EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)(H4DO) > General Description
CAUTION
• Prior to starting work, pay special attention to the following:
1. Always wear work clothes, a work cap, and protective shoes. Additionally, wear a helmet, protective goggles, etc. if necessary.
2. Protect the vehicle using a seat cover, fender cover, etc.
3. Prepare the service tools, clean cloth, containers to catch grease and oil, etc.
• Vehicle components are extremely hot immediately after driving. Be wary of receiving burns from heated parts.
• When performing a repair, identify the cause of trouble and avoid unnecessary removal, disassembly and replacement.
• Before disconnecting connectors of sensors or units, be sure to disconnect the ground cable from battery.
• Always use the jack-up point when the shop jacks or rigid racks are used to support the vehicle.
• Remove contamination including dirt and corrosion before removal, installation, disassembly or assembly.
• Keep the removed parts in order and protect them from dust and dirt.
• All removed parts, if to be reused, should be reinstalled in the original positions with attention to the correct directions, etc.
• Bolts, nuts and washers should be replaced with new parts as required.
• Be sure to tighten the fasteners including bolts and nuts to the specified torque.
Preparation toolReplacing key battery
The battery inside the access key fob or transmitter of your Subaru Ascent may
gradually lose charge over time. This can become noticeable under several conditions.
The keyless access system of your Subaru Ascent begins to respond inconsistently
or with delays.
The effective operating ran ...
Inspection
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Turbine Speed SensorINSPECTION1. Set the ST between the TCM and bulkhead harness.ST 18460AA040CHECK BOARD2. Set the probe of oscilloscope to the check board connector.Connector & terminalNo. 12 (+) — No. 42 (−):(A)+ probe(B)− probe3 ...
Precautions against vehicle modification
Always consult your SUBARU dealer if
you want to install any accessory parts to
your vehicle.
CAUTION
Do not perform any of the following
modifications. Such modifications
can interfere with proper operation
of the seatbelt pretensioners.
Attachment of any equipment
(bush bar, winches, ...