Note:
– The power brake unit vacuum sensor cannot be removed because it is integrated with the power brake unit.
– Because the ion sensor is integrated in the ignition coil, replacing the ion sensor includes replacement of the ignition coil/ion sensor.

1. Disconnect the negative battery terminal.
2. Remove the ignition coil/ion sensor.
3. Verify that there is no damage to the ignition coil/ion sensor, and no corrosion and damage to the connector.

Relevant contents:

• Control system location, diagram, PCM and engine oil data reset [Skyactiv-G (with cylinder deactivation (e))]
• Revolution sensor, neutral sensor and engine coolant temperature (ETC) sensor [Skyactiv-G (with cylinder deactivation (e))]
• Mass air flow (MAF) sensor/intake air temperature (IAT) sensor no.1, mass air flow (MAF) sensor, intake air temperature (IAT) sensor and manifold absolute pressure (MAP) sensor [Skyactiv-G (with cylinder deactivation (e))]
• Barometric pressure (BARO) sensor, accelerator pedal position (APP) sensor and throttle position (TP) sensor [Skyactiv-G (with cylinder deactivation (e))]
• Fuel pressure sensor, air fuel ratio (A/F) sensor and heated oxygen sensor (HO2S) [Skyactiv-G (with cylinder deactivation (e))]
• Crankshaft position (CKP) sensor and camshaft position (CMP) sensor [Skyactiv-G (with cylinder deactivation (e))]
• Knock sensor (KS) and current sensor [Skyactiv-G (with cylinder deactivation (e))]
• Engine oil temperature sensor/engine oil pressure sensor and i-stop off switch [Skyactiv-G (with cylinder deactivation (e))]
• Engine oil level sensor, exhaust shutter valve position sensor and coolant control valve position sensor [Skyactiv-G (with cylinder deactivation (e))]