P1358 — 8 documented meanings by make

P1358 does not mean the same thing on every car — manufacturers reuse the number for different faults. 12 makes document it: Audi, BMW, Chevrolet (USA), Citroen, Ford, Mazda, Peugeot, SEAT, Skoda, Toyota, Volkswagen, Volvo. Find your make below.

P1358 on Audi, SEAT, Skoda, Volkswagen

On Audi, SEAT, Skoda, Volkswagen vehicles P1358 is documented as: Ignition circuit, cylinder 2, open circuit. P1358 is stored when the ECU sees open circuit on ignition coil or spark circuit (cylinder 2). That describes how the circuit is behaving, not which part has failed — the wiring, the connector and the component itself can all produce it, which is why the checks below start with the cheapest.

Usually one of: Broken wire, most often at a flex point such as a door hinge or engine mount; Corroded or pushed-back terminal in the connector; Blown fuse on the supply side; Component failed with an internally open winding or element.

Check first, cheapest first:

1. Check the relevant fuse first — it is the cheapest thing that produces this code
2. Unplug and inspect both halves of the connector for corrosion and terminal fit
3. Continuity-test the wire end to end while flexing the loom by hand
4. Measure the component itself against its specification
5. Repair the break or replace the component, whichever the measurement points to

Related Audi, SEAT, Skoda, Volkswagen codes:

P1358 on BMW

On BMW vehicles P1358 is documented as: Misfire during start cylinder 9. P1358 points at engine misfire (cylinder 9). The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.

Usually one of: Worn or fouled spark plugs; Failed ignition coil on that cylinder; Injector blocked or leaking; Loss of compression — worn valve or head gasket; Unmetered air leaking into the intake.

Check first, cheapest first:

1. Swap the coil with a neighbouring cylinder and see whether the misfire follows it — this identifies a coil fault in minutes and costs nothing
2. Pull the plug on that cylinder and read its condition
3. Swap the injector the same way if the misfire stayed put
4. Check for vacuum leaks around the intake
5. Compression-test the cylinder if the electrical and fuel sides are both good

Related BMW codes:

P1358 on Chevrolet (USA)

On Chevrolet (USA) vehicles P1358 is documented as: IC output high/pulse detected when GND_cylinder 8. P1358 is stored when the ECU sees signal too high on the circuit named in the code. That describes how the circuit is behaving, not which part has failed — the wiring, the connector and the component itself can all produce it, which is why the checks below start with the cheapest.

Usually one of: Open ground for the sensor, letting the signal float up; Signal line shorted to a supply voltage; Sensor failed open, which the module reads as maximum; Connector fault interrupting the return path.

Check first, cheapest first:

1. Read the live value and compare with what the conditions should produce
2. Check the sensor ground continuity back to the module
3. Unplug the sensor: if the reading changes, the wiring is intact and the sensor is suspect
4. Inspect the connector for corrosion or a spread terminal
5. Replace the sensor once ground and signal wiring are confirmed good

Related Chevrolet (USA) codes:

P1358 on Citroen, Peugeot

On Citroen, Peugeot vehicles P1358 is documented as: Ignition coil A control. P1358 points at ignition coil or spark circuit. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.

Related Citroen, Peugeot codes:

P1358 on Ford

On Ford vehicles P1358 is documented as: Ignition diagnostic monitor signal out of self-test range (no CPU OK).

Related Ford codes:

P1358 on Mazda

On Mazda vehicles P1358 is documented as: IDM signal out of self-test range.

Related Mazda codes:

P1358 on Toyota

On Toyota vehicles P1358 is documented as: Exhaust VVT sensor/camshaft position sensor circuit, bank 1. P1358 points at camshaft timing or VVT (bank 1). The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.

Related Toyota codes:

P1358 on Volvo

On Volvo vehicles P1358 is documented as: Ignition coil 5 primary. P1358 points at ignition coil or spark circuit. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.

Related Volvo codes:

Which one is yours

A generic OBD reader gives you the number, not which of these meanings your manufacturer assigned to it. To get to the specific one:

1. Use a brand-specific scanner — VCDS for VAG, INPA or ISTA for BMW, XENTRY for Mercedes, Forscan for Ford. It shows the manufacturer's own text rather than the generic one.
2. Read all stored codes together — the neighbouring ones usually point at which system is involved and narrow the list.
3. Check freeze-frame data: the RPM, temperature and load at the moment it triggered indicate which system was active.
4. If you have no brand scanner, tell me the make and model below and I will tell you which of these applies to your car.

Code family

P1xxx is manufacturer-specific code (VW/Audi, BMW, Mercedes, Toyota etc. have different meanings for the same code number).

Severity

Manufacturer-specific codes need a brand scanner (VCDS for VAG, INPA for BMW, STAR for Mercedes).

That is what holds for P1358 in general. From here it depends on your engine — tell me which car it is and what it does, and I will give you the steps for it: real procedures, torque figures and diagrams instead of general advice.