Operation CHARM: Car repair manuals for everyone.
Home >> Honda >> 1995 >> Accord Sedan V6-2.7L SOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Testing and Inspection >> Secondary
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Secondary




[P0137] The scan tool indicates Diagnostic Trouble Code (DTC) PO137: A low voltage problem in the Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) circuit.





[P0138] The scan tool indicates Diagnostic Trouble Code (DTC) PO138: A high voltage problem in the Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) circuit.





[P0139] The scan tool indicates Diagnostic Trouble Code (DTC) PO139: A slow response problem in the Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) circuit.

pro multis · About Operation CHARM