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Code P1396

Quick reference

P1396 at a glance

Plain-language meaning
This code means that the car's computer is having trouble understanding the timing of the engine's crankshaft. It's like when you can't tell if a clock is working right because the hands are moving in a weird way.
Urgency
Moderate – It should be addressed soon to prevent further engine performance issues.
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 that the car's computer is having trouble understanding the timing of the engine's crankshaft. It's like when you can't tell if a clock is working right because the hands are moving in a weird way.

Explanation

The engine control module (ECM) uses the crankshaft position sensor to monitor the timing of the engine's crankshaft. If the timing information from the sensor doesn't match expected values, this code is triggered.

Technical description

The P1396 code indicates that the ECM has detected an inconsistency in the timing signals from the crankshaft position sensor. This can be due to a faulty sensor, wiring issues, or mechanical problems affecting the crankshaft's rotation.

Symptoms

• Engine misfires

• Poor acceleration

• Check Engine Light illuminated

Common Causes

• Faulty crankshaft position sensor

• Wiring issues or poor connections

• Mechanical problems with the crankshaft

Glossary

ECM: Engine Control Module

OBD-II: On-Board Diagnostics II

Diagnosis steps

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

• Inspect the crankshaft position sensor and its wiring.

• Check for any mechanical issues with the crankshaft.

Repair procedures

• Replace the crankshaft position sensor if faulty.

• Repair or replace damaged wiring or connectors.

• Address any mechanical issues with the crankshaft.

Tools required

• OBD-II scanner

• Multimeter

• Socket set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Ford Focus

• Chevrolet Malibu

• Honda Accord

Preventive measures

• Regularly inspect and maintain engine components.

• Ensure all electrical connections are secure.

• Perform routine engine diagnostics.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the Check Engine Light.

• Get the vehicle inspected by a professional if you experience any symptoms.

Warranty information

Check with the vehicle manufacturer for warranty coverage on engine sensors.

Historical data

This code has been associated with timing issues in various vehicle models over the years, often due to sensor wear or wiring problems.

Urgency level

Moderate – It should be addressed soon to prevent further engine performance issues.

Testing conditions

• Engine at operating temperature

• Vehicle in a stationary position

Component location

The crankshaft position sensor is typically located near the bottom of the engine, close to the crankshaft pulley or flywheel.

FAQs

Q: Can I drive my car with a P1396 code?
A: It's not recommended to drive for long periods with this code, as it can lead to engine performance issues.

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

Optional diagnostic gear

Tools that may help diagnose P1396

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.

Fitment matters

Commonly referenced parts for P1396

NGK Spark Plugs product illustration

Fitment Required · Vehicle-fitment part

NGK Spark Plugs

Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.

Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.

Check the correct plug type, gap, and engine application for your vehicle.

View options on Amazon
Delphi Ignition Coil product illustration

Fitment Required · Vehicle-fitment part

Delphi Ignition Coil

Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.

Some ignition faults involve coil performance or cylinder-specific coil problems.

Match the coil to your engine and confirm the failed component before ordering.

View options on Amazon

These parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.

Source: ezOBD2 diagnostic database
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