What Does P005C Mean?
The ECM has detected that the exhaust ("B") camshaft profile switching actuator on Bank 2 is not responding correctly or is stuck in the off/base position. This system controls variable valve timing or valve lift to optimize performance and emissions across the RPM range. The driver may notice reduced power at higher RPMs, slightly rougher idle, decreased fuel economy, or a subtle change in engine sound during acceleration.
Common Causes
35%
Failed or stuck camshaft profile switching solenoid/actuator (Bank 2 exhaust)
25%
Dirty or sludged oil passages restricting oil flow to the cam profile mechanism
20%
Wiring or connector issue at the camshaft profile solenoid
12%
Low oil pressure or incorrect oil viscosity preventing actuator operation
8%
Mechanical failure of the camshaft profile switching pin or rocker arm assembly
Diagnostic Steps
1
Check engine oil level and condition — sludged or low oil is the most common root cause for cam profile actuator issues. Verify correct viscosity per manufacturer spec.
2
Monitor oil pressure via PID data; compare to factory spec (typically 25-65 PSI at operating temp). Low oil pressure will prevent proper actuator operation.
3
Command the Bank 2 exhaust cam profile solenoid on and off using bi-directional scan tool control while monitoring the camshaft position sensor PID. The cam timing should shift noticeably when commanded.
4
Inspect the electrical connector at the Bank 2 exhaust camshaft profile solenoid for corrosion, damaged pins, or oil contamination. Measure solenoid resistance (typically 6-13 ohms) and compare to spec.
5
If electrical tests pass, remove the solenoid and inspect the oil control valve screen/filter for debris. A clogged screen will prevent oil flow to the actuator.
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The ECM has detected that the exhaust ("B") camshaft profile switching actuator on Bank 2 is not responding correctly or is stuck in the off/base position. This system controls variable valve timing or valve lift to optimize performance and emissions across the RPM range. The driver may notice reduc...
The most common cause of P005C ("B" Camshaft Profile Control Performance/Stuck Off Bank 2) is: Failed or stuck camshaft profile switching solenoid/actuator (Bank 2 exhaust)
Typical repair costs for P005C range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Generally safe to continue driving short distances. The engine will operate on the base cam profile, resulting in reduced performance. Prolonged driving may increase emissions and fuel consumption. No immediate safety risk, but address within a few weeks to prevent potential secondary damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P005C to identify the root cause.
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Quick Info
Category
Powertrain
System
Variable Valve Timing
Difficulty
Type
Generic (SAE)
Recommended Tools
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