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Home/DTC Codes/Cadillac/SRX/2007-2007 3.6L V6/P0091
P0091

Fuel Pressure Regulator 1 Control Circuit Low

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 p0091 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.

Description

Low voltage in the fuel pressure regulator control circuit.

Symptoms

  • Check Engine Light
  • Low fuel pressure

Common Causes

  • Short to ground
  • Faulty regulator

Diagnostic Steps

  1. Test voltage
  2. Check for shorts

Repair Notes

Repair or replace.

Related Codes

P0090Fuel Pressure Regulator 1 Control CircuitP0092Fuel Pressure Regulator 1 Control Circuit High

Other Powertrain Codes

P0091 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 P0091 mean on a 2007-2007 Cadillac SRX?

P0091 stands for "Fuel Pressure Regulator 1 Control Circuit Low". Low voltage in the fuel pressure regulator control circuit.

What are the symptoms of P0091 on a Cadillac SRX?

Common symptoms of P0091 include: Check Engine Light, Low fuel pressure.

What causes P0091 on a 2007-2007 Cadillac SRX?

Common causes of P0091 include: Short to ground, Faulty regulator.

Last updated: March 2026

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