The Lemon IndexThe downstream O2 sensor (after the catalytic converter) has a fault.
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Failed O2 sensor. Then: wiring fault; exhaust leak.
Owners named P0136 in 5 complaints to the U.S. government, most often on the Toyota.
The details
What P0136 means
The downstream O2 sensor (after the catalytic converter) has a fault.
Can I drive with P0136?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Common causes of P0136
- Failed O2 sensor
- Wiring fault
- Exhaust leak
A shop should confirm the cause with a scan and tests before replacing parts.
Related codes
P0135 P0137 P0138 P0133 P0131 P0140 P0141 P0128
Quick answers
What does P0136 mean?
O2 Sensor Circuit (Bank 1 Sensor 2). The downstream O2 sensor (after the catalytic converter) has a fault.
Can I drive with P0136?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
What causes P0136?
Failed O2 sensor; Wiring fault; Exhaust leak.
Counts: NHTSA owner complaints whose text names P0136. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.