P03F3

B Camshaft Profile Actuator C Control Circuit High Bank 1

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Power reduction
Increased fuel consumption
Check Engine Light Illuminates

Causes

Short circuit to positive in the VVT actuator control circuit
Open circuit control
VVT solenoid valve (solenoid) malfunction
Wiring Harness Problems
Engine control unit (ECU) malfunction

How to Fix

Check the integrity of the wiring harness and connectors
Check VVT solenoid resistance
Check control circuit voltage
Replace faulty VVT solenoid if necessary
Check the operation of the VVT system after repair

Related codes

P03F0 P03F1 P03F2 P03F4