P022B

Charge Air Cooler Bypass Control A Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Unstable operation at idle
Increased fuel consumption

Causes

Bypass solenoid malfunction
Open or short circuit in wiring harness
Problems with the engine control unit (ECU)
Contact corrosion

How to Fix

Check the integrity of the wiring harness
Check bypass solenoid resistance
Check voltage at solenoid terminals
Replace solenoid if necessary
Clean or replace damaged wires

Related codes

P022A P022C P0101