P0134 on Suzuki Wagon R: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

Short answer: P0134 means “O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)”. The car’s computer has found a fault in the Emissions system and turns on the Check engine light (MIL). First check: read the code and live data with an OBD-II scanner.

Standard OBD-II code Same meaning on all cars (SAE J2012). Not checked against this car’s factory manual.

Code

P0134

System

Emissions

Dashboard light

Check engine light (MIL)

Also sold as

Maruti Suzuki Wagon R, Suzuki Karimun Wagon R (Indonesia)

Applies to

Generic OBD-II meaning. Not every code is used by this car.

Confidence

medium (generic OBD-II definition, not checked against the factory manual for this car)

Source

obd-codes.com

Symptoms and when it is set

1. Check engine light on

Likely causes

1. Bad O2 (oxygen) sensor
2. Bad heater circuit in the O2 sensor
3. Wiring or connector to the sensor frayed / broken
4. Blown heater circuit fuse
5. Holes in the exhaust system
6. PCM failure

What to check, in order

1. Read the code and live data with an OBD-II scanner
2. Look for exhaust or vacuum leaks and check the wiring of the sensor or valve
3. Test the part before replacing it
4. Fix the cause, clear the code and test-drive

Related on this car

• All fault codes for this car
• Warning lights
• Where the parts are (parts map)
• Common problems

Same code on other cars

• P0134 · Toyota Passo (1st gen)
• P0134 · Toyota Corolla (11th gen, E170)
• P0134 · Toyota Corolla (10th gen, E140)
• P0134 · Honda City (5th gen, GM2)
• P0134 · Honda Civic (10th gen, FC)
• P0134 on all cars compared

← P0133 P0135 →

Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.