P002D
B Camshaft Profile Control Circuit/Open Bank 2P002D is a generic OBD-II powertrain diagnostic trouble code: B Camshaft Profile Control Circuit/Open Bank 2. It is logged by the engine control unit when the ckp/cmp monitor detects that a specific fault threshold has been exceeded — typically resulting in the malfunction-indicator lamp (MIL / check-engine light) being illuminated.
What P002D means
P002D is a generic OBD-II powertrain code set when the Powertrain Control Module (PCM) detects an open circuit condition in the 'B' camshaft profile control circuit on Bank 2 — the cylinder bank that does not contain cylinder number 1. The 'B' designation refers to the exhaust camshaft on DOHC engines.
Variable Valve Timing systems rely on the PCM commanding an oil control solenoid to hydraulically shift the camshaft follower between low-lift and high-lift lobes. An open circuit means the current loop is broken — the PCM cannot deliver control current to the solenoid at all. This leaves the camshaft locked in its default (usually low-lift) profile, degrading high-RPM power and fuel efficiency. Unlike the 'Low' or 'High' variants, an open fault is most often caused by a physically broken wire, a disconnected connector, or a solenoid coil that has gone open internally. Addressing this promptly prevents prolonged operation on a single fixed cam profile, which can increase engine temperatures and long-term wear.
Common causes
Most-frequently reported root causes when P002D is logged.
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1
Broken or severed wire in the Bank 2 exhaust camshaft OCS control circuit
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2
Disconnected or improperly seated harness connector at the oil control solenoid
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3
Open solenoid coil (internal wire break) — solenoid coil resistance reads OL (infinite)
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4
Corroded or high-resistance connector pins creating an effective open circuit
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5
Faulty VVT actuator preventing the PCM from completing the control loop
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6
Contaminated or insufficient engine oil starving the hydraulic actuator of pressure
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7
PCM internal driver failure for the Bank 2 B-cam circuit (uncommon)
Symptoms drivers notice
How to diagnose P002D
A typical diagnostic flow when this code is present.
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1
Retrieve all DTCs with freeze-frame data; note related codes such as P002E or P002F that may indicate additional circuit faults
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2
Inspect engine oil level and quality; top up or change if low or contaminated before electrical diagnosis
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3
Visually trace the Bank 2 exhaust OCS wiring from the solenoid to the ECM, looking for obvious breaks, rodent damage, or chafing against hot/sharp surfaces
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4
With ignition off and solenoid unplugged, measure solenoid coil resistance — an open reading (OL) confirms internal solenoid failure requiring replacement
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5
With ignition on, back-probe the control wire at the solenoid connector and check for battery reference voltage; absence of voltage indicates a break in the supply wire
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6
Check wiring continuity end-to-end from solenoid connector back to the ECM pin using the vehicle wiring diagram; repair any breaks found
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7
After repairs, clear codes and run a drive cycle to confirm the fault does not return
Related powertrain codes
- P000A — A Camshaft Position Slow Response Bank 1
- P000B — B Camshaft Position Slow Response Bank 1
- P000C — A Camshaft Position Slow Response Bank 2
- P000D — B Camshaft Position Slow Response Bank 2
- P0010 — A Camshaft Position Actuator Circuit (Bank 1)
- P0011 — A Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
Frequently asked questions
What is the difference between P002D (Open) and P002E (Low) for Bank 2?
P002D indicates a completely broken circuit with no current path, while P002E means current is present but the voltage is below the expected control range. An open is usually a physical wire break or disconnected plug; a low voltage fault more often points to a weak ground, partial short to ground, or a failing solenoid driver.
Which camshaft does Bank 2 refer to on a V6 or V8?
Bank 2 is the cylinder bank opposite to cylinder number 1. On most longitudinally-mounted V-engines this is the firewall-side bank, but always verify with the vehicle's service manual as layouts differ between manufacturers.
Can low engine oil trigger P002D?
Low oil can starve the VVT actuator of hydraulic pressure and leave the system unresponsive, which the PCM may interpret as an open circuit condition. Always check oil level first as it is the quickest and cheapest thing to rule out.
Does P002D affect emissions testing?
Yes. With the MIL illuminated, the vehicle will automatically fail a visual emissions inspection in jurisdictions that check for active warning lights. The code should be diagnosed and resolved before any emissions test.
Disabling P002D in software
RaceTune can permanently disable P002D — and any other OBD-II diagnostic trouble code — on every ECU family we support. The monitor is disabled inside the ECU itself, so the fault stops being logged: the warning light stays off and the engine never enters limp mode for this code. The change is tied to your exact software version.
Software modifications affect emissions compliance and are not road-legal in many jurisdictions. RaceTune service files are intended for motorsport, off-road, and export use.
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