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Home >> Lexus >> 1997 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Circuit Tests >> DTC P0135, P0141, P0155, P0161 - Oxygen Sensor Related >> Notes
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DTC P0135, P0141, P0155, P0161 - Oxygen Sensor Related: Notes

CODE DEFINITION - DTC P0135, P0141, P0155, P0161

CODE DESCRIPTION
DTC P0135 HEATED OXYGEN SENSOR CIRCUIT (BANK NO. 1, SENSOR NO. 1)
DTC P0141 HEATED OXYGEN SENSOR CIRCUIT (BANK NO. 1, SENSOR NO. 2)
DTC P0155 HEATED OXYGEN SENSOR CIRCUIT (BANK NO. 2, SENSOR NO. 1)
DTC P0161 HEATED OXYGEN SENSOR CIRCUIT (BANK NO. 2, SENSOR NO. 2)
NOTE: Bank No. 1 refers to bank that includes cylinder No. 1. Bank No. 2 refers to bank without cylinder No. 1. Sensor No. 1 refers to sensor closest to engine block. Sensor No. 2 refers to sensor furthest away from engine block.
CAUTION: If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction.