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Alfa Romeo DTC

Alfa Romeo DTC P0131

Manufacture

Alfa Romeo DTC

Code

P0131

Definition

O2 Sensor Circuit Low Voltage

Description

The Powertrain Control Module (PCM) detects a short to ground on the O2 Sensor 1 1 Signal circuit. After the first fault is detected the sensor is shutdown and re-initialized and the test is repeated. A fault is set after the monitor runs and fails for 7 counts.

Cause

  • O2 Sensor 1 1 Signal Circuit Shorted To GroundO2 Sensor 1 1 Return Circuit Shorted To GroundO2 Sensor 1 1 Positive Current Control Circuit Shorted To GroundO2 Sensor 1 1 Pump Cell Current Trim Circuit Shorted To GroundO2 SensorPowertrain Control Module (Pcm)

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