P000B: "B" Camshaft Position Slow Response (Bank 1)
3 vehicles · 2 makes · $150-$4,500 repair
Most Reported On
P000B is an OBD-II diagnostic trouble code meaning “"B" Camshaft Position Slow Response (Bank 1).” The same generic SAE-defined VVT diagnostic as P000A but for the bank 1 'B' camshaft — normally the exhaust camshaft. The PCM commands the exhaust cam phaser to a target angle and compares the actual camshaft position (from the CMP sensor) against the crankshaft reference. P000B sets when the camshaft responds too slowly to the command or does not reach the commanded position within the calibrated window. This code is most commonly reported on 2009-2019 Ford Flex, 2009-2024 RAM 1500 (Tradesman, Big Horn, Lone Star, Laramie, Rebel, Limited, Sport, Express, SLT), and 2016-2024 Ford Edge (Sport, ST), with repair costs ranging from $150 to $4,500.
Common Causes
Typical Repair Cost
Based on 3 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
This is a powertrain code, so a basic OBD-II reader can read it. These read P000B.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple code reader for engine (P) codes on many compatible OBD-II vehicles. It does not support every vehicle or hybrid/EV application, and it does NOT read body, chassis or network codes; confirm exact-vehicle compatibility before buying.
- Read & clear engine (P) codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth scanner with a companion app that reads beyond the engine module — ABS, SRS and transmission — plus manufacturer-specific codes on many vehicles.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X V3.0 Elite OBD-II Scanner
by LAUNCH
Handheld scanner covering the four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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Vehicles Affected (3)
FAQ
What does P000B mean?
P000B stands for ""B" Camshaft Position Slow Response (Bank 1)." The same generic SAE-defined VVT diagnostic as P000A but for the bank 1 'B' camshaft — normally the exhaust camshaft. The PCM commands the exhaust cam phaser to a target angle and compares the actual camshaft position (from the CMP sensor) against the crankshaft reference. P000B sets when the camshaft responds too slowly to the command or does not reach the commanded position within the calibrated window.
What are the most common causes of P000B?
The most common causes of P000B are: Low or degraded oil, or oil of the wrong viscosity, starving the exhaust cam phaser, Restricted oil feed passage or clogged VCT solenoid screen, Sticking or failed exhaust cam oil control valve (VCT solenoid), Worn exhaust cam phaser, Stretched timing chain, worn guides or a weak tensioner, VCT solenoid circuit wiring / connector fault. The specific cause varies by vehicle.
How much does it cost to fix P000B?
Repair costs for P000B range from $150 to $4,500, depending on the vehicle and root cause.
Which vehicles are affected by P000B?
Au7o has documented P000B across 3 vehicle models from 2 manufacturers: Ford, RAM.
Sources (10)
- ForumTiming chain rattle - Ford Flex Forum
- ForumRattle coming from engine on a cold start - Ford Flex Forum
- ForumTiming Chain Information - Ford Flex Forum
- ForumVVT Solenoid keeps going bad — RamForum.com
- Forum5.7 VVT cam & lifter failures; the problem and the solution — RamForumZ
- articleHow to Fix Code P0011: Intake Camshaft Position Timing — EngineerFix
- articleP0011 Code: 'A' Camshaft Timing Over-Advanced (Bank 1) — CarParts.com
- Forum2.7 EcoBoost Cold Start Noise / Rattle - 2015+ Edge & MKX Generation II - Ford Edge Forum
- Forum2023 2.7 Engine Rattle. Cam Phasers? - Bronco6G Forum
- ForumCold Start Rattle - Ford Truck Enthusiasts Forums
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.