P0016 on Jaguar
Crankshaft/Camshaft Position Correlation - Bank 1 Sensor A
P0016 on Jaguar vehicles indicates crankshaft/camshaft position correlation - bank 1 sensor a. Au7o has documented this code across 4 Jaguar models — most commonly on S-TYPE, XF, XJ. P0016 means the engine computer found that the crankshaft and camshaft position sensors on Bank 1 (Sensor A) are not lining up the way they should — the timing 'correlation' between them is out of range. These two sensors tell the computer where the pistons and valves are so it can time fuel injection and spark precisely. When their signals don't agree within tolerance, the computer sets this code. It generally indicates an engine timing issue, which may be a worn timing chain, a sticking variable valve timing component, or a sensor problem, and can cause rough running, hard starting, or potential engine damage if ignored. Typical repair costs on Jaguar range from $3,500 to $9,000, depending on the specific model and root cause.
Common Causes of P0016
- •Stretched timing chain or worn timing components (guides/tensioner)
- •Faulty camshaft position sensor or crankshaft position sensor
- •Stuck or faulty variable valve timing (VVT/VCT) actuator or solenoid
- •Low or dirty engine oil affecting the VVT actuator
- •Clogged oil control valve or restricted oil passages
- •Timing chain/belt installed one tooth off after service
- •Damaged reluctor/tone ring on the crankshaft or camshaft
- •Wiring or connector faults at the position sensors
P0016 on Jaguar by Model
Jaguar S-TYPE(1 issue)
- Timing Chain Tensioner Failure on V8 Engine2000-2008
The early AJ-V8 engines in the S-TYPE have timing chain tensioners that fail prematurely, producing a characteristic cold-start rattle. The tensioners lose hydraulic pressure overnight, allowing chain slack that wears the guides and stretches the chain progressively.
Jaguar XF(1 issue)
- Timing Chain Tensioner Failure on AJ-V82009-2015
The Jaguar AJ-V8 engines in the XF suffer from hydraulic timing chain tensioner failure, causing chain slack on cold starts. The tensioner bleed-down allows the chain to rattle against the guides, and prolonged neglect leads to stretched chains and jumped timing, risking catastrophic valve-to-piston contact.
Jaguar XJ(1 issue)
- AJ133 5.0 V8 Timing Chain Tensioner Ratchet and Plastic Guide Rail Wear2010-2015
The 5.0-litre AJ133 V8 fitted to the X351 has a widely documented timing drive weakness that has nothing to do with the earlier 4.2 AJ34's plastic tensioner story — the X350's 4.2 already ran metal tensioners and Morse chains, and merging the two engines' histories is the standard error on this nameplate. On the AJ133, the hydraulic tensioner's hardened steel plunger bears against a guide rail with a soft aluminium core and a plastic wear face. The plunger cuts a groove into that face; the ratchet that is supposed to hold tension with the engine off then cannot, and the chain slaps on start-up before oil pressure builds. There are no fault codes at the rattle stage, which is exactly why it gets ignored. Left alone, the chain can jump a tooth — giving a restricted-performance warning and misfire codes — or break, which on this interference engine destroys it. Jaguar Land Rover revised the timing components progressively, with the setup substantially reworked by around 2015-2016, so late facelift cars are lower risk than early ones.
Jaguar XK(1 issue)
- Timing Chain Tensioner Failure on AJ-V82007-2015
The AJ-V8 engine in the XK shares the same timing chain tensioner weakness found across the Jaguar V8 range. The hydraulic tensioners bleed down when the engine is off, causing the timing chains to rattle on startup and progressively stretch until timing is compromised.
Looking for P0016 on a different make?
View P0016 across all makes →Frequently Asked Questions
What does P0016 mean on Jaguar?▼
P0016 stands for "Crankshaft/Camshaft Position Correlation - Bank 1 Sensor A." P0016 means the engine computer found that the crankshaft and camshaft position sensors on Bank 1 (Sensor A) are not lining up the way they should — the timing 'correlation' between them is out of range. These two sensors tell the computer where the pistons and valves are so it can time fuel injection and spark precisely. When their signals don't agree within tolerance, the computer sets this code. It generally indicates an engine timing issue, which may be a worn timing chain, a sticking variable valve timing component, or a sensor problem, and can cause rough running, hard starting, or potential engine damage if ignored. On Jaguar specifically, this code is documented across 4 models.
What causes P0016 on Jaguar vehicles?▼
Common causes on Jaguar: Stretched timing chain or worn timing components (guides/tensioner), Faulty camshaft position sensor or crankshaft position sensor, Stuck or faulty variable valve timing (VVT/VCT) actuator or solenoid, Low or dirty engine oil affecting the VVT actuator, Clogged oil control valve or restricted oil passages. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0016 on a Jaguar?▼
Repair costs on Jaguar range from $3,500 to $9,000, depending on the specific model and root cause.
Which Jaguar models have P0016 documented?▼
Au7o has documented P0016 on 4 Jaguar models: S-TYPE, XF, XJ, XK.