
The catalytic converter is installed in the exhaust system. It serves as a catalyst to reduce HC, CO and NOx in exhaust gases, thus providing cleaner exhaust.
To avoid damage to the catalytic converter:
. Keep your engine tuned-up. If you feel the engine running rough (misfiring, backfiring or incomplete combustion), have your vehicle checked and repaired by an authorized SUBARU dealer.
WARNING
The exhaust gas is very hot.
Engine exhaust gas (carbon monoxide)
Periodic inspectionsDefrosting
Select the "
"
or "
"
mode to quickly defrost or remove moisture from the windshield and front side windows
in the Subaru Ascent.
NOTE
When either defrost mode is selected in the Subaru Ascent, the air conditioning
system may activate automatically to improve ...
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 ...
Dtc p0128 coolant thermostat (engine coolant temperature below thermostat regulating temperature)
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0128 COOLANT THERMOSTAT (ENGINE COOLANT TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE)DTC detecting condition:Detected when two consecutive driving cycles with fault occur.Trouble symptom:• Thermo ...