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Home/DTC Codes/Cadillac/SRX/2007-2007 3.6L V6/P0157
P0157

O2 Sensor Circuit Low Voltage Bank 2 Sensor 2

2007-2007 Cadillac SRX 3.6L V6

Moderate SeverityPowertrainGeneric (SAE)

The 2007 Cadillac SRX is equipped with a 3.6L V6 engine. Below you'll find detailed p0157 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.

Description

Low voltage from the downstream O2 sensor on Bank 2.

Symptoms

  • Check Engine Light

Common Causes

  • Faulty sensor
  • Short to ground
  • Exhaust leak

Diagnostic Steps

  1. Test voltage
  2. Check for shorts

Repair Notes

Replace sensor.

Related Codes

P0156O2 Sensor Circuit Bank 2 Sensor 2P0158O2 Sensor Circuit High Voltage Bank 2 Sensor 2

Other Powertrain Codes

P0157 on Other Vehicles

Cadillac ATS

2013-2013 2.0L Turbo I4

Cadillac ATS

2013-2013 2.5L I4

Cadillac ATS

2013-2013 3.6L V6

Cadillac ATS

2014-2014 2.0L Turbo I4

Cadillac ATS

2014-2014 2.5L I4

Cadillac ATS

2014-2014 3.6L V6

Cadillac ATS

2015-2015 2.0L Turbo I4

Cadillac ATS

2015-2015 2.5L I4

Common Questions

What does code P0157 mean on a 2007-2007 Cadillac SRX?

P0157 stands for "O2 Sensor Circuit Low Voltage Bank 2 Sensor 2". Low voltage from the downstream O2 sensor on Bank 2.

What are the symptoms of P0157 on a Cadillac SRX?

Common symptoms of P0157 include: Check Engine Light.

What causes P0157 on a 2007-2007 Cadillac SRX?

Common causes of P0157 include: Faulty sensor, Short to ground, Exhaust leak.

Last updated: March 2026

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