Fault Family System: Powertrain (P-Codes) 52 SAE Codes

Cylinder Deactivation Intake Valve Circuit

Diagnostic & Technical Explanation

Code P3401 (Cylinder 1 Deactivation/Intake Valve Control Circuit/Open) reports an electrical fault - open circuit, out-of-range voltage, or a performance deviation - on the intake-side oil-control solenoid that collapses a named cylinder's intake valve for fuel-saving cylinder deactivation, whether logged per cylinder or as a bank-wide summary. A failed solenoid coil, an intake-side oil-control screen starved of switching pressure by sludge, or damaged wiring at the lifter-oil-manifold connector are the usual physical culprits.

These 52 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 52 times.

Codes in this family (52)

Code	Definition	Repair coverage
P3401	Cylinder 1 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3402	Cylinder 1 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3403	Cylinder 1 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3404	Cylinder 1 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3409	Cylinder 2 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P340A	Deactivation/Intake Valve Control Circuit Bank 1	4 ranked fixes
P340B	Deactivation/Intake Valve Control Circuit Bank 2	4 ranked fixes
P3410	Cylinder 2 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3411	Cylinder 2 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3412	Cylinder 2 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3417	Cylinder 3 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3418	Cylinder 3 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3419	Cylinder 3 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P341A	Deactivation/Intake Valve Control Circuit Performance Bank 1	4 ranked fixes
P341B	Deactivation/Intake Valve Control Circuit Performance Bank 2	4 ranked fixes
P3420	Cylinder 3 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3425	Cylinder 4 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3426	Cylinder 4 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3427	Cylinder 4 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3428	Cylinder 4 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3433	Cylinder 5 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3434	Cylinder 5 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3435	Cylinder 5 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3436	Cylinder 5 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3441	Cylinder 6 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3442	Cylinder 6 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3443	Cylinder 6 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3444	Cylinder 6 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3449	Cylinder 7 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3450	Cylinder 7 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3451	Cylinder 7 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3452	Cylinder 7 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3457	Cylinder 8 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3458	Cylinder 8 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3459	Cylinder 8 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3460	Cylinder 8 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3465	Cylinder 9 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3466	Cylinder 9 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3467	Cylinder 9 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3468	Cylinder 9 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3473	Cylinder 10 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3474	Cylinder 10 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3475	Cylinder 10 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3476	Cylinder 10 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3481	Cylinder 11 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3482	Cylinder 11 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3483	Cylinder 11 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3484	Cylinder 11 Deactivation/Intake Valve Control Circuit High	4 ranked fixes
P3489	Cylinder 12 Deactivation/Intake Valve Control Circuit/Open	4 ranked fixes
P3490	Cylinder 12 Deactivation/Intake Valve Control Circuit Performance	4 ranked fixes
P3491	Cylinder 12 Deactivation/Intake Valve Control Circuit Low	4 ranked fixes
P3492	Cylinder 12 Deactivation/Intake Valve Control Circuit High	4 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:

Procedures 2..n after the first-listed procedure
Aftermarket parts cost ranges in USD (est_parts_cost_min/max_usd)
Professional labor-hour estimates (est_labor_hours)
Step-by-step diagnostic and repair instructions
Replacement-part mappings and catalog lookups
6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)

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