P3483: Cylinder 11 Deactivation/Intake Valve Control Circuit Low

P3483 is stored for a low signal on the control circuit of the cylinder 11 deactivation or intake valve actuator, in practice a short to ground. No manufacturer documents this code publicly; J2012 reserves the codes for cylinders 9 to 12 for engines with more than eight cylinders. Cylinder 11 exists only on twelve-cylinder engines; among those with shut-off are Bentley's W12, Lamborghini's Aventador V12 and, historically, Mercedes' M137. GM's analogous V8 test treats under 0.5 ohm to ground with the driver off as a fault once 20 of 25 samples agree, with the enable conditions of 11 V system voltage and 425 rpm. A grounded line can energise the actuator continuously and take cylinder 11 out at the wrong time. Siblings: P3481 (open) and P3484 (high).

Medium severity. Can I keep driving?Drive little and gently. If you hear timing chain noise or the oil light comes on, shut off the engine.

Cylinder 11 is numbered according to the manufacturer: check your engine's manual before working on it.

Symptoms

Check engine lamp on
Cylinder shut-off disabled
Possible misfire on cylinder 11

Most likely causes

Cylinder 11 control line shorted to ground
Cylinder 11 actuator shorted internally
Moisture at the actuator connector
Engine control module output faulty

What to check, in order

Start with the simplest. You can tick off each step.

Check the oil level and condition before anything else
With the connector unplugged, check whether the signal wire is making contact with ground.
Check the solenoid valve's connector
Compare commanded and actual angles in live data
Test the solenoid valve and its filter, if it has one
Check the engine timing if there is chain noise

Good to know

Repair difficulty: medium
It affects emissions.

What each character of P3483 means

P: Powertrain: engine and transmission
3: Generic or manufacturer code, depending on the range
4: Emissions
83: Specific fault in that system

Frequently asked questions

Can I keep driving with code P3483?

Drive little and gently. If you hear timing chain noise or the oil light comes on, shut off the engine.

What causes code P3483?

The most common causes are: cylinder 11 control line shorted to ground; cylinder 11 actuator shorted internally; moisture at the actuator connector.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.