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.
DTC C1858-72: Differential Fluid Pressure Deviation Low
DTC C1858-73: Differential Fluid Pressure Deviation High
To diagnose the C1858 Acura 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 AWD Control Unit monitors the Differential Fluid Pressure. The AWD Control Unit sets the OBDII code when the Differential Fluid Pressure is not to factory specifications.
Need more information on how to fix the C1858 Acura code? Get Access to Factory Service Manuals
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