Diagnostic Trouble Code (DTC): P1105 - MAP/BARO Pressure Switch Solenoid Valve

Our certified mechanics come to you · Get a fair and transparent estimate upfront


Cost of diagnosing the Diagnostic code

Diagnostic is a diagnostic trouble code (DTC) for "Trouble Code (DTC) P1105 - MAP/BARO Pressure Switch Solenoid Valve". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford $114.99 $20.0
Toyota $114.99 $20.0
BMW $124.99 $20.0
SCHEDULE Diagnostic DIAGNOSTIC Get a fair and transparent estimate upfront

P1105 code definition

The P1105 code is a manufacturer specific powertrain code that means the engine control module (ECM) has detected a fault or malfunction with the Manifold Absolute Pressure (MAP)/Barometric (BARO) pressure switch solenoid valve.

Codes related to the P1105 include:

What the P1105 code means

A code P1105 will be stored when the voltage signal from the MAP/BARO pressure switch that received by the engine control module (ECM) is too high or too low.

The ECM uses the Manifold Absolute Pressure (MAP) sensor to read manifold pressure and calculate air density and air mass flow rate. This information then determines how much fuel metering is needed for combustion. The MAP/BARO switch solenoid valve is used to switch the airflow passage based on voltage signals sent by the ECM.

Some Nissan vehicles will have the MAP sensor is built into the ECM.

What causes the P1105 code?

Several problems may cause a P1105 code including:

What are the symptoms of the P1105 code?

Symptoms of a P1105 code may include:

How does a mechanic diagnose the P1105 code?

A mechanic may use several methods to diagnose a P1105 trouble code, including:

  • Utilize an OBD-II scanner to check for a stored P1105 trouble code
  • Visually inspect the electrical wiring for corrosion or signs of damage
  • Check electrical connectors, harness, and relays for signs of damage
  • Check vacuum line for tears or leaks
  • Check for damaged or defective MAP sensor
  • Use a vacuum testing device to check BARO sensor
  • Check MAP pressure switch for power and signal

Common mistakes when diagnosing the P1105 code

One common mistake when diagnosing a P1105 code is replacing the sensors without checking for any leaks or electrical connection issues first.

How serious is the P1105 code?

Because a vehicle’s safe driving operation most likely will be impacted due to faults that store a P1105 code, this code is considered a potentially serious code. When this code appears, it is recommended to immediately take your vehicle to your local service center or mechanic for repair and diagnosis.

What repairs can fix the P1105 code?

Several repairs can fix a P1105 trouble code and include:

  • Repair or replace damaged, corroded, open, or shorted electrical wiring and related connectors
  • Repair or replace leaking vacuum lines
  • Replace damaged or defective MAP sensor
  • Replace damaged or defective BARO sensor
  • Replace damaged or defective ECM
  • Clear all codes, test-drive the vehicle, and rescan to see if any codes reappear

Note, most Nissan makes and models have the MAP sensor in a different location, so it is recommended to check your vehicle service manual for specifics as to the location in your vehicle. This trouble code also applies to some Infiniti models.

Need help with a P1105 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

Check Engine Light
trouble codes
P1105

No more waiting rooms! Our mechanics will come to you to diagnose and fix the Diagnostic code.

SCHEDULE Diagnostic DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(7400)

Rating Summary
6879
249
58
41
173
6879
249
58
41
173
 at YourMechanic

David

13 years of experience
393 reviews
David
13 years of experience
Chevrolet Malibu L4-2.4L - Check Engine Light is on Inspection - Marietta, Georgia
He explained everything to me in detail on what I needed to know about my car. Definitely recommend him for getting the job done.
 at YourMechanic

Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Toyota Camry L4-2.2L - Check Engine Light is on - Las Vegas, Nevada
Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. should I expect this on future appointments with your mechanic ?
 at YourMechanic

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Volkswagen EuroVan V6-2.8L - Check Engine Light is on Inspection - Austin, Texas
Arrived on time. Explained the issues he found and how he will fix it. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive.
 at YourMechanic

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Ford F-150 V8-4.6L - Check Engine Light is on Inspection - Littleton, Colorado
Kanstantsin arrived early. Was very courteous and professional. Will highly recommend to anyone. Thank you Kanstantsin.


More related articles

Related questions

High idling, check engine light on
The Check Engine Light being on indicates there is a problem and a code will have been set. Have the light checked for codes and then get a professional to thoroughly diagnose the Check Engine Light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) to see what...
P0420 code and dash lighs on
The vehicle stability control (VSC) light and code P0420 (https://www.yourmechanic.com/article/p0420-obd-ii-trouble-code-catalyst-system-efficiency-below-threshold-bank-1-by-jamahl-walker) are for two different problems. The VSC system would need to be tested for codes for that system. The code P0420 is for the O2 sensor or problem with a...
I need help with diagnostic trouble codes that suddenly appeared making vehicle almost undriveable.
Firstly, you should have the battery disconnected and the PCM disconnected. Check their connectors for any problems and apply dielectric lube to the connectors so the connection is clean from corrosion. If the problem continues then replace the PCM. All...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com