Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0356IGNITION COIL A-F PRIMARY / SECONDARY CIRCUIT
P0356IGNITION COIL A-F PRIMARY / SECONDARY CIRCUIT
P0356COIL PRIMARY CIRCUIT MALFUNCTION
Manufacturer communications
10Original wording in English
FORD
Some 2014-2016 F-250 and F-350 vehicles equipped with a 6.2L engine may exhibit an illuminated MIL with DTC P0355 and/or P0356. This may be due to an open circuit in the coil-on-plug connectors for cylinders 5 and/or 6 due to interference with the intake air expansion resonator. Follow the Service Procedure steps to correct the …
BUICK, CADILLAC, CHEVROLET, GMC, SATURN
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Codes P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0351, P0352, P0353, P0354, P0355, and P0356. Technician will need to follo…
FORD, MERCURY
FORD/MERCURY: MIL ON WITH DTC P0351-P0356; MULTIPLE COIL PRIMARY CIRCUIT. BUILT ON OR BEFORE 10/03/05. SOME VEHICLES EQUIPPED WITH A 3.0L ENGINE MAY EXHIBIT A MULFUNCTION INDICATOR LAMP (MIL) ON WITH TWO OR MORE DIAGNOSTIC TROUBLE CODES (DTCS) FOR COIL ON PLUG (COP) PRIMARY CIRCUIT FAULTS. *PE
LEXUS
LEXUS: SOME VEHICLES MAY EXHIBIT A MIL ON CONDITION WITH DIAGNOSTIC TROUBLE CODES (DTC) P0351, P0352, P0353, P0354, P0355, OR P0356 (IGNITION COIL PRIMARY/SECONDARY CIRCUIT) STORED IN THE ENGINE CONTROLMODULE/ECM (SAE TERM-POWERTRAIN CONTROL MODULE/PCM). MODELS INCLUDE ES35 AND RX350. *PE
Check vehicle applicability
44A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | ENCLAVE ↗ | 2009 |
| Cadillac | CTS ↗ | 2009 |
| Cadillac | CTS ↗ | 2008 |
| Cadillac | STS ↗ | 2009 |
| Cadillac | STS ↗ | 2008 |
| Chevrolet | TRAVERSE ↗ | 2009 |
| Ford | CROWN VICTORIA ↗ | 1999 |
| Ford | CROWN VICTORIA ↗ | 1998 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Ignition Coil F Primary/Secondary Circuit Malfunction
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.