What does error code # P0031 mean ? on my 2003 Suzuki XL-7 ? Thanks.

Asked by Jan 21, 2017 at 07:40 PM about the 2003 Suzuki XL-7 Limited 2WD

Question type: Maintenance & Repair

1 Answer

75,545

P0031 SUZUKI - HO2S11 Heater Control Circuit Low..... Possible causes; Faulty Heated Oxygen Sensor (H2OS) Bank 1, Sensor 1 Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 harness is open shorted to ground, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse, Faulty Engine Control Module (ECM)..... The code means that there is a problem with the heater element circuit of the heated oxygen sensor. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow, which is a very common problem for this type codes. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors.

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