P2BB7

Symptoms

• Unstable engine operation at idle
• Increased fuel consumption
• Incorrect temperature readings on the dashboard
• Difficulty starting the engine
• The cooling fan turns on at the wrong time

Causes

• Malfunction of coolant temperature sensor No. 6
• Open or short circuit in the sensor circuit
• Poor contact in the sensor connector
• Corroded contacts or damaged wiring
• Problems with the engine ECU

How to Fix

1. Check sensor resistance at different temperatures
2. Inspect the sensor circuit for damage
3. Check the contacts in the sensor connector and the ECU
4. Replace the coolant temperature sensor if necessary
5. Reset the error code and check for its reappearance

Related codes

Error P2BB7 by Vehicle Brand