Troubleshooting steps
Diagnose P0135 using service manual, check related sensors and wiring, repair or replace faulty components
Motorcycle Diagnostic Codes
P0135 – O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
Details
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) detected on Harley-Davidson motorcycle. This diagnostic trouble code indicates a problem that requires attention.
Error typeerror
MeaningO2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
Typical causesSensor failure, wiring issue, component malfunction, system fault
SolutionsDiagnose P0135 using service manual, check related sensors and wiring, repair or replace faulty components
Severityhigh
Catalog references
Where this appears
Harley-DavidsonP0135
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What does P0135 mean on Harley-Davidson?
P0135 on Harley-Davidson indicates o2 sensor heater circuit malfunction (bank 1 sensor 1). Consult service manual for specific diagnosis procedures.
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