OBDII Code List

C0406 BUICK - Transfer Case Solenoid Valve Control Circuit High Current

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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C0406 BUICK Possible Causes

  • Faulty Transfer Case Solenoid Valve
  • Transfer Case Solenoid Valve harness is open or shorted
  • Transfer Case Solenoid Valve circuit poor electrical connection

First diagnose C0406 BUICK code

    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 C0406 BUICK code

    Labor: 1.0

    The cost of diagnosing the C0406 BUICK 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.

C0406 BUICK Possible Symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C0406 Buick Description

The rear drive clutch solenoid valve is internal to the torque transfer device housing. The rear differential clutch control module supplies battery voltage to the control circuit and ground to the low reference circuit of the solenoid valve. The solenoid valve is controlled by a pulse width modulation (PWM) signal. The solenoid valve controls the hydraulic pressure to the clutch package of the torque transfer device. The locking level of the torque transfer device depends on the engagement of the clutch package.
OBDII Code C0406 Buick - Transfer Case Solenoid Valve Control Circuit High Current -

C0406 BUICK More Information

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