Master the diy steps to accurately diagnose the p0137 code, testing the circuit, wiring, and exhaust for the true cause. Full diagnostic guide + 2026 repair costs. P0137 means your downstream oxygen sensor on bank 1 — the one mounted after the catalytic converter — is reading too low for too long
Causes and Fixes P0137 Code: Oxygen Sensor Circuit Low Voltage (Bank 1
In most cases the fix is.
This specific diagnostic trouble code (dtc) p0137 for kia vehicles indicates that there is a low voltage condition in the o2 sensor circuit of bank 1 sensor 2
Bank 1 refers to the side of the engine where the. Learn what the p0137 o2 sensor code means, common causes, symptoms, and repairs Find out if it’s safe to drive and how to fix it fast. If the ecu detects that the actual oxygen signal wire in bank 1, sensor 2 is registering a low voltage below 400 milli volts for more than 20 seconds, it will.
The p0137 code is set when the engine control module (ecm) detects that the rear o2 sensor signal voltage remains excessively low for an extended period of time. Replacing the downstream o2 sensor fixes p0137 in 70% of cases, but always check for a blown heater fuse first to save $150 Inspect the exhaust system for soot marks or ticking sounds. Fix p0137 o2 sensor low voltage
Get detailed steps on identifying bank 1 sensor 2 issues, checking wiring, pinpointing leaks, and completing the repair.
P0137 means the downstream oxygen sensor on bank 1 (sensor 2) is reading abnormally low voltage — below 0.4v for 20+ seconds The most common fix is replacing the downstream o2. Below, we will explain what this code means, why it appears, and. It is possible to diagnose the p0137 with a multimeter
If you use the multimeter, you’ll know whether or not the voltage coming to and from the oxygen sensor is within spec, this can help. The p0137 code stands for oxygen sensor circuit low voltage (bank 1, sensor 2). this sensor monitors the oxygen levels in the exhaust to. What does the p0137 code mean The p0137 code indicates there’s a fault with the second oxygen sensor located on bank 1
The p0137 code specifically translates to “o2 sensor circuit low voltage (bank 1 sensor 2),” targeting the sensor positioned after the main catalytic converter.
The oxygen sensor’s voltage was too low for at least. The p0137 code points to a downstream o2 sensor issue Learn the causes, symptoms, and fixes, and find out if it’s safe to. A p0137 code is set when the computer (ecm/pcm) detects low voltage on the bank 1, sensor 2 oxygen sensor
If the engine is in a lean running condition it can set a p0137 code. The diagnostic code p0137 indicates that the voltage produced by the #2 oxygen sensor, which is placed along bank 1, is lower than intended
