P25D4 — Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 2

What Does P25D4 Mean?

P25D4 is a diagnostic trouble code indicating: Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 2. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P25D4

⚠️ Check Engine Light (MIL) illuminated
⚠️ Exhaust Camshaft Actuator Park Lock reading at zero or minimum value
⚠️ Related system not functioning or in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Open or broken wire in Exhaust Camshaft Actuator Park Lock circuit
🔍 Poor ground connection at Exhaust Camshaft Actuator Park Lock
🔍 Faulty Exhaust Camshaft Actuator Park Lock with no output signal
🔍 Disconnected or loose Exhaust Camshaft Actuator Park Lock connector
🔍 Blown fuse in related circuit

Frequently Asked Questions

What does P25D4 mean?

P25D4 indicates: Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 2. The vehicle's computer has detected that the Exhaust Camshaft Actuator Park Lock is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P25D4?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P25D4 for extended periods may cause additional problems.

How much does it cost to fix P25D4?

Repair costs for P25D4 typically range from $20 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Repair broken wire or restore ground in Exhaust Camshaft Actuator Park Lock circuit
🔧 Clean and secure Exhaust Camshaft Actuator Park Lock connector and ground points
🔧 Replace failed Exhaust Camshaft Actuator Park Lock

1
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2
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3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P25D4: Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 2