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 P00B4 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 Radiator Coolant Temperature (RCT) sensor is a variable resistor that measures the temperature of the engine coolant in the radiator. This diagnostic checks for an open, short to ground, or an intermittent circuit condition between the Engine Control Module (ECM) and RCT sensor. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the RCT sensor is colder than −60°C (−76°F) for greater than 10 s.
Need more information on how to fix the P00B4 code? Get Access to Factory Service Manuals
Get the P00B4 code diagnosed by a professional: Find a repair shop in your area