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 C1851-1E: Rear Differential Pump Motor Circuit High Current
DTC C1851-18: Rear Differential Pump Motor Circuit Low Current
DTC C1851-19: Control Module Internal Control Module Malfunction
To diagnose the C1851 Honda 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 Rear Differential Pump Motor. The AWD Control Unit sets the OBDII code when the Rear Differential Pump Motor is not to factory specifications.
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