Use Diagnostic Trouble Codes (DTCs) (from the DTC checks) in the table below to determine the trouble area and proper inspection procedure. The Supplemental Restraint System (SRS) diagnostic trouble code chart is shown below as an example.

Symptom simulation
Problem symptoms tableExhaust pipe ASSY (3MZ-FE)
COMPONENTS
REPLACEMENT
NOTICE:
Check if an old gasket remains on the pipe. If remains, remove it. Check if any
bolts or nuts are rusted.
If rusted, replace them.
1. REMOVE HEATED OXYGEN SENSOR
(a) Remove the 2 heated oxygen sensors (bank 1, 2 sensor
2).
2. REMOVE EXHAUST PIPE ASSY ...