Fault code lookup

PowertrainP0137

Caution

Severity: Caution - get it checked when you can

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

44 brands affected · Generic SAE J2012 description.

Key terms: Catalytic converter: cleans the exhaust gases · Oxygen sensor: measures oxygen in the exhaust gas · Bank 1: the side of the engine containing cylinder 1 · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

The oxygen sensor after the catalytic converter is reporting a voltage that is too low.

2Common causes

  1. Faulty oxygen sensor
  2. Exhaust leak near the sensor
  3. Damaged wiring or connector
  4. Catalytic converter damage
  5. Contaminated sensor

3Can I drive?

Caution · drive with care

Usually safe to drive. Have it checked before an emissions or roadworthiness inspection.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 44

BrandCodeDescriptionSystem
Ashok Leyland CVP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
BAIC MotorP0137Rear O2 Sensor Short Low BrandPowertrain
Mercedes-BenzP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
BMWP0137Intercore short-circuit BrandPowertrain
BYDP0137Oxygen sensor low BrandPowertrain
CheryP0137Oxygen sensor low BrandPowertrain
ChryslerP0137Oxygen sensor 1/2 above threshold BrandPowertrain
DaewooP0137O2 sensor 2 lean exhaust BrandPowertrain
DaihatsuP0137O2 (A/F) sensor system B1S2 BrandPowertrain
DFFSP0137Downstream oxygen sensor signal failure BrandPowertrain
DFFXP0137Oxygen sensor low BrandPowertrain
DFXKP0137Downstream sensor circuit low BrandPowertrain
EOBDP0137O2-sensorcircuit lage spanning bank 1 sensor 2 BrandPowertrain
FordP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
GeelyP0137Oxygen sensor low BrandPowertrain
GMP0137HO2S circuit low voltage bank 1 sensor 2 BrandPowertrain
Great WallP0137Oxygen sensor low BrandPowertrain
HafeiP0137Oxygen sensor low BrandPowertrain
HoldenP0137HO2S Circuit Low Voltage Sensor 2 BrandPowertrain
HondaP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
HyundaiP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
IsuzuP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
Land RoverP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
MahindraP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
MaseratiP0137Oxygen sensor circuit low (bank 1 sensor 2) BrandPowertrain
MazdaP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
MitsubishiP0137Oxygen sensor low BrandPowertrain
NissanP0137Heated oxygen sensor 2 BrandPowertrain
OpelP0137HO2S circuit low voltage bank 1 sensor 2 BrandPowertrain
PeroduaP0137O2 (A/F) sensor system B1S2 BrandPowertrain
PeugeotP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
PorscheP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
ProtonP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
RenaultP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
SaabP0137HO2S circuit low voltage bank 1 sensor 2 BrandPowertrain
MG (SAIC)P0137O2 Sensor Circ.,Bank1-Sensor2 Low Voltage BrandPowertrain
SmartP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
SprinterP0137O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) SAEPowertrain
SubaruP0137O2 Sensor Circuit Low Voltage BrandPowertrain
SuzukiP0137O2 Sensor (HO2S) Circuit Low Voltage (Sensor2) BrandPowertrain
SWM MotorP0137Rear oxygen sensor voltage is low BrandPowertrain
TataP0137Oxygen Sensor 2 BrandPowertrain
ToyotaP0137Downstream oxygen sensor short to low voltage BrandPowertrain
VolkswagenP0137Oxygen (Lambda) sensor B1 S2: signal too low BrandPowertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 3

These 7-character codes are manufacturer-specific variants of P0137 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP013700Die Lambdasonde 2 (Zylinderreihe 1) hat Kurzschluss nach Masse. BrandPowertrain
SsangYongP013700No.2 Oxygen sensor - below the minimum permissible voltage BrandPowertrain
Mercedes-BenzP013711Die Lambdasonde 2 (Zylinderreihe 1) hat Kurzschluss nach Masse. Es liegt ein Kurzschluss nach Masse vor. BrandPowertrain

6Related codes

  • P0130 O2 Sensor Circuit (Bank 1 Sensor 1)
  • P0131 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
  • P0132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
  • P0133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
  • P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
  • P0135 O2 Sensor Heater Circuit (Bank 1 Sensor 1)
  • P0136 O2 Sensor Circuit (Bank 1 Sensor 2)
  • P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
  • P0139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
  • P013A O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2)
  • P013B O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 2
  • P013C O2 Sensor Slow Response - Rich to Lean (Bank 2 Sensor 2)

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