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Toyota Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 686 > < Component Tests and General Diagnostics|Page 684
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 Oxygen Sensor Inspection Chart

SUB-SENSOR INSPECTION

Inspect the sub oxygen sensor ONLY when data trouble code No.27 is displayed.

NOTE: 
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For information on testing the Main Oxygen Sensor circuit, refer to DTC 21 under the "Trouble Code Charts".

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For information on testing the Sub Oxygen Sensor circuit, refer to DTC 27 under the "Trouble Code Charts".
See: Powertrain Management/Computers and Control Systems/Testing and Inspection

Component Tests and General Diagnostics|Page 686 > < Component Tests and General Diagnostics|Page 684