EXHAUST(H4DO) > Front Exhaust Pipe
DISASSEMBLY
1. Remove the front oxygen (A/F) sensor and rear oxygen sensor from front exhaust pipe. Front Oxygen (A/F) Sensor > REMOVAL">
Rear Oxygen Sensor > REMOVAL">
2. Remove the center exhaust pipe from the front exhaust pipe.

3. Remove each cover from the front exhaust pipe.

(A) | Front exhaust pipe upper cover | (E) | Front catalytic converter lower cover LH | (H) | Front exhaust pipe side cover LH (rear) |
(B) | Front catalytic converter upper cover LH | (F) | Front exhaust pipe lower cover | (I) | Front exhaust pipe side cover RH (front) |
(C) | Front catalytic converter upper cover RH | (G) | Front exhaust pipe side cover LH (front) | (J) | Front exhaust pipe side cover RH (rear) |
(D) | Front catalytic converter lower cover RH |
Removal
InspectionConditions in which front passenger's SRS frontal airbag is activated
The Subaru Ascent is equipped with an intelligent SRS frontal airbag system that
activates based on real-time analysis of the front passenger seat conditions. The
front passenger's SRS frontal airbag is designed to deploy during an impact when
specific criteria are met, ensuring optimal sa ...
Disassembly
MANUAL TRANSMISSION AND DIFFERENTIAL(5MT) > Drive Pinion Shaft AssemblyDISASSEMBLYNOTE:Attach a cloth to the end of driven shaft (on the frictional side of the thrust needle bearing) to prevent damage during disassembly or reassembly.1. Flatten the tab of the lock nut. Remove the lock nut with ST ...
Dtc p0037 a/f / o2 heater control circuit low bank 1 sensor 2
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0037 A/F / O2 HEATER CONTROL CIRCUIT LOW BANK 1 SENSOR 2DTC DETECTING CONDITION:Detected when two consecutive driving cycles with fault occur.CAUTION:After servicing or replacing faulty parts, perform Clear M ...