P2CFB

Belt Integrated Starter Generator Belt Tensioner Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Problems with the start-stop system
Reduced efficiency of regenerative braking
Unstable generator operation
Hybrid system warning

Causes

Open or short circuit in tensioner control circuit
Tensioner solenoid valve malfunction
Problems with the engine control unit
Wiring harness damage
Contact corrosion

How to Fix

Check the integrity of the tensioner control circuit
Test solenoid valve resistance
Inspect connectors and wiring for damage
Check the voltage at the tensioner connector
If necessary, replace the belt tensioner

Related codes

P2CFA P2CFC P0A80