Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
To diagnose the C0359 GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
The 4WD LO circuit is used to notify the Powertrain Control Module (PCM) that the vehicle is in 4WD low range. The PCM supplies 12 volts to this circuit. The Transfer Case Shift Control Module grounds this circuit when the vehicle is in 4WD low range.
This DTC detects a short to ground, short to voltage, or an open in the 4WD LO circuit.
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