Autodata 346 Verified < RELIABLE | Version >

The Camshaft Position Sensor monitors the rotational position of the camshaft. This data is sent to the PCM to determine fuel injection timing, ignition timing, and variable valve timing (VVT) control.

Under normal operation, the PCM compares the signals from the Crankshaft Position Sensor (CKP) and the Camshaft Position Sensor (CMP). If the CMP signal is erratic, missing pulses, shows a weak voltage amplitude, or is not synchronized correctly with the Crankshaft signal, the PCM triggers P0346.

If you access the AUTODATA 346 Verified module, here is exactly what the interface provides for a typical 2015-2020 4-cylinder engine.

In the fast-paced world of automotive repair, information is the most valuable tool in a technician’s arsenal. Misdiagnosing a faulty sensor or using the wrong specification for a timing belt can cost a garage hours of lost labor and a customer’s trust. This is why repair data providers have become the backbone of modern workshops. Among the vast library of technical data, one reference number consistently stands out in forums, tech bulletins, and workshop conversations: AUTODATA 346 Verified.

But what exactly is this code? Why is the "verified" status so critical? And how can this specific dataset transform your diagnostic workflow? This article dives deep into everything you need to know about Autodata 346 Verified, from its technical specifications to its real-world application on the shop floor. autodata 346 verified

The module starts with high-resolution, color-coded diagrams. Verified data includes annotations noting common failures. For example, it might highlight that the Oil Control Valve screen is prone to clogging on a specific manufacturer. Crucially, it provides verified torque specs—often differing by 15% from generic online databases.

To understand the value, let’s look at three real-world repair scenarios.

Scenario A: The Phantom P0011 (Camshaft Position A - Timing Over-Advanced)

Scenario B: The Intermittent No-Start (Hot engine only) Scenario B: The Intermittent No-Start (Hot engine only)

Scenario C: Chain Replacement on a timing-interference engine

If you ask a mechanic why they keep a copy of 3.46 handy, they will likely point to three key features:

1. Wiring Diagrams You Can Actually Read Modern diagnostic software often presents wiring diagrams as complex, hard-to-navigate digital flows. Autodata 3.46 became famous for its clear, concise, and standardized wiring diagrams. They are printable, easy to trace, and essential for tracking down parasitic drains or short circuits.

2. Timing Belt and Chain Data One of the most high-stakes jobs in a garage is a timing belt replacement. Get the tension or the locking point wrong, and you destroy the engine. Autodata 3.46 provides straightforward, step-by-step guides for timing procedures, including torque specs and locking pin locations, for thousands of engines. It is often the first place a technician looks before turning a single bolt. easy to trace

3. Service Resets and Adjustments Before every service function was locked behind a manufacturer paywall or required an internet connection, Autodata provided the manual procedures for resetting service lights, adjusting handbrakes, and bleeding ABS systems. For older vehicles, this data is still 100% accurate and invaluable.

The success of AUTODATA 346 Verified has paved the way for Autodata to apply the "Verified" tag to other complex modules (e.g., ADAS calibration 789, HV battery isolation 201). The industry is moving away from static service manuals toward dynamic, peer-reviewed, verified data.

Why? Because modern cars are no longer mechanical; they are algorithmic. A camshaft correlation DTC (P0016) isn't just a mechanical fault—it is a math equation comparing two rotating assemblies. Only verified data, like that found in module 346, provides the diagnostic math you need to solve the equation correctly the first time.