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Code P1196

Quick reference

P1196 at a glance

Plain-language meaning
This code means there's a problem with a sensor in your car's engine that measures air pressure. It's not working right, and it's on the side of the engine where the second set of cylinders is.
Urgency
Moderate – It's important to address this issue to avoid further engine performance problems.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Socket set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means there's a problem with a sensor in your car's engine that measures air pressure. It's not working right, and it's on the side of the engine where the second set of cylinders is.

Explanation

The P1196 code indicates that the differential pressure sensor for the intake manifold on bank 2 is reading a voltage lower than expected.

Technical description

The differential pressure sensor measures the pressure difference between the intake manifold and the atmosphere. The sensor's output voltage is used by the engine control module (ECM) to adjust fuel delivery and other parameters. A low circuit signal suggests that the sensor is not providing the correct voltage, which can affect engine performance.

Symptoms

• Check Engine Light is on

• Poor engine performance

• Increased fuel consumption

Common Causes

• Faulty differential pressure sensor

• Wiring issues such as open or short circuits

• Faulty ECM

Glossary

Differential Pressure Sensor: A sensor that measures the difference in pressure between two points.

Intake Manifold: A part of the engine that distributes air to the cylinders.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors for damage or corrosion.

• Test the differential pressure sensor with a multimeter.

Repair procedures

• Replace the differential pressure sensor.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the ECM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Socket set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford F-150

Preventive measures

• Regularly inspect sensors and wiring.

• Keep the engine clean to prevent debris buildup.

• Perform regular maintenance checks.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the Check Engine Light.

• Seek professional help if unsure about repairs.

Warranty information

Check if the vehicle's warranty covers sensor replacements.

Historical data

This code has been associated with sensor failures in vehicles with high mileage.

Urgency level

Moderate – It's important to address this issue to avoid further engine performance problems.

Testing conditions

• Engine running

• Vehicle at operating temperature

Component location

The differential pressure sensor is located on the intake manifold on the side of the engine with the second set of cylinders (bank 2).

FAQs

Q: Can I drive with code P1196?
A: It's not recommended as it can lead to poor engine performance and increased emissions.

Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.

Optional diagnostic gear

Tools that may help diagnose P1196

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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