P002F

Code

Generic P — Powertrain

B Camshaft Profile Actuator A Control Circuit High Bank 2

Brand: Generic

Type: P — Powertrain

Views: UK: 19 EN: 678 RU: 32

AI status

Completed

ready

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Page language: EN

Causes

Damaged or corroded connector or pins at the camshaft actuator
Short to battery voltage (B+) in the actuator control wire
Faulty camshaft profile actuator (solenoid) with internal short or open
Broken or chafed wiring harness (exposed conductor contacting B+ or ignition feed)
Poor ground or ECM driver fault (internal short or high-output issue)
Water intrusion or contamination in connector causing high resistance/voltage reading

Symptoms

Check Engine Light (MIL) illuminated
Reduced engine performance or rough idle if actuator stuck or later faults set
Possible hesitation or poor fuel economy under some conditions
Stored diagnostic trouble code(s) related to camshaft actuator control (P002F)

What to check

Read freeze-frame and stored data with a capable scan tool (confirm P002F current/pending and related codes)
Visually inspect Bank 2 cam actuator connector, wiring harness and nearby components for damage, chafing, corrosion, or fluid intrusion
Check battery voltage (should be ~12–14 V) and verify charging system stability
Back-probe the actuator control connector and measure voltage with key ON and engine OFF, then while commanding the solenoid ON/OFF with a scan tool
Measure resistance of the actuator solenoid (unplugged) and compare to specification
Wiggle test harness while monitoring live data/voltage to reproduce fault

Signal parameters

Typical solenoid coil resistance (varies by vehicle): roughly 6–30 Ω (measure unplugged)
Control circuit behavior (common low-side driver): OFF ~ battery voltage (11–14 V across control pin to ground), ON ~ pulled low / pulse to ~0–0.5 V (when ECM grounds the circuit)
When commanded by scan tool the circuit should switch between ~0 V (active) and battery voltage (inactive). A persistent high-voltage reading when the ECM should be pulling low indicates a short to B+ or open/driver fault
Expected duty-cycle/pulse width varies by model; compare commanded duty cycle vs actual actuator response with manufacturer data

Diagnostic algorithm

Use a scan tool to confirm P002F and note freeze-frame data; clear codes and attempt to re-run in controlled conditions.
Visually inspect the Bank 2 cam actuator connector and wiring for damage, corrosion, loose pins, or contamination; repair any obvious issues.
With ignition ON (engine OFF) back-probe the control wire at the actuator connector: record voltage. Command the actuator ON with a scan tool and observe voltage change. Expected: near battery voltage when OFF and pulled low (~0–0.5 V or pulsed) when ON. If voltage remains high when commanded ON, suspect short to B+ or ECM driver problem.
Unplug the actuator and measure solenoid coil resistance to ground and between terminals. Compare to specification. An open or shorted coil indicates a failed actuator.
Perform a powered wiggle test of the harness while monitoring voltage/scan tool for intermittent faults. Repair chafing or pinched sections.
If wiring appears intact, perform a continuity test from the actuator control pin back to the ECM connector for shorts to B+ and for an open to ECM pin. Check for short to battery or other circuits.
If wiring and actuator test good, inspect or test ECM driver output (refer to manufacturer procedures). Some manufacturers supply a replacement ECM test or bench procedure; follow safety protocol.
After repairs or component replacement (actuator, wiring, connector, or ECM if confirmed faulty), clear codes and perform a road test and extended monitoring to verify the fault is resolved.

Likely causes

Wiring short to battery on the Bank 2 actuator control wire
Corroded/loose connector at the Bank 2 actuator
Failed camshaft profile actuator (solenoid) on Bank 2
ECM driver failure for the Bank 2 actuator

Fault status

⚠️ Status

ECM reports high voltage on Camshaft Profile Actuator A control circuit — Bank 2. Control circuit voltage exceeds expected threshold indicating possible short to battery or driver/actuator fault.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0-3.0 hours