Front Boosted Voltage
Table of contents
C1939 LEXUS Possible Causes
- Faulty Active Stabilizer Converter
- Faulty Battery (for active stabilizer)
- Active Stabilizer Converter harness is open or shorted
- Active Stabilizer Converter circuit poor electrical connection
- Faulty Front Active Stabilizer Control ECU
How do I fix code C1939 LEXUS?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the C1939 LEXUS code
The cost of diagnosing the C1939 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C1939 LEXUS Description
The Active Stabilizer Converter supplies operating power to the Front Active Stabilizer Control ECU from the Front Active Stabilizer Control Actuator. Also, when the battery (for active stabilizer) voltage is low, the Active Stabilizer Converter charges it. If a problem occurs in the Front Active Stabilizer Control ECU, Active Stabilizer Converter, battery (for active stabilizer) and PIG power source circuit, DTCs C1939/32 and C193C/32 are stored.