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 pins.
The cost to diagnose the B1591 Toyota code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
The Display and Navigation Module Display and Radio Receiver Assembly are connected by the MOST communication line. When an MOST communication error occurs between the Display and Navigation Module Display and Radio Receiver Assembly, the Diagnostic Trouble Code (DTC) will be stored.
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