Subaru Crosstrek manuals

Subaru Crosstrek Service Manual: Note

ENGINE (DIAGNOSTICS)(H4DO) > General Description


The on-board diagnostic (OBD) system detects and indicates a fault in various inputs and outputs of the complex electronic control. Malfunction indicator light in the combination meter indicates occurrence of a fault or trouble.

Further, against any failure of sensors that would cause the vehicle to stop running, the fail-safe function is provided to ensure the minimal drivability.

The OBD system incorporated with the vehicles within this type of engine complies with OBD-II regulations. The OBD system monitors the components and the system malfunction listed in “Engine Section” which affects on emissions.

When the system decides that a malfunction occurs, malfunction indicator light illuminates. At the same time of the malfunction indicator light illumination or blinking, a DTC and a freeze frame engine conditions are stored into on-board computer.

The OBD system stores freeze frame engine condition data (engine load, engine coolant temperature, fuel trim, engine speed and vehicle speed, etc.) into on-board computer when it detects a malfunction.

Freeze frame engine condition data are stored until the DTCs are cleared. However when such malfunctions as fuel trim fault and misfire are detected with the freeze frame engine condition data stored, they are rewritten into those related to the fuel trim fault and misfire.

When the malfunction does not occur again for three consecutive driving cycles*, malfunction indicator light is turned off, but DTC remains at on-board computer.

*: One driving cycle means the period between the ignition switch ON and the ignition switch OFF after driving.

When performing diagnosis, connect the Subaru Select Monitor or general scan tool to the vehicle.

ENGINE (DIAGNOSTICS)(H4DO) > General DescriptionINSPECTIONBefore performing diagnostics, check the following item which might affect engine problems.1. BATTERY1. Check the battery. Battery > IN ...

Malfunction indicator light

Other materials:

EyeSight > Relay and FuseINSPECTION1. CHECK FUSE1. Remove the fuse and inspect visually.2. If the fuse is blown out, replace the fuse.NOTE:If the fuse is blown again, check the system wiring harness.2. CHECK RELAY1. Measure the resistance between relay terminals.Terminal No.Inspection conditionsS ...

Electrical specification
CONTROL SYSTEMS > AT Shift Lock Control SystemELECTRICAL SPECIFICATION• Model without push button ignition switchItemConnector No.Terminal No.Input/Output signalMeasured value and measuring conditionsBattery power supplyB28169 — 16 V7i846Ignition power supplyB2803210 — 15 V when ignitio ...

HVAC SYSTEM (HEATER, VENTILATOR AND A/C) > Heater CoreINSTALLATIONCAUTION:• Replace O-rings and clamps with new parts and install securely.• Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM” ...

© 2016-2023 Copyright