
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Typical Enabling Conditions
Typical Enabling Conditions
Monitor runs whenever the following DTCs are not stored
None
All of the following conditions are met
-
EEPROM read-in
Complete
IG1
On
Vehicle speed
40 km/h (24.85 mph) or more