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Code P1522

Quick reference

P1522 at a glance

Plain-language meaning
This code means there's a problem with the part of the engine that helps control the timing of the engine's valves. It's like a conductor in an orchestra not being able to move their arms properly.
Urgency
Moderate – It is important to address this code to avoid potential engine performance issues.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Multimeter, Wrench set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means there's a problem with the part of the engine that helps control the timing of the engine's valves. It's like a conductor in an orchestra not being able to move their arms properly.

Explanation

The P1522 code indicates an issue with the camshaft position actuator, which helps control the timing of the engine's valves. This can affect engine performance.

Technical description

The P1522 code is triggered when the Engine Control Module (ECM) detects an issue with the camshaft position actuator for bank 2 on M62 engines, or if the actuator is tight or jammed on M52 engines. This actuator is responsible for adjusting the timing of the camshaft to optimize engine performance and efficiency.

Symptoms

• Check Engine Light is on

• Rough engine idle

• Reduced engine performance

Common Causes

• Faulty camshaft position actuator

• Oil flow issues

• Wiring problems in the actuator circuit

Glossary

Camshaft: A shaft in the engine that controls the opening and closing of the engine's valves.

Actuator: A device that moves or controls a mechanism or system.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the camshaft position actuator and its wiring.

• Check for proper oil flow to the actuator.

Repair procedures

• Replace the camshaft position actuator if faulty.

• Repair or replace damaged wiring.

• Ensure proper oil flow and change oil if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Wrench set

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• BMW 5 Series

• BMW 7 Series

• BMW X5

Preventive measures

• Regular oil changes

• Routine engine maintenance

• Check and maintain proper oil levels

Error code type

Engine Performance

User experience recommendations

• Do not ignore the Check Engine Light.

• Have the vehicle inspected by a professional mechanic.

• Avoid driving the vehicle if performance issues are severe.

Warranty information

Check with the vehicle manufacturer for warranty coverage on engine components.

Historical data

The P1522 code has been commonly reported in vehicles with variable valve timing systems, particularly in older BMW models.

Urgency level

Moderate – It is important to address this code to avoid potential engine performance issues.

Testing conditions

• Engine at operating temperature

• Vehicle in idle or low-speed conditions

Component location

The camshaft position actuator is located near the camshaft on the engine, typically on the cylinder head.

FAQs

Q: Can I drive with a P1522 code?
A: It's not recommended to drive for long periods with this code as it can affect engine performance.

Q: How do I reset the P1522 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.

Optional diagnostic gear

Tools that may help diagnose P1522

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

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Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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